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HP StorageWorks
D2D Backup System
nl
HP D2D4112
User Guide
Part number: EH993-90919
Second edition: June 2009
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Legal and notice information
© Copyright 2009 Hewlett-Packard Development Company, L.P.
Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211
and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items
are licensed to the U.S. Government under vendor's standard commercial license.
The information contained herein is subject to change without notice. The only warranties for HP products and services are set
forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as
constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
WARRANTY STATEMENT: To obtain a copy of the warranty for this product, see the warranty information website:
h
ttp://www.hp.com/go/storagewarranty
Linear Tape-Open, LTO, LTO Logo, Ultrium and Ultrium Logo are trademarks of Quantum Corp, HP and IBM in the US, other
countries or both.
Patented under one or more of U.S. Patents Nos. 5,003,307; 5,016,009; 5,463,390; 5,506,580; held by Hi/fn, Inc.
Microsoft, Windows, Windows NT, and Windows XP are U.S. registered trademarks of Microsoft Corporation.
Intel and Itanium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other
countries.
AMD is a registered trademark of Advanced Micro Devices, Inc.
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Contents
About this guide ................................................................................. 15
Intended audience .................................................................................................................... 15
Related documentation .............................................................................................................. 15
Document conventions and symbols ............................................................................................. 15
HP technical support ................................................................................................................. 16
Customer self repair .................................................................................................................. 17
Registering your HP D2D Backup System ...................................................................................... 17
Subscription service .................................................................................................................. 17
HP websites ............................................................................................................................. 17
Documentation feedback ........................................................................................................... 17
1 Before you start ................................................................................ 19
Overview ................................................................................................................................. 19
Optional tape attach ................................................................................................................. 21
Software and hardware requirements .......................................................................................... 21
Terminology ............................................................................................................................. 21
Autoloaders ....................................................................................................................... 21
Backup devices and slots ..................................................................................................... 22
Deduplication .................................................................................................................... 22
Emulation types .................................................................................................................. 22
Fibre Channel .................................................................................................................... 22
Hosts ................................................................................................................................ 22
Hosts on an Ethernet network ............................................................................................... 23
Hosts on an FC network ...................................................................................................... 24
iSCSI ................................................................................................................................ 24
Libraries ............................................................................................................................ 24
Mail slots (import/export elements) ....................................................................................... 25
Physical tape drives ............................................................................................................25
RAID ................................................................................................................................ 25
Replication ........................................................................................................................ 25
Tape Attach ....................................................................................................................... 25
Storage capacity ...................................................................................................................... 25
Physical storage ................................................................................................................. 25
Tape rotation strategies ....................................................................................................... 26
Data deduplication ................................................................................................................... 26
Technology types ............................................................................................................... 27
Data deduplication and the HP D2D ..................................................................................... 27
Benefits of HP D2D deduplication ......................................................................................... 27
Deduplication and compression ........................................................................................... 28
Tape rotation example with data deduplication ..................................................................... 28
Retention policy ........................................................................................................... 28
Data parameters .......................................................................................................... 28
Typical savings ............................................................................................................ 28
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2 Connecting and installing the HP D2D Backup System .......................... 31
Installing the rail kit ................................................................................................................... 31
Overview .......................................................................................................................... 31
Kit contents ........................................................................................................................ 31
Important safety information ................................................................................................ 31
Installation guidelines .........................................................................................................32
Mounting the server ............................................................................................................ 32
Connecting the hardware .......................................................................................................... 35
Connecting to the Capacity Upgrade Kit (optional) ....................................................................... 36
Supported Ethernet configurations ...............................................................................................37
Ethernet network connection ................................................................................................ 37
IPv4 and IPv6 network protocols .................................................................................... 37
Dual network ports ....................................................................................................... 37
DHCP and static IP addressing ...................................................................................... 38
HP D2D on a Gigabit Ethernet network .......................................................................... 38
Powering on the HP D2D ........................................................................................................... 39
Software installation, discovery and configuration ......................................................................... 39
Installation wizard for Windows users ................................................................................... 40
Running the Installation wizard ...................................................................................... 40
Recommended web browser settings ........................................................................................... 44
Internet Explorer 7.X ..........................................................................................................44
Internet Explorer 6.X ...........................................................................................................44
Mozilla Firefox 1.5, Firefox 2.X and Firefox 3.X ...................................................................... 44
3 Attaching a physical tape library or tape drive (optional) ...................... 45
Hardware requirements for Tape Attach ....................................................................................... 45
Supported devices .............................................................................................................. 45
Tape device installation overview ................................................................................................ 46
Removing the top cover ............................................................................................................. 46
Installing the HBA ..................................................................................................................... 47
Removing the PCI Cage ...................................................................................................... 47
Removing the slot cover ....................................................................................................... 48
Installing the PCIe Card ...................................................................................................... 49
Reinstalling the PCI Cage .................................................................................................... 50
Replacing the top cover ............................................................................................................. 51
Connecting an external or rackmount storage device ..................................................................... 51
4 Advanced installation ....................................................................... 53
Manual driver installation .......................................................................................................... 53
HP LTO Tape driver ............................................................................................................. 53
Medium changer driver ....................................................................................................... 53
Using DHCP to discover the HP D2D Backup System (IPv4 only) ...................................................... 54
Using the Discovery Engine to discover the HP D2D Backup System (IPv4 only) ................................. 54
Beacon mode .................................................................................................................... 55
If the HP D2D Backup System is new and not yet configured .................................................... 55
If the HP D2D Backup System has been configured incorrectly .................................................. 55
If the network setup has been changed ................................................................................. 55
Using the console to discover the HP D2D Backup System (IPv4 and IPv6) ........................................ 56
To connect the system console .............................................................................................. 56
iSCSI Initiator ........................................................................................................................... 57
Manual iSCSI initiator installation ......................................................................................... 58
The iSCSI Initiator and Authentication ................................................................................... 59
The Microsoft iSCSI Initiator ................................................................................................. 59
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General tab ................................................................................................................ 59
Discovery tab .............................................................................................................. 61
Targets tab .................................................................................................................. 61
Persistent Targets tab .................................................................................................... 63
Bound Volumes/Devices tab .......................................................................................... 64
Linux and UNIX iSCSI initiators ................................................................................................... 64
5 HP D2D Backup Systems and Fibre Channel ........................................ 65
Fibre Channel topologies ........................................................................................................... 65
Zoning .................................................................................................................................... 65
Fibre Channel connection .......................................................................................................... 66
Fibre Channel (Configuration) ..................................................................................................... 67
To edit the FC configuration ................................................................................................. 68
Fibre Channel (Status) ............................................................................................................... 68
Devices section .................................................................................................................. 69
Library section ................................................................................................................... 69
6 LEDs ............................................................................................... 71
Front panel LEDs ....................................................................................................................... 71
Hot-plug drive LEDs ............................................................................................................ 71
Capacity upgrade kit LEDs ......................................................................................................... 72
Rear panel LEDs ....................................................................................................................... 73
Fibre Channel card LEDs ............................................................................................................ 73
Beacon mode ........................................................................................................................... 74
7 Configuring and using replication ...................................................... 75
Replication overview ................................................................................................................. 75
How is replication initiated? ................................................................................................ 75
Replication and Tape Attach ................................................................................................ 76
Preparing for replication ............................................................................................................ 76
Replication concepts and terminology .......................................................................................... 76
Replication elements ........................................................................................................... 76
Fan In, Fan Out and job concurrency .................................................................................... 77
Fan OUT .................................................................................................................... 77
Fan IN ....................................................................................................................... 79
Job concurrency .......................................................................................................... 81
Backup applications and target libraries ...................................................................................... 82
Why make target libraries visible? ........................................................................................ 82
Best practices for using this feature ....................................................................................... 83
How is a target library made visible? .................................................................................... 83
Replication deployment strategies ...............................................................................................84
Active to Passive example .................................................................................................... 84
Active to Active example ..................................................................................................... 85
Many to One example ........................................................................................................ 85
Replication Licensing ................................................................................................................. 86
Before you start .................................................................................................................. 86
Creating the LTU ................................................................................................................87
Applying the LTU ................................................................................................................87
The Replication process ............................................................................................................. 88
Seeding the Replication Target Appliance .............................................................................. 88
Running the replication wizard ............................................................................................. 90
Recovering a Source Appliance .................................................................................................. 94
Reverse replication using the wizard ..................................................................................... 95
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Reverse replication, source lost and mapping deleted .............................................................. 97
Promoting a Target Library over the WAN using SCSI ............................................................. 99
Promoting a Target Library using colocation ......................................................................... 101
Recovery from physical media direct to host ......................................................................... 103
8 The Web Management Interface ...................................................... 107
What is the Web Management interface? .................................................................................. 107
To run the Web Management Interface ...................................................................................... 107
Summary (Home) .................................................................................................................... 108
Status icons ..................................................................................................................... 110
Initial Logon .................................................................................................................... 110
Devices (Configuration) ............................................................................................................ 110
Emulation types for tape devices ......................................................................................... 112
Libraries, slots and storage capacity ................................................................................... 112
User recommendations ............................................................................................... 113
Source and target libraries .......................................................................................... 113
To view device details ....................................................................................................... 113
To edit device details ........................................................................................................ 113
To create a new device ..................................................................................................... 113
To delete a device ............................................................................................................ 116
Cartridges (Configuration) ....................................................................................................... 116
Empty slots ...................................................................................................................... 118
To delete a cartridge ........................................................................................................ 118
To write protect a cartridge ................................................................................................ 118
To edit maximum size ....................................................................................................... 119
To create a cartridge ........................................................................................................ 119
To move or unload cartridges ............................................................................................ 120
Network (Configuration) .......................................................................................................... 120
Network configuration ...................................................................................................... 120
To edit network settings .............................................................................................. 120
Resetting network settings to factory defaults ........................................................................ 121
Beacon mode .................................................................................................................. 122
Fibre Channel (Configuration) ................................................................................................... 122
Email Alerts (Configuration) ...................................................................................................... 122
To configure Microsoft Exchange Server .............................................................................. 123
Storage (Status) ...................................................................................................................... 124
Storage pool ................................................................................................................... 125
Storage Pool ............................................................................................................. 125
Configured shelves ..................................................................................................... 126
Storage usage ........................................................................................................... 126
Device storage usage ................................................................................................. 126
RAID .............................................................................................................................. 127
RAID controllers ......................................................................................................... 127
Logical units .............................................................................................................. 127
Shelves ........................................................................................................................... 128
Shelves ..................................................................................................................... 128
Physical disks ............................................................................................................ 128
iSCSI (Status) .......................................................................................................................... 129
Fibre Channel (Status) ............................................................................................................. 130
Log (Status) ............................................................................................................................ 130
Sorting and searching the log ............................................................................................ 131
Tape Attach pages .................................................................................................................. 131
Replication pages ................................................................................................................... 131
Status (Replication) .................................................................................................................. 131
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Mapping Configuration (Replication) ......................................................................................... 132
Local library .................................................................................................................... 133
The replication wizards ..................................................................................................... 135
Appliance (Replication) ........................................................................................................... 135
To add a target appliance ................................................................................................. 136
To edit or remove a Target Appliance ................................................................................. 136
Target and Source Appliance parameters ............................................................................ 136
Local Settings (Replication) ....................................................................................................... 137
Configure blackout windows .............................................................................................. 137
Configure replication ports ................................................................................................ 138
Enable bandwidth limiting ................................................................................................. 138
Event History (Replication) ........................................................................................................ 138
Sorting and searching the event history .............................................................................. 139
Admin (Settings) ..................................................................................................................... 139
Resetting the password ...................................................................................................... 140
Date & Time (Settings) ............................................................................................................. 140
Shutdown (Settings) ................................................................................................................. 141
Firmware (Settings) .................................................................................................................. 142
What is the Language and Help Text Pack? ......................................................................... 142
Upgrading the firmware .................................................................................................... 142
Upgrading the language and help text pack ........................................................................ 143
Support (Settings) ................................................................................................................... 144
License (Settings) .................................................................................................................... 145
More about replication licensing ....................................................................................... 145
More about capacity upgrade licensing ............................................................................. 145
To apply the license key .................................................................................................... 146
9 Using Tape Attach .......................................................................... 147
Options for archiving to tape .................................................................................................... 147
A note about terminology .................................................................................................. 147
Archiving methods .................................................................................................................. 148
Cartridge copy ................................................................................................................ 148
Why use the Copy functionality? .................................................................................. 149
When would Copy be used? ....................................................................................... 149
When is it necessary to restore from a copied cartridge? ................................................ 149
Disadvantages of Copy ............................................................................................. 150
Cartridge export .............................................................................................................. 150
Why use the Export functionality? ................................................................................ 151
When would Export be used? ..................................................................................... 151
When would I restore from an exported cartridge? ......................................................... 151
Disadvantages of Export ............................................................................................ 152
Compression ................................................................................................................... 152
Cartridge import .............................................................................................................. 152
Tape spanning ................................................................................................................ 153
Tape Attach and replication ..................................................................................................... 153
Using the Tape Attach web pages ............................................................................................. 154
Configuration (Tape Attach) ............................................................................................... 154
Adding tape storage devices to the list ........................................................................ 155
Viewing and editing tape device details ....................................................................... 155
Viewing cartridge details ........................................................................................... 155
Obtaining support .................................................................................................... 155
Upgrading tape storage device firmware ...................................................................... 156
Manual jobs (Tape Attach) ................................................................................................ 157
To select cartridges on the HP D2D library .................................................................... 158
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To copy to attached tape storage device ....................................................................... 158
To export to attached tape storage device ..................................................................... 160
To import from attached tape storage device ................................................................. 161
Scheduled jobs (Tape Attach) ............................................................................................. 162
To create a scheduled job ........................................................................................... 163
Sorting and searching scheduled jobs ......................................................................... 167
To view, edit or delete existing schedules ...................................................................... 167
Status (Tape Attach) .......................................................................................................... 168
To cancel a job ......................................................................................................... 169
If an error occurs ....................................................................................................... 169
Job History (Tape Attach) .................................................................................................. 170
Sorting and searching the job history .......................................................................... 170
10 Copy using a tape drive attached to the host ................................... 171
Requirements .......................................................................................................................... 171
Tape drives supported ....................................................................................................... 171
Archive from host to tape process .............................................................................................. 172
Further information ........................................................................................................... 172
Compression .......................................................................................................................... 172
11 Restore processes without replication .............................................. 173
Restore scenarios .................................................................................................................... 173
Basic file restore ............................................................................................................... 173
Restore after host failure .................................................................................................... 173
Restore after site failure ..................................................................................................... 173
Restoring from the HP D2D Backup System ................................................................................. 174
Restore and deduplication ........................................................................................................ 174
Reconnecting to the HP D2D after host failure ............................................................................. 174
12 Troubleshooting ........................................................................... 179
Connecting the hardware ........................................................................................................ 179
Connecting to the HP D2D from the backup application ............................................................... 179
Connecting to the network ....................................................................................................... 179
Performance ........................................................................................................................... 180
Network ......................................................................................................................... 180
Web Management Interface errors and warnings ....................................................................... 180
Disk RAID errors and warnings .......................................................................................... 181
Network warnings ............................................................................................................ 181
System state ..................................................................................................................... 181
Storage Pool messages ..................................................................................................... 181
Power On/Off Problems .......................................................................................................... 182
HP D2D shuts down automatically ...................................................................................... 182
HP D2D does not boot up correctly ..................................................................................... 182
HP D2D System Health LED is flashing RED .......................................................................... 182
HP D2D boots up correctly, but cannot be seen on the network .............................................. 183
Cannot connect to Web Management Interface .......................................................................... 183
HP D2D is not visible on the network .................................................................................. 183
Cannot log in to the Web Management Interface ................................................................. 183
Cannot authenticate an iSCSI session ........................................................................................ 183
If the HP D2D Backup System runs out of disk space .................................................................... 183
HP D2D configuration problems ................................................................................................ 183
I cannot see a newly created device ................................................................................... 183
I cannot see additional slots from the backup application ...................................................... 184
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Upgrade licenses .................................................................................................................... 184
Can I transfer the License To Use to a different HP D2D? ........................................................ 184
More disks present than are licensed .................................................................................. 184
Replacement of hardware ........................................................................................................ 184
Event log displays ‘Invalid BIOS Assembly name’ ................................................................. 184
RAID battery backup status ................................................................................................ 184
If the RAID battery fails ..................................................................................................... 184
13 Hard disk replacement ................................................................. 185
RAID 6 .................................................................................................................................. 185
How do I know a disk has failed? ............................................................................................. 185
If you have email alerts ..................................................................................................... 187
The Event Log .................................................................................................................. 188
Replacing a hot-plug hard disk ................................................................................................. 188
After replacing the failed disk ................................................................................................... 190
Email alerts and Log ......................................................................................................... 190
If several disks fail .................................................................................................................. 190
Replacing the disks ........................................................................................................... 192
Restoring the storage pool ................................................................................................. 193
Creating cartridges .......................................................................................................... 195
14 Capacity Upgrade ....................................................................... 197
Introduction ............................................................................................................................ 197
Planning for the Capacity Upgrade ........................................................................................... 198
An overview of the capacity upgrade process ...................................................................... 198
Installing the rails and the Capacity Upgrade Kit ........................................................................ 198
Connecting the Capacity Upgrade Kit to the HP D2D .................................................................. 199
Applying the LTU .................................................................................................................... 200
Completing the RAID expansion ............................................................................................... 201
What happens during the expansion process? ..................................................................... 202
Index ............................................................................................... 205
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Figures
Front view of the HP D2D Backup System ................................................................... 201
Rear view of the HP D2D Backup System .................................................................... 202
Device configuration with one host ............................................................................ 233
Device configuration with multiple hosts ..................................................................... 244
Data stored after deduplication ................................................................................. 275
Space saving with deduplication ............................................................................... 296
Attach the rails to the rack columns ........................................................................... 337
Insert the HP D2D server into the rack ........................................................................ 348
CTO bracket location .............................................................................................. 349
Secure the HP D2D to the rack .................................................................................. 3510
Network and power connectors ................................................................................ 3511
Cabling the Capacity Upgrade Kit ............................................................................ 3712
Connecting to a business server on the main network .................................................. 3813
Connecting to a dedicated backup network ................................................................ 3914
Powering on the HP D2D Backup System .................................................................... 3915
Removing the top cover ........................................................................................... 4716
Removing the PCI cage ............................................................................................ 4817
Removing the slot cover (low profile) .......................................................................... 4918
Installing the PCIe card (in the low profile slot) ............................................................ 5019
Reinstalling the PCI cage ......................................................................................... 5020
Securing the PCI cage ............................................................................................. 5121
System console connections on the HP D2D ................................................................ 5622
System console screen ............................................................................................. 5723
iSCSI Initiator download page .................................................................................. 5824
General tab (iSCSI) ................................................................................................. 6025
CHAP secret ........................................................................................................... 6026
Discovery tab (iSCSI) ............................................................................................... 6127
Add target portal .................................................................................................... 6128
Targets tab (iSCSI) .................................................................................................. 6229
Advanced settings CHAP ......................................................................................... 6330
Persistent Targets tab (iSCSI) ..................................................................................... 6431
Front view of the HP D2D Backup System ................................................................... 7132
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Drive LEDs ............................................................................................................. 7233
Capacity Upgrade LEDs ........................................................................................... 7234
Rear panel LEDs ..................................................................................................... 7335
Replication and Tape attach ..................................................................................... 7636
Replication elements ................................................................................................ 7737
Fan OUT example for HP D2D400x and D2D41xx .................................................... 7838
HP D2D 2500 Fan OUT example .............................................................................. 7939
HP D2D250x Series Fan IN example ......................................................................... 8040
HP D2D400x and 41xx Series Fan IN example .......................................................... 8141
Active to Passive replication example ......................................................................... 8542
Active to active replication example ........................................................................... 8543
Many to one replication example .............................................................................. 8644
Seeding initial data using Tape Attach ....................................................................... 8945
Replication creation process ..................................................................................... 9046
Recovery by repopulating a replacement source appliance ........................................... 9547
Reverse replication process: source lost, mapping intact ............................................... 9648
Reverse replication process: source lost, mapping deleted ............................................ 9849
Recovery process: promoting a target library over the WAN ....................................... 10050
Recovery by relocating the Target Appliance ............................................................ 10151
Recovery process: promoting a target library using colocation .................................... 10252
Recovery process: using physical tape ..................................................................... 10453
Create new target appliance .................................................................................. 13654
Cartridge copy ..................................................................................................... 14955
Cartridge export ................................................................................................... 15156
Cartridge import ................................................................................................... 15357
Archiving to tape .................................................................................................. 17258
Drive LEDs ........................................................................................................... 18559
Summary page with RAID status warning ................................................................. 18660
Storage Pool tab with RAID status warning ............................................................... 18761
RAID tab with RAID status warning .......................................................................... 18762
Identifying the failed disk(s) .................................................................................... 18763
Log showing disk failure ........................................................................................ 18864
Disk numbering .................................................................................................... 18965
Removing the hard drive ........................................................................................ 18966
Installing a replacement hard disk ........................................................................... 19067
Status showing multiple disk failure on one shelf ....................................................... 19168
Storage—Shelves showing three disk failures ............................................................ 19269
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Storage—Shelves page after replacing disks ............................................................ 19370
Storage-Storage Pool tab, deleting the storage pool ................................................... 19471
Summary page while storage is deleted ................................................................... 19472
Summary page after storage is deleted .................................................................... 19473
Storage-Storage Pool tab, creating the storage pool ................................................... 19474
Summary page while storage is created .................................................................. 19575
Summary page after storage is created .................................................................... 19576
Status—Storage page after storage is created ........................................................... 19577
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Tables
Document conventions ............................................................................................. 151
Data deduplication savings, example 1 ..................................................................... 282
FC card LEDs ......................................................................................................... 733
Fan In, Fan Out and job concurrency rules ................................................................. 824
Summary page layout ........................................................................................... 1095
Device parameters (top half of the page) ................................................................. 1116
Device parameters ................................................................................................ 1147
Cartridge parameters ............................................................................................ 1178
Network parameters .............................................................................................. 1219
Network port parameters ....................................................................................... 12110
Email parameters .................................................................................................. 12311
Local library parameters ........................................................................................ 13312
Replication source for local library parameters .......................................................... 13413
Slot mapping for local library to source library parameters ......................................... 13414
Target appliance parameters .................................................................................. 13615
Source appliance parameters ................................................................................. 13716
Job schedule parameters ........................................................................................ 16617
Scheduled job details ............................................................................................ 16718
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About this guide
This guide provides information about:
• Installing the HP StorageWorks D2D Backup System
• Using the HP StorageWorks D2D Backup System
• Troubleshooting the HP StorageWorks D2D Backup System
Intended audience
This guide is intended for users who install, operate and maintain the HP StorageWorks D2D Backup
System.
Related documentation
In addition to this guide, the following document provides related information:
• ‘Start here' poster for an overview of the installation information in this guide (available in English,
French, German and Japanese)
You can find these documents from the Manuals page of the HP Business Support Center website:
http://www.hp.com/support/manuals
In the Storage section, click Storage Solutions and then select your product.
http://www.hp.com/support/manuals
Document conventions and symbols
Table 1 Document conventions
ElementConvention
Cross-reference links and e-mail addressesBlue text: Table 1
ttp://www.hp.com
Bold text
website addressesBlue, underlined text: h
• Keys that are pressed
• Text typed into a GUI element, such as a box
• GUI elements that are clicked or selected, such as menu
and list items, buttons, tabs, and check boxes
Text emphasisItalic text
D2D Backup System HP D2D4112 15
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Monospace text
ElementConvention
• File and directory names
• System output
• Code
• Commands, their arguments, and argument values
Monospace, italic text
Monospace, bold text
• Code variables
• Command variables
Emphasized monospace text
WARNING!
Indicates that failure to follow directions could result in bodily harm or death.
CAUTION:
Indicates that failure to follow directions could result in damage to equipment or data.
IMPORTANT:
Provides clarifying information or specific instructions.
NOTE:
Provides additional information.
HP technical support
For worldwide technical support information, see the HP support website:
http://www.hp.com/support
Before contacting HP, collect the following information:
• Product model names and numbers
• Technical support registration number (if applicable)
• Product serial numbers
• Error messages
• Operating system type and revision level
• Detailed questions
About this guide16
Page 17
Customer self repair
HP customer self repair (CSR) programs allow you to repair your StorageWorks product. If a CSR
part needs replacing, HP ships the part directly to you so that you can install it at your convenience.
Some parts do not qualify for CSR. Your HP-authorized service provider will determine whether a
repair can be accomplished by CSR.
For more information about CSR, contact your local service provider. For North America, see the CSR
website:
http://www.hp.com/go/selfrepair
Registering your HP D2D Backup System
Once you have installed and tested your HP D2D Backup System please take a few minutes to register
your product. You can register via the web (http://www.register.hp.com).
To ensure your registration is complete, there are a number of questions on the electronic form that
are mandatory. Other questions are optional. However, the more you feel able to complete, the better
HP can meet your needs.
Subscription service
HP recommends that you register your product at the Subscriber's Choice for Business website:
http://www.hp.com/go/e-updates
After registering, you will receive e-mail notification of product enhancements, new driver versions,
firmware updates, and other product resources.
HP websites
For additional information, see the following HP websites:
•http://www.hp.com
•http://www.hp.com/go/ebs
•http://www.hp.com/go/connect
•http://www.hp.com/go/storage
•http://www.hp.com/service_locator
•http://www.hp.com/support/manuals
•http://www.hp.com/support/downloads
Documentation feedback
HP welcomes your feedback.
To make comments and suggestions about product documentation, please send a message to
storagedocs.feedback@hp.com. All submissions become the property of HP.
D2D Backup System HP D2D4112 17
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About this guide18
Page 19
1 Before you start
In this chapter:
• “Overview” on page 19
• “Optional tape attach” on page 21
• “Software and hardware requirements” on page 21
• “Terminology” on page 21
• “Storage capacity” on page 25
Overview
The HP StorageWorks D2D Backup System is an iSCSI and Fibre Channel disk-based storage appliance
that emulates up to 24 tape devices, which can be used to back up host network servers or PCs. Each
tape device is configured as an Ultrium Tape Library or Autoloader. An emulation type is selected
during initial configuration and this determines the maximum number of drives and the maximum
number of slots that may be configured for the device. The default configuration emulates the HP
StorageWorks MSL2024 Tape Library.
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Figure 1 Front view of the HP D2D Backup System
5. LAN Port 1 LED1. Power On button/LED
6. LAN Port 2 LED2. Hot plug drives
7. Disk Online LED3. HP D2D Beacon LED
8. Disk Beacon LED4. System Health LED
4. Management LAN port (Do not connect to this port)
Figure 2 Rear view of the HP D2D Backup System
Before you start20
5. PCIe slots (two full and one low profile)1. Power supply cable sockets (two)
6. VGA port for system console monitor2. LAN port 1
7. PS/2 ports for system console keyboard and mouse3. LAN port 2
Page 21
NOTE:
One full PCIe slot has a SmartArray RAID controller card pre-installed. The other full PCIe slot is used
for the FC card. You must install the Tape Attach card in the low profile slot.
Optional tape attach
NOTE:
Always refer to http://www.hp.com/go/connect or http://www.hp.com/go/ebs to find out which
tape library and tape drive models are supported.
An external or rackmount Ultrium tape device may be attached directly to the HP D2D Backup System,
allowing the user to store backups offsite. Both SAS and SCSI tape devices are supported. SCSI tape
devices always require installation of a host bus adapter (HBA); SAS tape devices require installation
of a host bus adapter, if the RAID card in the HP D2D Backup System does not have an external SAS
connector (this depends on the model). External tape drives may be half-height or full-height. Rackmount
tape drives are installed in a rackmount enclosure, such as a 1U Rack, 3U Rack or a TapeArray.
Software and hardware requirements
Refer to http://www.hp.com/go/connect or http://www.hp.com/go/ebs for the latest connectivity
and compatibility information.
• If connecting to a Fibre Channel network, the HP D2D Backup System is supplied with the correct
FC card pre-installed. Cables are not supplied.
• If connecting to an Ethernet network, the HP D2D Backup System should be connected to a Gigabit
Ethernet network. 100 Base-T Ethernet will limit performance; 10 Base-T Ethernet will severely
limit performance.
• For backup and restore you need software that supports tape autoloaders and libraries. This soft-
ware resides on the host, not the HP D2D Backup System. The device may be used with the major
backup applications from HP, Symantec, EMC, Computer Associates and others.
Terminology
Autoloaders
An autoloader is a backup device that has a single tape drive and multiple storage slots. (A library
has multiple tape drives, see “Libraries” on page 24.) Each storage slot contains a cartridge that can
be allocated to a specific backup task; for example, one cartridge can hold Monday's data, another
can hold Tuesday's data, and so on. In this way, backup applications are able to implement tape
rotation strategies that accommodate differing backup requirements for daily, weekly, monthly, yearly
backups.
D2D Backup System HP D2D4112 21
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Backup devices and slots
Backup devices appear to the host as locally-attached tape devices, but physically, they use disk
space on the HP D2D Backup System which, as in tape terminology, is referred to as slots or cartridges.
The HP D2D supports the following emulation types: HP G2 Autoloader (1x8), HP MSL Library (2x24),
HP MSL Library (4x24). and D2DBS Generic Library (8 up to 144 slots). The emulation type determines
how many embedded drives and cartridge slots are available. For example, if you select HP MSL G3
Series (2x24), the device will emulate an MSL Library with two embedded tape drives and a possible
total of 96 cartridge slots. See also “Devices (Configuration)” on page 110.
When you configure your HP D2D Backup System with a tape library, the drive emulation type that
you select determines the amount of physical disk space that is made available for each configured
slot. LTO-2 defaults to 200 GB, LTO-3 defaults to 400 GB and LTO-4 defaults to 800 GB. This is the
equivalent of a tape library with multiple slots, each containing a 200, 400 or 800 GB cartridge.
Both tape spanning and, more importantly, flexible tape rotation strategies are possible.
Deduplication
Data deduplication compares blocks of data being written to the backup device with data blocks
previously stored on the device. If duplicate data is found, a pointer is established to the original
data, rather than storing the duplicate data sets. This removes, or “deduplicates,” the redundant
blocks. See also “Data deduplication” on page 26.
Emulation types
HP D2D products emulate a range of physical Tape Autoloaders or Tape Libraries. Supported emulation
types are listed below:
• HP 1x8 G2 Autoloader
• HP MSL2024 Library
• HP MSL4048 Library
• HP D2DBS Library
If it is supported by your backup application, HP D2DBS Library is the preferred emulation type to be
used because it does not emulate any physical library types in existence and is clearly identifiable
as a D2D device. It is the most flexible emulation type available; however, backup application support
varies by software vendor. See also “Emulation types for tape devices” on page 112.
Fibre Channel
Fibre Channel (FC) supports network connectivity over fibre optic cabling or copper wiring. FC has
a different set of standards and network connection protocol to Ethernet and different configuration
requirements. FC HP D2D Backup Systems may be connected to both a Fibre Channel SAN and an
Ethernet (as an iSCSI device) network. The FC connection is used only to transfer backup data from
the host to the HP D2D. Access to the HP D2D Web Management interface is always across an
Ethernet connection. See also “HP D2D Backup Systems and Fibre Channel” on page 65.
Hosts
A server that is being used to back up directly to the D2D system via iSCSI or Fibre Channel, this may
also be a backup application media server which can back up other servers on the network that do
not have a direct iSCSI or Fibre Channel connection to the D2D.
Before you start22
Page 23
Hosts on an Ethernet network
Each emulated backup device is uniquely mapped to an individual host; this is the network server or
PC that you wish to back up.
• The backup device appears to the host as a locally-attached tape autoloader or library.
• The backup device is accessed and managed from the backup software running on the host.
• The backup device is not visible to other devices on the network.
• Multiple servers may not back up to a single backup device.
Figure 3 on page 23 shows a configuration with a single host. The Installation wizard has been run
on Host 1. The HP D2D Backup System automatically generates a library for the host. The user may
specify the number of slots during installation.
Host3Host2 Host4 onwardsHost1
LAN
Library 1
HP StorageWorks D2D Backup System
Figure 3 Device configuration with one host
• By default, only one device is visible to the host, the library that has been configured for it during
installation. Data from each host goes to its corresponding library.
• Each backup device is visible only to the host for which it has been configured.
• A host may have multiple devices configured for it on the HP D2D Backup System, but this means
fewer hosts may be connected (not illustrated).
Figure 4 on page 24 shows a configuration with three hosts. The HP D2D Backup System can be
used to back up a maximum of 24 hosts. The Installation wizard automatically generates a library
for each host. The user may specify the number of slots during installation.
D2D Backup System HP D2D4112 23
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Library 1 Library 2 Library 3
Figure 4 Device configuration with multiple hosts
Hosts on an FC network
The host is the network server or PC that you wish to back up.
Host4 onwardsHost1 Host2 Host3
LAN
HP StorageWorks D2D Backup System
iSCSI
Libraries
Library devices on the HP D2D cannot be created for a specific host during installation; they must be
created using the Web Management interface. When you assign a library to a FC port (port 1 or
port 2) it becomes visible on the FC SAN. When you log in, you log in to the switch to which the host
is connected, which means that the library is visible to all other devices on the SAN. You can zone
your network so that only specific devices have access to it, but generally it is visible to all. See also
“HP D2D Backup Systems and Fibre Channel” on page 65.
On an Ethernet network the HP D2D Backup System is configured as an iSCSI device. This means
that the HP D2D Backup System plugs directly into the network, but it presents devices as
directly-attached SCSI autoloaders to host machines. In order to function, it requires an iSCSI initiator.
On Windows systems, this is normally downloaded by the Installation wizard, as described in
“Connecting and installing the HP D2D Backup System” on page 31. For more information about
iSCSI, see “Advanced installation” on page 53. Linux and UNIX users should also refer to the “Linux
and UNIX Configuration Guide” on the HP StorageWorks D2D Backup System CD-ROM for more
information.
A tape library is a backup device that has multiple drives and multiple storage slots. Each storage
slot contains a cartridge. The difference between an autoloader and a library is that a library can
support multiple tape drives whereas an autoloader only has one tape drive. This provides considerable
storage capacity and full support for tape rotation strategies. (It may be necessary to upgrade your
backup application to support libraries.)
Before you start24
Page 25
Mail slots (import/export elements)
A mail slot is a term borrowed from tape terminology to identify a dedicated slot that is used specifically
to import and export cartridges. They are sometimes called import/export elements by backup
applications. Backup applications that support this feature move cartridges from the mail slot when
the user runs an Export job, and look for cartridges in the mail slot when the user runs an Import job.
Physical tape drives
A physical tape drive is a tape drive that is attached to the HP D2D Backup System or the host
computer, so that data can be moved from the HP D2D Backup System and stored offsite. (It should
not be confused with the tape drive device that is attached to the library device on the HP D2D Backup
System (see “Devices (Configuration)” on page 110.)
RAID
RAID stands for Redundant Array of Inexpensive (or Independent) Devices, which is a data storage
scheme that divides data among multiple hard drives, increasing data reliability and throughput. The
HP D2D Backup System is a RAID 6 device, which offers the best combination of data protection and
capacity for disk arrays. It provides protection against double disk failures and failures while a single
disk is rebuilding.The unit also has an online spare disk in bay 12, which further enhances the reliability
of the product. If one disk fails, the online spare disk immediately takes its place. The failed disk
should always be replaced as soon as possible.
Replication
Replication is a standard term used to describe a way of synchronizing data between hardware in
two physical locations. HP D2D Replication allows users to replicate data from cartridges on one HP
D2D Backup System to mapped slots on another HP D2D Backup System on a remote site or the same
system. Once configured (using the simple-to-use wizard), replication occurs automatically, ensuring
data is mirrored from the source to the target HP D2Ds. Deduplication ensures that network traffic is
minimized. See also “Configuring and using replication” on page 75.
Tape Attach
If you attach a supported, physical tape library or tape drive directly to your HP D2D Backup System,
you will be able to copy or export data to the physical tape library or tape drive so that backups can
be stored offsite. This is an important requirement for Disaster Recovery strategies. The main difference
between copy and export is that copied data remains on the HP D2D Backup System; exported data
is removed from it, but can be imported easily when required. These functions are grouped under the
Tape Attach section of the Web Interface. Please see “Using Tape Attach” on page 147 for more
details about working with Tape Attach.
Storage capacity
Physical storage
The physical storage capacity of the HP D2D Backup System is 12 TB (12 x 1 TB) or 24 TB (24 x 1
TB).
D2D Backup System HP D2D4112 25
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However, in order to ensure a high level of data integrity, the disks use RAID 6 protection. This reduces
the available capacity but ensures that, in the event of a disk failure in the device, there will be no
data loss.
The 12th disk is a hot spare disk. If a disk fails, the hot spare disk will immediately be used to replace
it. The RAID rebuild process occurs automatically. The failed disk should be replaced as soon as
possible.
Actual storage capacity is approximately:
• 9 TB for the HP D2D Backup System
• 18 TB for the HP D2D Backup System with Capacity Upgrade Kit
Data deduplication is enabled by default for each library device. This eliminates duplicate data from
backups and means that more histories of data can be stored and retained for longer on each library.
See also “Data deduplication” on page 26.
If you have the 12–disk model, it is possible to extend disk space by purchasing and installing the
12–disk Capacity Ugrade Kit. This doubles the storage capacity. Other options for creating space
are:
• Review your backup jobs to see if you can reduce the size of backup or retention time.
• Use the backup application job settings to overwrite or erase data.
• Export cartridges to physical tape.
Tape rotation strategies
Tape rotation strategies determine when backups are run, the number of cartridges that are required
and how they are reused. The HP D2D Backup System is a very flexible device that can easily be
incorporated into most tape rotation strategies. If your organization does not yet have a tape rotation
strategy in place, see for example configurations.
Data deduplication
Data deduplication compares blocks of data being written to the backup device with data blocks
previously stored on the device. If duplicate data is found, a pointer is established to the original
data, rather than storing the duplicate data sets. This removes, or “deduplicates,” the redundant
blocks. The key part of this is that the data deduplication is being done at the block level and not at
the file level which reduces the volume of data stored significantly.
Before you start26
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Figure 5 Data stored after deduplication
In actual practice, data deduplication is often used in conjunction with other forms of data reduction
such as conventional data compression to offer the greatest reduction in data volume stored.
Technology types
There are a number of technology types that use different deduplication algorithms. The HP D2D
applies on-the-fly deduplication to chunks of backup data as they are written to the unit. It does not
matter which application was used to create the backup. For further information about deduplication
techniques and relative benefits, refer to the white papers at http://www.hp.com.
Data deduplication and the HP D2D
Data deduplication is applied per library device. When you configure the library, it defaults to
deduplication enabled. If you disable it, deduplication cannot be selectively applied to any data on
the library device. Compression is also disabled, if deduplication is disabled.
A library is associated with a host server and deduplication allows a greater amount of backup history
to be stored for that host. A larger number of full backups can be achieved, which makes possible a
rotation strategy with a longer retention history. It does not increase the number of host servers that
may be connected. The deduplication factor that has been applied to a library device is calculated
and displayed on the Web Interface. This figure is dynamic, it updates automatically as more data
is written to the library.
Benefits of HP D2D deduplication
The main benefit is that it is possible to store more data and retain data for longer on each cartridge
within a library. The host using the library device has access to a greater depth of historical data that
would otherwise have been archived offline.
Deduplication:
• Provides efficient use of storage capacity by eliminating duplicate data
• Reduces disk expenditures by reducing storage space required. You can get more backups for
each host on the same size of storage (HP D2D device)
• Prolongs disk data retention periods
• Reduces the volume of data that must be sent across a WAN for remote backups, replication, and
disaster recovery – reducing both risk and operational costs
D2D Backup System HP D2D4112 27
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See “Configuring and using replication” on page 75 for more information about replication.
Deduplication and compression
Compression is applied as part of deduplication. You can expect 1.6:1 compression even on the first
backup where no (or only a small amount of) deduplication can occur. If you disable deduplication,
see “Devices (Configuration)” on page 110, no compression is applied to data on that device.
Tape rotation example with data deduplication
The two most significant factors affecting the deduplication ratio for backup are:
• How long do you retain the data?
• How much data changes between backups?
The following example shows projected savings for a 1 TB file server backup.
Retention policy
• 1 week, daily incrementals (5)
• 6 months, weekly fulls (25)
Data parameters
• Data compression rate = 2:1
• Daily change rate = 1% (10% of data in 10% of files)
Typical savings
The following table illustrates a reduction of approximately 11:1 in data stored. In practice, assuming
1.25 TB is available for backup for this library, this means:
• Without data deduplication: only two weeks of data retention is possible before it is necessary to
archive data offline.
• With data deduplication: even after six months less than 1.25 TB of disk space has been used.
The following table illustrates how this affects the space required to store the data over 25 weeks.
The figures are used to generate the graph shown after the table.
Table 2 Data deduplication savings, example 1
Data stored with deduplicationData stored normally
500 GB500 GB1st daily full backup
5 GB50 GB1st daily incremental backup
5 GB50 GB2nd daily incremental backup
5 GB50 GB3rd daily incremental backup
5 GB50 GB4th daily incremental backup
5 GB50 GB5th daily incremental backup
Before you start28
25 GB500 GB2nd weekly full backup
Page 29
14000
12000
10000
8000
6000
Space in GB
4000
2000
0
25 GB500 GB3rd weekly full backup
25 GB500 GB25th weekly full backup
1,125 GB12,750 GBTOTAL
Space saving with deduplication
Without
Dedupe
With
Dedupe
12345678910111213141516171819202122232425
End of week
Figure 6 Space saving with deduplication
D2D Backup System HP D2D4112 29
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Before you start30
Page 31
2 Connecting and installing the HP D2D
Backup System
In this chapter:
• “Installing the rail kit” on page 31
• “Connecting the hardware” on page 35
• “Supported network configurations” on page 37
• “Powering on the HP D2D” on page 39
• “Software installation, discovery and configuration” on page 39
• “Web browser settings” on page 44
Installing the rail kit
Overview
This section contains instructions for installing HP rack rails into square and round hole racks for the
HP D2D (1U) and HP D2D (2U) Backup Systems.
Kit contents
• Two rack rails (left and right)
• Mounting hardware for square and round hole racks
• Two tie wraps
NOTE:
If mounting the HP D2D into threaded hole or telco racks, please see http://www.racksolutions.com
to purchase mounting hardware.
Important safety information
See also the Safety Booklet on the HP StorageWorks D2D Backup System CD-ROM.
CAUTION:
Electrostatic discharge (ESD) can damage electronic components. Be sure you are properly grounded
(earthed) before beginning any installation procedure.
D2D Backup System HP D2D4112 31
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Installation guidelines
This installation is to be performed by qualified individuals who have knowledge of the procedures,
precautions, and hazards associated with equipment containing hazardous electrical circuits.
WARNING!
These rails, when installed, form only a shelf for the server to rest on. The server is not attached to the
rail by any other means. Use extreme caution when pulling the server out from the rack; it can slip
and fall, causing damage to the server or injury. HP is not responsible for any damage or injury
caused by the mishandling of the server.
WARNING!
Ensure that the rack is level and stable before working on the rack. Be sure the leveling jacks (feet)
extend to the floor and that the full weight of the rack rests firmly on the floor.
WARNING!
Ensure that the rack has anti-tip measures in place. Such measures may include floor-bolting, anti-tip
feet, ballast, or a combination of these as specified by the rack manufacturer and applicable codes.
WARNING!
Ensure that sufficient personnel are on hand to support the product(s) during the installation process.
Use of the appropriate lifting device is recommended as an installation aid.
WARNING!
Always load the rack from the bottom up. Load the heaviest items in the rack first. This makes the
rack bottom-heavy and helps prevent it from becoming unstable.
WARNING!
Do not overload the branch circuit that provides power to the rack. The total rack load should not
exceed 80 percent of the branch circuit rating.
Mounting the server
1. Position left and right rack rails at the desired 'U' position in the rack.
Connecting and installing the HP D2D Backup System32
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NOTE:
The rails can be adjusted to fit the rack.
2. Secure rack rails to the front and back rack columns using screws. Make sure that the shoulders
of the screws fit inside the square or round holes of the rack.
NOTE:
If installing rails into a square hole rack, use larger-sized shoulder screws and pins for mounting.
If installing rails into a round hole rack, use smaller-sized shoulder screws and pins for mounting.
Figure 7 Attach the rails to the rack columns
3. Slide the HP D2D into position on the rails.
IMPORTANT:
The label on the top of the HP D2D contains useful identity information, such as the MAC address
and default network name. Make a note of this information before you install the HP D2D in the
rack.
D2D Backup System HP D2D4112 33
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Figure 8 Insert the HP D2D server into the rack
NOTE:
The rear ends of the rails have a CTO bracket that must overlap the chassis tab in order to secure
the HP D2D to the rails.
Figure 9 CTO bracket location
4. Secure the HP D2D to the rack rails using thumbscrews on the front bezel.
Connecting and installing the HP D2D Backup System34
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Figure 10 Secure the HP D2D to the rack
5. Using the holes provided in the rear rack rails, install tie wraps and route external cable as re-
quired.
NOTE:
For instructions on installing the Capacity Upgrade Kit, refer to the separate printed guide, supplied
with the product.
Connecting the hardware
Figure 11 Network and power connectors
1. Use the supplied power cords to connect the HP D2D Backup System to the main power supply.
This HP-approved cord is appropriate for your specific geographic region.
The HP D2D Backup System has a redundant power supply. Make sure that both power cords
are connected.
For detailed safety information, see the Safety Guide on the HP StorageWorks D2D Backup
System CD-ROM.
2. LAN port 1 connector, must be connected1. Power connectors
4. Fibre Channel card with optical ports3. LAN port 2 connector
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2. Use any CAT-5E network cable (also supplied with the product) to connect to a Gigabit network
switch. 100 Base-T Ethernet will limit performance; 10 Base-T Ethernet will severely limit
performance. See also “Dual network ports” on page 37.
NOTE:
The Web Management Interface is used to configure devices and it requires an Ethernet connection.
LAN Port 1 (the lower LAN port on the rear of the HP D2D) must always be connected, even if you
are using the FC ports to back up and restore data to the HP D2D.
NOTE:
The HP D2D also supports direct connection of a monitor and keyboard. Please refer to
“Using the system console to discover the HP D2D” on page 56 for more information about this.
Connecting to the Capacity Upgrade Kit (optional)
Install the rail kit and expansion module immediately below or above the HP D2D Backup System,
as described in “Capacity upgrade” on page 197.
1. To ensure correct keying, first connect the supplied cable to the IN connector on the rear of the
Capacity Upgrade Kit.
2. Connect the other end of the cable to the port labeled “Port 2E” on the SmartArray RAID PCI-e
card on the rear of the HP D2D Backup System.
3. Use the supplied power cords to connect the Capacity Upgrade Kit to the mains power supply.
Connecting and installing the HP D2D Backup System36
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Figure 12 Cabling the Capacity Upgrade Kit
Supported Ethernet configurations
Ethernet network connection
IPv4 and IPv6 network protocols
The HP D2D supports both IPv4 and IPv6. Setup and configuration will default to IPv4, if the network
is configured to support it. On an IPv6–only network, it is normally sufficient to enter the IPv6 MAC
Address (found on the label on the top of the unit) when running the Installation Wizard. However,
if this does not work, you can use the system console, as described in
“Using the system console to discover the HP D2D” on page 56.
Dual network ports
The two physical network ports provide three network configuration modes:
• Single Port Configuration: The HP D2D is connected to one network only; only one network port
is used (Port 1).
• Dual Port Configuration: The HP D2D is connected to two different networks. Both network ports
are used.
• High Availability Dual Port Configuration: Both network ports are used, but the two ports are bound
together.
2. IN connector1. Power connectors
4. Port 2E connector3. Power on/off button
Single port configuration is the default mode, but it may easily be changed from the Web Management
Interface. If dual port configuration is required, the networks must be on different sub-nets.
The High Availability mode provides increased bandwidth, but both network ports must be connected
to the same switch, which must support port bonding.
D2D Backup System HP D2D4112 37
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DHCP and static IP addressing
r
DHCP network addressing is enabled by default as long as you are connecting the HP D2D as an
IPv4 device; this means that an IP address and other network settings are assigned automatically
when you connect the HP D2D Backup System to an IPv4 network that has a DHCP server. If preferred,
you can use static IP addressing and assign settings manually during the installation process. If you
are connecting to an IPv6–only network, it is normally sufficient to enter the IPv6 MAC Address (found
on the label on the top of the unit) when running the Installation Wizard.
The HP D2D Backup System should be on the same logical and physical network as the host machine
connecting to it. This is normally the case because, typically, the HP D2D Backup System is connected
to the same Gigabit network switch as the host machines backing up to it.
HP D2D on a Gigabit Ethernet network
The HP D2D Backup System is connected to a spare port on an existing Gigabit network switch.
This may be your main network, which is also used to connect a number of different types of devices,
such as PCs, servers, workstations and printers, or a dedicated backup network that is used solely
for clients that need to be backed up.
The configuration, illustrated in Figure 13 on page 38, is the simplest and most common configuration,
assuming that Gigabit networking is already in place, and requires no additional hardware. The only
disadvantage to the configuration is that a high volume of traffic may impact network performance
during backup and backups may take longer to complete. However, if backups are scheduled to run
outside of normal business hours, the volume of data traffic is unlikely to be a problem.
Server
Supplied cable
Server
Switch
LAN
Serve
HP StorageWorks D2D
Backup System
Figure 13 Connecting to a business server on the main network
In some environments, backup data is kept separate from day-to-day office network traffic, as illustrated
in Figure 14 on page 39. There is a separate, dedicated IP network for all hosts that need data to
be backed up.
Connecting and installing the HP D2D Backup System38
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Switch
r
ServerServer
LAN
Serve
Supplied cable
Figure 14 Connecting to a dedicated backup network
Powering on the HP D2D
NOTE:
If you have installed the Capacity Upgrade Kit, power it on first. You may need to hold down the
power on button (on the rear of the unit) for a few seconds.
Press the Power on button on the front of your HP D2D Backup System. The normal boot sequence
takes approximately 2 minutes. On power up the HP D2D Backup System runs its fans at high speed
for approximately 10 seconds before returning to normal speed.
Storage Network
HP StorageWorks D2D
Backup System
Figure 15 Powering on the HP D2D Backup System
1. Power On button
Software installation, discovery and configuration
There are three stages to installation:
• Install all the required drivers
• Discover and configure the HP D2D Backup System on the network
D2D Backup System HP D2D4112 39
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• Create a base configuration to get started (This is not possible if you are configuring only FC
devices on the HP D2D Backup System)
UNIX and Linux users should download the latest patches for their operating system and refer to the
“Linux and UNIX Configuration Guide” on the HP StorageWorks D2D Backup System CD-ROM for
configuration instructions.
Installation wizard for Windows users
For Windows users, the recommended way to set up the HP D2D Backup System network is to run
the Installation wizard from the HP StorageWorks D2D Backup System CD-ROM, particularly if you
are configuring the host for the first time.
The HP D2D Backup System can be used to back up a maximum of 24 hosts. You should run the
Installation wizard on each host that will provide a source of data for backup. The wizard configures
the software components needed to connect from the host and use the HP D2D Backup System. The
host may be a server, workstation or PC.
Running the Installation wizard
NOTE:
You must have the necessary administrative rights on the host to run the Installation wizard successfully
and the host should be connected to the Internet in case it is necessary to download the Microsoft
iSCSI Initiator.
The host server on which you are installing the D2D must be on the same subnet in order for Discovery
to work. If it is on a different subnet, refer to “Advanced installation” on page 53 for instructions on
manually configuring it.
1. Insert the CD-ROM supplied with your HP D2D Backup System into the host machine. It should
launch automatically. If it does not, locate the D2DInstallationWizard.exe file and run it manually.
Connecting and installing the HP D2D Backup System40
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2. Select Start the wizard and follow the onscreen instructions to step through the installation,
normally by pressing Next.
The Installation wizard will, if possible, configure all the software components required for setup
and use of the HP D2D Backup System. Use the Wizard help if you need more information.
• Install drivers: These allow your system to recognize the tape medium changer and drive
devices created on the HP D2D Backup System.
• Discover network devices: This allows you to locate your HP D2D Backup System on the network
and configure network settings. If you have multiple devices on your network, a list is displayed
so that you can select the required HP D2D Backup System.
If the Discovery process does not find your appliance and you are accessing through a firewall,
you may need to temporarily disable the firewall or open UDP ports 8105 and 8106 and
retry.
When the configuration page for the device is displayed, DHCP is enabled by default for
IPv4 networks. If you wish to use static IP addressing, disable DHCP and enter the IP address
details.
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TIP:
If more than one HP D2D Backup System is being configured at the same time, it may be
useful to physically identify a D2D device. Use Beacon mode to flash the LED on the selected
device.
For IPv6–only networks you must enter the MAC address of the HP D2D. You will find the
MAC address on the label on the top of the unit. The wizard translates the MAC address into
a valid IPv6 address for your network. If it is unable to do this, refer to
“Using the system console to discover the HP D2D” on page 56.
• Create desktop shortcut to the Web Management Interface.
Connecting and installing the HP D2D Backup System42
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• Create base library device on the HP D2D:
If you are configuring the HP D2D as an iSCSI device, this step retrieves and installs the Microsoft iSCSI initiator, connects this host to the HP D2D Backup System and creates and configures a library. If you are configuring the HP D2D as an FC device, this step is not relevant
and is omitted. This means that no base library device is created for the host; you must do
this after installation from the Web Management Interface, see
“To create a new device” on page 113.
3. Run the Installation wizard on any other hosts that are to be backed up—24 is the maximum.
On running the wizard on subsequent hosts, you only need to select the HP D2D Backup System;
its network settings have already been assigned.
The HP D2D Backup System does not appear as a device under My Computer and it is not
mapped to a drive letter (although it can be seen as a tape drive (1) and medium changer (2)
from Device Manager). Use a backup application on the host machine to back up and restore
data.
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Recommended web browser settings
The web browser used to communicate with the D2D Backup System must have Active Scripting or
JavaScript enabled. If it does not, some of the browser buttons may not be displayed.
Internet Explorer 7.X
1. Click on the Tools button located in the upper right part of the screen (next to the gear icon).
2. Select Internet Options.
3. Click on the Security tab.
4. Click on the Custom Level... button.
5. Set the option Active scripting to Enable and click OK.
6. Click Yes.
7. Refresh the page.
Internet Explorer 6.X
1. Select Tools from the top menu.
2. Select Internet Options.
3. Click on the Security tab.
4. Click on the Custom Level.
5. Scroll down until you see the section labeled Scripting.
6. Under Active scripting select Enable and click OK.
Mozilla Firefox 1.5, Firefox 2.X and Firefox 3.X
1. Select Options from the Tools menu.
2. Click on Content.
3. Check the box next to Enable JavaScript.
4. Click OK.
5. Refresh the page.
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3 Attaching a physical tape library or tape
drive (optional)
In this chapter:
• “Hardware requirements” on page 45
• “Tape device installation overview” on page 46
• “Removing the covers” on page 46
• “Installing the HBA” on page 47
• “Replacing the cover” on page 51
• “Connecting an external or rackmount tape device” on page 51
Hardware requirements for Tape Attach
A tape storage device may be attached directly to your HP D2D Backup System, allowing you to store
backups offsite.
To use this facility you need:
• An HP StorageWorks Ultrium tape storage device, such as a tape library or tape drive. This should
be an external device or a 1U or 3U rackmount enclosure for internal devices. The appropriate
cables for the rackmount shelf must be used. Both SAS and SCSI half-height and full-height tape
storage devices are supported.
• A host bus adapter, HBA, for the tape device connection (because there are no embedded SAS
or SCSI ports). You must purchase and install the HBA before connecting the tape storage device.
NOTE:
Physical tape storage devices attached to the HP D2D Backup System can only be accessed by the
HP D2D Backup System, using the Tape Attach pages. They do not appear as attached network
devices to the host system.
Supported devices
The following tape storage devices are supported:
• HP 1x8 G2 Autoloader (1 drive, 8 slots, 1 mail slot)
• HP MSL 2024 Tape Library (2 drives, 24 slots, 1 mail slot)
• HP MSL 4048 Tape Library (4 drives, 48 slots, 1 mail slot)
• Library-embedded or standalone HP StorageWorks Ultrium Tape Drives (LTO-2, LTO-3 and LTO-
4)
Please refer to http://www.hp.com/go/connect or http://www.hp.com/go/ebs for a list of all
supported host bus adapters and tape storage devices. Please refer to “Using Tape Attach” on page
147 for more information about transferring data to the storage device.
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Tape device installation overview
Before connecting a storage device, you must install an HBA. The instructions in this chapter provide
the following information that is specific to the HP D2D Backup System.
1. If you have already powered up the HP D2D Backup System, power it down and disconnect the
cables before you start; each step is expanded in separate sections after the summary below.
2. Remove the top cover from the HP D2D Backup System.
3. Install the HBA.
4. Replace the top cover on the HP D2D Backup System.
5. Connect an external or rackmount storage device.
Removing the top cover
1. If you are installing the storage device as part of the initial installation, go to step 3. If you have
already powered on the HP D2D Backup System, it must be shut down before you start. Make
sure there are no backup or restore jobs in progress and that no future jobs are scheduled to
start whilst the system is shut down. Select Shutdown on the Web Management interface and
click Power Off to power down the HP D2D Backup System safely.
2. Disconnect the network cable(s) and the power cord(s) from the HP D2D Backup System.
NOTE:
If you are using the FC interface, disconnect all cables connecting the FC card to the Fibre
Channel Switch.
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3. You need to remove the top cover before you can remove or replace a server component.
• Loosen the captive screw (1) on the rear panel with a T-15 screwdriver.
• Slide the cover (2) approximately 1.25 cm (0.5 in) toward the rear of the unit and then lift
the cover to detach it from the chassis.
• Lift the top cover away from the chassis. (3)
Figure 16 Removing the top cover
Installing the HBA
There are three PCIe expansion slots on the system board; two full height and one low profile slot.
One full height PCIe slot already has the RAID controller card installed. If no FC card is installed, you
may purchase and install either a full-height or low profile PCIe card for Tape Attach.
NOTE:
FC products have the FC card in the other full-height PCIe slot. There is only one spare low profile
slot. This is the slot into which you must install the HBA for Tape Attach. If the HBA that you purchase
has a full-height bracket, you must first replace it with a half-height bracket (supplied with the
recommended HBA).
NOTE:
The drawings illustrate how to install the Tape Attach HBA only; the pre-installed RAID card is not
shown.
Removing the PCI Cage
1. Loosen the two captive screws that secure the PCI cage to the chassis with a T-15 screwdriver.
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2. Lift the PCI cage away from the chassis.
Figure 17 Removing the PCI cage
NOTE:
The pre-installed RAID card has a cable connecting it to the system board. It may be easier
to disconnect this cable while you are installing the new HBA. It may also be easier to
disconnect the FC card.
Removing the slot cover
1. Loosen the screw that secures the slot cover to the chassis. The HBA must be installed in the low
profile slot.
NOTE:
Before installing in the low profile slot ensure that the HBA is fitted with a low profile bracket
(supplied with the recommended HBA, if not already fitted).
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2. Remove the slot cover on the PCI cage.
CAUTION:
Do not discard the slot cover. If the expansion board is removed in the future, the slot cover
must be reinstalled to maintain proper cooling.
Figure 18 Removing the slot cover (low profile)
Installing the PCIe Card
1. Slide the expansion board into the slot, aligning the board with its matching connector. Firmly
press the board to seat it properly in the slot.
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2. Tighten the screw that secures the card to the PCI cage.
Figure 19 Installing the PCIe card (in the low profile slot)
Reinstalling the PCI Cage
1. Align the PCI cage to the system board expansion slot, and then press it down to ensure full
connection to the system board.
NOTE:
Be sure to reconnect any cables that you disconnected when you removed the PCI cage.
Figure 20 Reinstalling the PCI cage
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2. Tighten the two captive screws to secure the PCI cage to the chassis.
Figure 21 Securing the PCI cage
Replacing the top cover
• Reconnect the network cable(s) and the power cord(s).
NOTE:
If you are using the FC interface, reconnect all cables connecting the FC card to the Fibre
Channel switch.
Connecting an external or rackmount storage device
NOTE:
You can only connect an external or rackmount storage device, if you have already installed a
recommended HBA.
Connect the external or rackmount storage device, as described in the documentation accompanying
the storage device. Refer to the “User Guide” that is supplied with the storage device for more detailed
information about device usage and LED troubleshooting.
NOTE:
If you are connecting to a 1U or 3U rackmount enclosure for internal storage devices, the appropriate
cables for the rackmount shelf must be used. Please refer to the rack documentation for further details.
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Attaching a physical tape library or tape drive (optional)52
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4 Advanced installation
The Installation wizard is the recommended way to install the HP D2D Backup System, but it is possible
to install it manually. You may also need to run phases independently when troubleshooting. This
chapter describes:
• “Manual driver installation” on page 53
• “Using DHCP to discover the HP D2D (IPv4 only)” on page 54
• “Using the Discovery Engine to discover the HP D2D (IPv4 only)” on page 54
• “Using the system console to discover the HP D2D” on page 56
• “The Microsoft iSCSI Initiator” on page 59
• “Linux and UNIX iSCSI initiators” on page 64
Manual driver installation
Two drivers are required; an HP LTO Tape driver and a medium changer driver.
NOTE:
Certain backup applications require you to use their own drivers for both the tape device and medium
changer. For many applications these will be installed automatically during the software installation
process. If the backup software is already installed, you may need to manually update the drivers
after installing the HP D2D Backup System.
HP LTO Tape driver
The HP LTO Tape driver must be installed to allow your system to recognize the Ultrium tape devices
created by the HP D2D Backup System.
Tape drivers can be installed from the drivers directory on the HP StorageWorks D2D Backup System
CD-ROM, where they are supplied as an installer application and as driver files for manual installation.
Also check the HP website for driver updates at http://www.hp.com/support.
The tape drive is configurable as an LTO-2, LTO-3 or LTO-4 device. This is the default behavior of the
tape drive and there is no need and no way to change it on the HP D2D Backup System. It is important
not to confuse emulation type with cartridge size. Emulation type is totally independent from cartridge
size. The HP D2D Backup System allows you to pick whatever cartridge size you like (up to 1.6 TB).
Medium changer driver
No additional medium changer driver is required because Microsoft Windows provides a suitable
generic driver and all backup applications provide their own changer drivers.
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Using DHCP to discover the HP D2D Backup System (IPv4 only)
NOTE:
DHCP discovery is only supported if you are installing the HP D2D as an IPv4 iSCSI network device.
If you are installing the unit as an IPv6–only iSCSI network device, DHCP discovery is not supported.
If you are connecting the HP D2D Backup System to an IPv4 network that has a DHCP server, DHCP
addressing is enabled by default. The IP address and other network settings are assigned automatically
when you connect the HP D2D Backup System to the network. You only need to know the name of
the HP D2D Backup System to complete the installation and create a base library configuration. The
name is in the format D2DBS-<serial number> and can be found on the label on the front of the unit.
In the web browser type in: D2DBS-<serial number>
NOTE:
Depending on network settings, you may need to enter the full domain path.
Once the HP D2D Backup System has been discovered on the network, you must configure an iSCSI
Initiator on the host, so that the library devices on the HP D2D are visible to the backup application.
See also“The Microsoft iSCSI Initiator” on page 59.
Using the Discovery Engine to discover the HP D2D Backup
System (IPv4 only)
If your network does not have a DHCP server, the Discovery Engine allows you to locate the HP D2D
Backup System on your network and assign network settings, such as the IP address. It is the
recommended way to locate and configure the HP D2D Backup System on your network, if you are
using static IP addressing for an IPv4 iSCSI network device. It also allows you to select your required
base configuration and specify the number of slots for a library.
The Discovery Engine can be run as part of the Installation wizard or as a standalone utility from the
HP StorageWorks D2D Backup System CD-ROM.
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NOTE:
If the Discovery process does not find your appliance and you are accessing through a firewall, you
may need to temporarily disable the firewall or open UDP ports 8105 and 8106 and retry.
Beacon mode
The HP D2D Backup System supports a Beacon LED sequence, which helps a user identify which unit
is being configured, if several are connected to the network. See also “LEDs” on page 71.
If the HP D2D Backup System is new and not yet configured
When installing the HP D2D Backup System for the first time, this step must be completed successfully
before you can connect from your host. Select the appropriate HP D2D Backup System from the list
and make a note of its IP address because you will need this when you configure the iSCSI Initiator,
see also “Discovery tab” on page 61.
If the HP D2D Backup System has been configured incorrectly
If you cannot connect to the HP D2D Backup System using the Web Management interface, it may
have been configured incorrectly. Run the Discovery Engine to check the IP address of the HP D2D
Backup System and, if necessary, select it again from the list of available HP D2D Backup Systems.
If you still cannot connect to it, check that you have configured the iSCSI Initiator correctly, see also
“Discovery tab” on page 61.
If the network setup has been changed
If the network infrastructure changes, you may need to update the HP D2D Backup System network
settings to allow hosts to continue to connect. Run the Discovery Engine and change the network
settings in accordance with your new infrastructure.
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You can also use the Web Management Interface to modify these settings directly on the HP D2D
Backup System, as long as this is done before the infrastructure changes are made.
Once the network settings of the HP D2D Backup System have been changed, you must also change
the iSCSI Initiator for each host.
Using the console to discover the HP D2D Backup System (IPv4
and IPv6)
If you do not use the Installation Wizard or it fails, you can connect the system console directly to the
unit in order to find out the IP address.
To connect the system console
1. Connect the monitor cable to the VGA port on the rear of the unit.
2. Connect the keyboard cable to the PS/2 ports on the rear of the unit. Do not connect anything
to the USB ports.
Figure 22 System console connections on the HP D2D
1 and 2. PS/2 ports for system console keyboard and mouse
3. VGA port for system console monitor
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3. Power on the HP D2D and allow it to boot up until the console screen is displayed (see example
below). Select the Network... option from the left-hand Menu.
Figure 23 System console screen
4. Locate the IP address for the port(s) and make a note of it.
5. Use an iSCSI Initiator to enable the host to connect to devices on the HP D2D, see also
“iSCSI Initiator” on page 57. In the web browser on the host machine, type in the IP address of
the HP D2D to connect to it.
iSCSI Initiator
NOTE:
FC products may be configured with a mixture of FC and iSCSI attached devices. If you are configuring
your HP D2D to have iSCSI devices (for hosts attached via the LAN ports), this section is relevant.
However, if you are configuring it to have only FC network devices (attached via the FC ports), it is
not necessary; you must use the Web Management interface to create FC devices, see
“To create a new device” on page 113.
iSCSI is a protocol for sending SCSI commands via Ethernet. It defines how SCSI packets are translated
to Ethernet packets and connects to the required devices. An iSCSI initiator may be hardware or
software and should be running on each host. If the host does not have an iSCSI initiator, it will not
be able to connect to the library configured on the HP D2D Backup System and will not be able to
perform backups.
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The HP D2D Backup System supports the Microsoft software iSCSI initiator which can be retrieved
from the Microsoft website.
Figure 24 iSCSI Initiator download page
1, amd 64
2, ia 64
3, x86
Use with amd ® 64-bit processors and with Intel ® em64t processors, when running
a 64-bit version of the Windows operating system.
Use with ia-64 processors, such as Itanium and HP Integrity.
Use with 32-bit processors or 64-bit processors running 32-bit Windows, such as
Windows XP and Server 2003.
If you download the wrong version, it will not install. The simplest way of ensuring you download the
correct version is to run the Installation wizard from the HP StorageWorks D2D Backup System CD-ROM
because it automatically checks which is the appropriate version for your host.
NOTE:
The Microsoft Vista operating system includes the Microsoft iSCSI Initiator. It can be run from the
Control Panel in Classic Mode.
Manual iSCSI initiator installation
The Installation wizard could fail for the following reasons:
• The host machine does not have an internet connection
• Firewall restrictions prevent this process
• Microsoft has relocated the iSCSI initiator files to a different address on its website.
• The process times out due to a slow connection
• The maximum number of drives/libraries have been configured on the HP D2D
If the process fails:
1. On a machine that supports an external internet connection, go to the Microsoft website and
search on "iSCSI initiator"
2. Select the result that takes you to the Download page and choose the download that is appropriate
for your host.
3. Download the iSCSI initiator and install it on the host, accepting all the default settings.
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The iSCSI Initiator and Authentication
Authentication is not required for the HP D2D, but it is supported for those companies that have an
IT policy that requires them to use authentication. If this is the case, you will need to configure the
necessary fields on the iSCSI Initiator and also ensure that the corresponding information is supplied
in the Web Management Interface. This enables the Initiator to log into the target device on the HP
D2D and the target device to log into the Initiator.
The authentication method supported on D2D products is CHAP. It relies on a "secret" known only
to the target and initiator. The size of the CHAP secret is between 12 and 16 characters, and must
be entered in exactly the same format in both the Web Management Interface and the iSCSI initiator.
An 'Authentication Failure' message will occur if the same 'secret' and 'user name' information are
not entered into the iSCSI Initiator screen and the Web Management Interface. Further details on
authentication and CHAP can be found within standard iSCSI protocol documentation.
The recommended process if you wish to enable authentication is:
1. Create the devices on the Web Management Interface.
2. Set up the Targets in the iSCSI Initiator.
3. Connect to the devices using the CHAP user name and secret that you configured on the Targets
tab.
The Microsoft iSCSI Initiator
The Microsoft iSCSI initiator contains a number of tabs. This section describes the information that
must be provided in order to connect the host to a device on the HP D2D Backup System. It does not
provide a comprehensive description of all the tabs; please download the “User Guide” from the
Microsoft website for more information.
General tab
You do not normally need to make any changes on the General tab. The Initiator Node Name is
generated automatically, which guarantees that it will be unique on your network.
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Figure 25 General tab (iSCSI)
NOTE:
When you use the Web Management Interface to create an additional device for your host, you must
provide the iSCSI Initiator Name. This is the Initiator Node Name found on the General tab.
Authentication
If you wish to use mutual authentication (where target authentication is also required), click Secret on
the General tab and enter the appropriate string at the prompt.
NOTE:
IPSec Tunnel Mode is not currently supported on HP D2D products.
Figure 26 CHAP secret
The CHAP secret may be between 12 and 16 alphanumeric characters and should be exactly the
same string as you enter on the Web Management interface in the Target CHAP Secret field on the
Devices page. (See “Device parameters” on page 114.)
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Discovery tab
Figure 27 Discovery tab (iSCSI)
Click Add to enter target portals that will enable discovery of the device.
Figure 28 Add target portal
You must enter the IP address or fully qualified domain name of the HP D2D Backup System (for
example, myhpd2d.mydomain.com) to add it as a target portal for the host on the Discovery tab. Do
not change the Port; it should be 3260.
Targets tab
This tab contains a list of all available devices.
• If this is the first time that the iSCSI Initiator has been configured and the Installation wizard has
• If target devices have already been configured for the host in the past, they appear in the list; no
not been run, it will automatically create a library with the appropriate number of target devices
(the default is one loader and one tape drive).
more are created.
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When you run the iSCSI Initiator manually, new devices have a status of Inactive. You must log on to
the appropriate targets for your host. Remember that each library has at least two devices and you
must log onto each one separately. If the emulation type you have selected allows more drives, there
will be a target device for each drive.
NOTE:
If you are using mutual CHAP authentication, you set up the details when you log on to the target.
If you are using a dual port configuration, there will be two IP addresses in separate subnets for each
device. The iSCSI initiator will return both IP addresses as possible login addresses. If the default
choice does not work you can select a specific port. High Availability dual ports return a single IP
address. See also “Dual network ports” on page 37.
Figure 29 Targets tab (iSCSI)
We recommend that you also select the Automatically restore this connection when the system boots
option in the Log On... dialog.
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Authentication
When the Log On to Target prompt is displayed click on Advanced...
Enable CHAP logon information and enter the secret in the Target Secret box. This should be the same
string as you entered for the Initiator CHAP Secret on the Devices page of the Web Management
Interface. The User Name should match the Initiator CHAP User Name on the Devices page.
Figure 30 Advanced settings CHAP
If you want to use mutual authentication, which means that the target must also log on to the Initiator,
make sure that the Perform mutual authentication box is checked. You must also provide the Target
User Name and Secret on the Devices page in the Web Management Interface. See also
“Devices (Configuration)” on page 110.
Persistent Targets tab
The Persistent Targets tab shows the targets that have been configured to restore automatically on
reboot. During initial configuration, it is for information only. However, if you want to stop the host
automatically connecting to a device, you must select the device on this tab and Remove it. To
disconnect the device without rebooting, go back to the Targets tab, select the device, click Details
and log off.
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Figure 31 Persistent Targets tab (iSCSI)
Bound Volumes/Devices tab
No configuration is required on the Bound Volumes/Devices tab.
Linux and UNIX iSCSI initiators
An iSCSI initiator is embedded in the operating system. Please refer to the “Linux and UNIX
Configuration Guide” on the HP StorageWorks D2D Backup System CD-ROM for further information.
Make sure that you have downloaded the latest operating system patches before you configure your
system.
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5 HP D2D Backup Systems and Fibre
Channel
In this chapter:
• “Fibre Channel topologies” on page 65
• “Zoning” on page 65
• “Fibre Channel connection” on page 66
• “Fibre Channel (Configuration)” on page 67
• “Fibre Channel (Status)” on page 68
Fibre Channel topologies
The HP D2D Backup System supports a switched fabric fibre channel topology.
A switched fabric topology utilises one or more fabric switches to provide a flexible configuration
between several Fibre Channel hosts and Fibre Channel targets such as HP D2D Backup Systems.
Switched fabric configurations are implemented with Fibre Channel switches. Switches may be
cascaded or meshed together to form larger fabrics.
NOTE:
Other topologies will be supported at a later date. Please refer to http://www.hp.com/go/connect
or http://www.hp.com/go/ebs for the latest information.
Zoning
Due to complexities in multi-hosting tape devices on SANs, it is best to make use of zoning tools to
help keep the backup/restore environment simple and less susceptible to the effects of changing or
problematic SANs.
Zoning provides a way for servers, disk arrays, and tape libraries to only see what hosts and targets
they need to see and use. The benefits of zoning include but are not limited to:
• Limiting unnecessary discoveries on the HP D2D Backup System
• Reducing stress on the HP D2D Backup System and its library devices by polling agents
• Reducing the time it takes to debug and resolve anomalies in the backup/restore environment
• Reducing the potential for conflict with untested third-party products
Zoning may not always be required for configurations that are already small or simple. Typically the
bigger the SAN is, the more zoning is needed. HP recommends the following for determining how
and when to use zoning.
• Small fabric (16 ports or less)—may not need zoning.
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• Small to medium fabric (16 - 128 ports)—use host-centric zoning. Host-centric zoning is implemented
by creating a specific zone for each server or host, and adding only those storage elements to be
utilized by that host. Host-centric zoning prevents a server from detecting any other devices on
the SAN or including other servers, and it simplifies the device discovery process.
• Disk and tape on the same pair of HBAs is supported along with the coexistence of array multipath
software (no multipath to tape or library devices on the HP D2D Backup System, but coexistence
of the multipath software and tape devices).
• Large fabric (128 ports or more)—use host-centric zoning and split disk and tape targets. Splitting
disk and tape targets from being in the same zone together will help to keep the HP D2D Backup
System free from discovering disk controllers which it doesn't need to see. For optimal performance,
where practical, dedicate HBAs for disk and tape.
NOTE:
Overlapping zones are supported.
Fibre Channel connection
Backup and restore is supported over both Ethernet networks and Fibre Channel SAN. However, the
Web Management Interface always requires an Ethernet connection. When using FC to back up
hosts, you must still connect to LAN port 1 and should run the Installation wizard to connect to and
discover your HP D2D Backup System. The HP D2D is supplied with the correct FC card pre-installed.
It does not include FC cables.
1. Connect to LAN Port 1, as described in “Ethernet connection” on page 37.
2. Use a FC Multimode 50/125 (preferred) or 62.5/125 cable to connect the port(s) on the FC
card in the HP D2D to the Fibre Channel Switch.
3. The switch must have a multi-mode transceiver that supports speeds of 4Gbs (preferred) or 2Gbs.
4. Run the Installation wizard, as described in “Software installation, discovery and
configuration” on page 39.
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5. Run the Web Management Interface and create at least one library device. Be sure to select one
of the FC ports in the Port drop-down. For information about the other fields, see
“To create a new device” on page 113.
6. Configure zones on the FC Fabric/Switch.
7. The library device(s) should now be visible to the host. It may be necessary to perform a system
re-scan.
Fibre Channel (Configuration)
There is a page on the Web Management Interface that allows you to view and edit Fibre Channel
SAN settings, if necessary. It shows FC settings for each port on the FC card.
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To edit the FC configuration
Click Edit to make the fields editable for each port. Make the required changes and click Update.
• Speed: The default is Auto, which is the recommended option. For users who wish to fix the speed,
other available values are 4Gbs (preferred), 2Gbs or1Gbs (not recommended).
• Topology: The default is Auto, which is the recommended option. Loop, where the HP D2D Backup
System simulates a large number of FC devices, and N_Port, when a single target device creates
many virtual devices on a fabric attach port, are also supported. N_Port requires the switch port
to support NPIV (N_Port ID Virtualisation).
Fibre Channel (Status)
This page shows the details for all the FC devices that are configured on the HP D2D Backup System.
Select a library in the Devices list to view the connection details for the library's media changer and
drive(s).
This page is mainly for information and is useful in troubleshooting. It cannot be edited.
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Devices section
The details in this section reflect settings that were configured for this library when it was created on
the Devices page or when the Fibre Channel was configured. These settings can only be edited on
the appropriate Configuration page. If the Connection field for all devices on the same port is showing
Not Connected, check the physical FC connection. Examine the FC switch for visibility of the devices.
Some configuration changes may be necessary or the configuration may not be supported.
Library section
There is a row for each device associated with the library. The Device Type determines the number
of drives.
• The Port ID is three hexadecimal numbers and is known as the FC address by some manufacturers.
If the device is not connected, this field will be blank.
• The Port Type describes the nature of the connection and should match the Topology details.
• The Number of logins is the number of hosts currently with an active logical connection to this
device. To be used at least one active connection is required. Too large a number indicates that
the device has been zoned inappropriately and could cause issues.
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HP D2D Backup Systems and Fibre Channel70
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6 LEDs
In this chapter:
• “Front panel LEDs” on page 71
• “Rear panel LEDs” on page 73
• “Capacity upgrade kit LEDs” on page 72
• “Fibre Channel card LEDs” on page 73
• “Beacon mode” on page 74
Front panel LEDs
Figure 32 Front view of the HP D2D Backup System
1. HP D2D Beacon LED
2. System Health LED
3. and 4. LAN port LEDS
5. Power On button/LED
Hot-plug drive LEDs
The status of hot-plug hard drives installed in the server is indicated by the drive activity LED indicator
located on the front panel of the server.
Steady blue: identifies the unit
nl
Amber: Power off or system hardware fault
Steady green: Hardware is performing correctly
nl
Flashing red: fault with the power supply, such as
power supply or fan failure
Flashing green: network connection
nl
Off: no network connection or network not configured
Steady green: Power connected, device ready to use
nl
Steady amber: Device switched off or in hibernation
with power connected
nl
Off: No power connected
D2D Backup System HP D2D4112 71
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Figure 33 Drive LEDs
Steady blue: identifies a specific disk within the unit1. Disk beacon LED
2. Disk Online LED
Capacity upgrade kit LEDs
There are three LEDs on the front of the Capacity Upgrade Kit.
Steady green: Online, no activity
nl
Flashing green: Ongoing disk activity
nl
Steady amber: Disk has failed
nl
Flashing amber: Predictive disk failure
nl
Off: The disk is not a part of RAID (it could be a hot
spare or one of the disks on the second shelf thathave
not yet been built into the RAID)
Figure 34 Capacity Upgrade LEDs
1. Heartbeat LED
2. Fault LED
LEDs72
Green: System activity
nl
Off: No system activity
Amber: Fault condition
nl
Off: No fault condition
Page 73
3. UID button/LED
Rear panel LEDs
The LAN port on the rear panel has two LED indicators that allow monitoring of network activity.
Blue: Identified
nl
Flashing blue: Active remote management
nl
Off: No remote management
Figure 35 Rear panel LEDs
1. LAN network speed LED indicator
2. LAN activity status LED indicator
Fibre Channel card LEDs
If you have the Fibre Channel version of the HP D2D, there are three LEDs adjacent to each FC port.
Table 3 FC card LEDs
Steady green: The LAN connection is using 10
Mbps/100 Mbps link.
nl
Steady amber: The LAN connection is using a GbE
link.
nl
Off: No connection.
Flashing green: Ongoing network data activity.
nl
Off: No network data activity or no connection.
ActivityAmber LEDGreen LEDYellow LED
Power Off (OK)OffOffOff
Power on before or after firmware initializ-
OnOnOn
ation. Awaiting HBA firmware initialization.
FlashingFlashingFlashing
Power on after firmware initialization. Link
not initialized.
D2D Backup System HP D2D4112 73
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Firmware fault (OK)Alternately flashingAlternately flashingAlternately flashing
Off
On
nl
Flashing
Beacon mode
The HP D2D Backup System supports a Beacon LED sequence, which helps a user identify which unit
is being configured, if several are connected to the network. There is also a Beacon LED on the
individual disks so that you can identify a specific disk within the HP D2D.
Use the Network page of the Web Management Interface to turn Beacon Mode on and off for the
HP D2D Backup System. This turns the Beacon LED on the front and the rear of the HP D2D solid blue.
If you do not switch off Beacon Mode, it will continue for 5 minutes. See also
“Network (Configuration)” on page 120. You can also switch Beacon mode on and off by pressing
the LED on the front panel.
Use the Storage-RAID page of the Web Management Interface to turn Beacon Mode on and off for
a specific disk. This turns the Beacon LED on the disk solid blue.
OffOff
On
nl
Flashing
On
nl
Flashing
Off
OffOff
Connected at 1 Gb/s
nl
Activity at 1 Gb/s (OK)
Connected at 2 Gb/s
nl
Activity at 2 Gb/s (OK)
Connected at 4 Gb/s
nl
Activity at 4 Gb/s (OK)
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7 Configuring and using replication
NOTE:
When considering replication you are likely to be synchronizing data between different models of
HP D2D Backup Systems. Unlike the rest of this user guide, the examples in this chapter are not specific
to a particular model of HP D2D.
In this chapter:
• “Replication overview” on page 75
• “Preparing for replication” on page 76
• “Replication terminology” on page 76
• “Backup applications and target libraries” on page 82
• “Replication deployment strategies” on page 84
• “Seeding the Replication Target Appliance” on page 88
• “Replication licensing” on page 86
• “The Replication process” on page 88
• “Recovering a source appliance” on page 94
Replication overview
Replication is a standard term used to describe a way of synchronizing data between hardware in
two physical locations. HP D2D Replication allows cartridges in slots on a library device that has
been configured on one HP D2D Backup System (the Source Appliance) to be replicated to
corresponding mapped slots on a library device on another HP D2D Backup System (the Target
Appliance) at another location.
Replication is the process of creating an exact match on the target appliance of the specified data
from the source appliance. Data is always mapped at slot level. It is important to understand that no
history is held; the target appliance always mirrors as soon as possible the current state of the data
on the source appliance, which means that it is ready for use if the source library or appliance is
unavailable. But it does not hold archive versions and is not an alternative to conventional backup
with multiple restore points.
How is replication initiated?
Once you have set up a replication configuration between Source and Target HP D2D Backup Systems,
it is initiated automatically whenever a cartridge is returned from a drive to a slot that has been
configured for replication. A Configuration Wizard is provided to take you through replication
configuration steps.
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Replication and Tape Attach
Tape Attach provides very useful additional functionality with replication. Because it is a function of
the Web Management Interface, copy to tape for disaster recovery purposes can occur at the replication
Target Appliance in the Data Center without the need for any involvement from hosts on remote sites.
All scheduling and processing becomes a Back Office task. See also “Using Tape Attach” on page 147.
Remote Site Data Center
D2D Appliance
Host
Backup
Figure 36 Replication and Tape attach
Similarly, it provides an efficient option for replicating the first instance of data, which contains the
full backup, onto the Target Appliance without placing any load on network bandwidth. (Deduplication
ensures that subsequent replication tasks do not place much load on network bandwidth.) See also
“Seeding the Replication Target Appliance” on page 88.
D2D Appliance Tape Library
Copy
Replicate
Preparing for replication
There are 5 major considerations:
• Make sure you understand the basic concepts and terminology.
• Decide which deployment model is appropriate for your organization.
• Map your replication workflow and decide how the first backup will be seeded onto the target
appliance.
• Configure and monitor replication on the Web Management Interface
• Define your Disaster Recovery strategy if the Source Appliance fails.
Replication concepts and terminology
When configuring appliances for replication, there are some key concepts and terminology that it is
important to understand.
Replication elements
• Source Appliance: This is the D2D Backup System with the library device that is being used for
backup by a host server. The library device contains the slots that need to be replicated.
• Target Appliance: This is the D2D Backup System with the library device that contains the replicated
slots; it is an exact match of the library on the source HP D2D Backup System. This appliance
needs a replication license.
• Non-Replicating Library: This is a library on a D2D Backup System that has not been configured
as a source or target for replication cartridge slots.
Configuring and using replication76
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• Replication-Source Library: This is a library on a D2D Backup System that has been configured
for backups from a host server and has some or all of its slots configured to be replicated. This
library is visible to the host.
• Replication-Target Library: This is a library on a D2D Backup System that has been configured to
contain slots that are replicants of those in a source library. This library is not visible to the host,
unless you configure devices to make it visible. This facility should be used with care. See
“Backup applications and target libraries” on page 82.
A single HP D2D Backup System may host both Replication-Source and Replication-Target Libraries
and can, therefore, act simultaneously in both Source and Target Appliance roles. However, the host
server will only be able to access Replication-Source or Non-Replicating Libraries. All actions on
Replication-Target Libraries are controlled from the HP D2D Web Management Interface.
Remote Site Data Center
1. Host backing up
4. Non-Replicating Library
Figure 37 Replication elements
Fan In, Fan Out and job concurrency
When configuring replication on complex sites, for example many Remote Sites into a Data Center,
care must be taken when planning how appliances and libraries will be replicated. The key concepts
to understand are FAN OUT, FAN IN and Concurrency.
Fan OUT
When we talk about FAN OUT, we are considering the number of replication Target Appliances that
are supported from that Source Appliance (the HP D2D Backup System that contains the libraries that
you wish to replicate).
Each library on the Source Appliance may be mapped to only one library on the Target Appliance.
You cannot split slot mappings from one Source Library across several Target Libraries.
3. Target Appliance2. Source Appliance
6. Replication Target Library5. Replication Source Library
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NOTE:
Any number of slots within a Replication-Source library may be selected for replication to a
Replication-Target library. This selection is called a slot mapping collection and may be edited after
initial mapping creation.
For example: If you have backed up data on the source HP D2D that relates to specific regions, you
may want to replicate that data to regional data centers.
HP D2D400x and HP D2D41xx Series
Each HP D2D 400x or 41xx Series Source Appliance can replicate to up to four Target Appliances.
Americas Data Center
D2D Appliance
Remote Site
Americas
Library
D2D Appliance
Americas
Americas
Library
Library
Europe Library
Europe Library
Asia Data Center
Asia Library
D2D Appliance
Asia Library
Asia Library
Rest of the
Rest of the
World Library
World Library
Figure 38 Fan OUT example for HP D2D400x and D2D41xx
HP D2D250x Series
Europe Data Center
D2D Appliance
Europe Library
Other Data Center
D2D Appliance
Rest of the
World Library
Each HP D2D 250x Series Source Appliance can replicate to up to two Target Appliances.
Configuring and using replication78
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Americas Data Center
Remote Site
Fan IN
D2D Appliance
Americas
Library
Europe Library
D2D Appliance
Americas
Americas
Library
Library
Europe Library
Europe Library
Asia Library
Asia Library
Rest of the
Rest of the
World Library
World Library
Asia Data Center
D2D Appliance
Asia Library
Rest of the
World Library
Figure 39 HP D2D 2500 Fan OUT example
Of course, the above is for illustration only. If your Company policy does not dictate geographically
unique data centers, there’s no reason why you could not support all four libraries on a single Target
Appliance, as described in the FAN IN section.
When we talk about FAN IN, we are considering the number of replication Source Appliances that
are supported.
HP D2D250x Series
Each HP D2D 2500 Target Appliance can support up to 6 Source Appliances. Each library on the
Target Appliance must be uniquely mapped to one library on a Source Appliance. For example: a
company has 6 remote sites and a Data Center. Four of the remote sites have one library each that
requires replicating; two have two libraries each. This means that 8 libraries are required on the
Target Appliance in the Data Center.
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Remote Site 1
D2D Appliance
Remote Site 4
D2D Appliance
Data Center
D2D Appliance
Remote Site 2
D2D Appliance
Remote Site 3
D2D Appliance
Remote Site 5
D2D Appliance
Remote Site 6
D2D Appliance
Figure 40 HP D2D250x Series Fan IN example
HP D2D400x and 41xx Series
• Each HP D2D400x Source Appliance can support up to 16 Source Appliances. Each library on
the Target Appliance may be mapped to a maximum of 4 libraries on each Source Appliance. In
other words, up to four Source Libraries may be mapped into a single HP D2D 4000 Target Library.
• Each HP D2D41xx Source Appliance can support up to 24 Source Appliances. Each library on
the Target Appliance may be mapped to a maximum of 4 libraries on each Source Appliance. In
other words, up to four Source Libraries may be mapped into a single HP D2D 4100 Target Library.
For example: a research establishment has 5 remote sites, and a total of 10 Source Appliances. The
HP D2D400x or 41xx Series Target Appliance at the Data Center can easily support all 10 Source
Appliances.
• Remote Site 1 and Remote Site 4 each have one D2D Appliance and are running 4 projects. They
have configured a Source Library for each project on their HP D2D. Each set of 4 libraries can
be mapped to a single library on the Target Appliance at the Data Center. The ability to replicate
slots from up to 4 libraries on Source Appliances into a single Target Library on a Target Appliance
allows for some additional level of data deduplication across the backed up data; for example,
common operating system files.
• Remote Site 2 has two D2D Appliances, each with two Source Libraries. We can map the slot
mapping collections from those libraries into a single HP D2D 400x Series Target Library. . Source
Appliances 3, 4, 5 and 6 each have one library;
• Remote Site 3 has two D2D Appliances, one with three Source Libraries and the other with one
Source Library. Again, we can map the slot mapping collections from those libraries into a single
HP D2D 400x Series Target Library.
• Remote Site 5 has four D2D Appliances, each with one Source Library. We can map the slot
mapping collections from those libraries into a single HP D2D 400x Series Target Library.
Configuring and using replication80
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Remote Site 1
D2D Appliance
Remote Site 2
D2D Appliance1
D2D Appliance2
Remote Site 3
D2D Appliance1
Data Center
D2D Appliance
Remote Site 4
D2D Appliance
Remote Site 5
D2D Appliance1
D2D Appliance2
D2D Appliance3
D2D Appliance2
Figure 41 HP D2D400x and 41xx Series Fan IN example
Fan IN and slot mapping: You may not want to replicate all the slots in a library. For example, if you
have weekly full backups and daily incremental backups, you may decide to only replicate the slots
that contain the full backups. You make this selection when you configure replication in the Web
Management Interface and it is called a slot mapping. That mapping can only be replicated to a
single Target Library, but that Target Library can hold multiple slot mappings from different Source
Libraries, which may also be from different Source Appliances.
Job concurrency
There is no limit on the number of replication jobs that the Target Appliance can handle, but there is
a limit on the number of jobs that can run concurrently.
• An HP D2D 250x Target Appliance can run three incoming replication jobs concurrently; a Source
Appliance can run one outgoing replication job.
D2D Appliance4
D2D Backup System HP D2D4112 81
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• An HP D2D 400x Target Appliance can run eight incoming replication jobs concurrently; a Source
Appliance can run four outgoing replication jobs.
• An HP D2D 41xx Target Appliance can run 16 incoming replication jobs concurrently; a Source
Appliance can run four outgoing replication jobs.
Table 4 Fan In, Fan Out and job concurrency rules
Appliance Fan Out
Appliance Fan In
Library Fan Out
Library Fan In
Concurrent target
jobs
Concurrent source
jobs
Maximum number of Target appliances
supported by one Source appliance
Maximum number of Source appliances
supported by one Target appliance
Maximum number of Target libraries to
which a Source library may be mapped
Maximum number of Source libraries to
which a Target library may be mapped
Maximum number of concurrent incoming
replication jobs
Maximum number of concurrent outgoing
replication jobs
HP D2D 250x
D2D2502: 4
nl
D2D2503: 6
nl
D2D2504: 8
nl
nl
D2D2502: 2
nl
D2D2503: 3
nl
D2D2504: 4
nl
D2D2502: 1
nl
D2D2503: 1
nl
D2D2504: 2
HP D2D
400x
HP D2D
41xx
44All: 2
2416
11All: 1
44All: 1
168
44
Backup applications and target libraries
Replication Target libraries are not normally visible to the host, but you can configure devices to make
them visible to backup applications. It allows the backup application to:
• Move cartridges from storage slots to drives in the library
• Perform SCSI commands on the library device
• Perform read and verify operations on the cartridge (but not write)
• Perform load/unload operations on the tape device
WARNING!
This facility should be used with care. If the backup application can see both source and target libraries,
it will not be able to distinguish between the source library and the target library because the barcodes
are duplicated in the two locations.
Why make target libraries visible?
There are two occasions when it may be useful to make a target library visible to the backup application
on the host.
• To confirm that replication is working correctly and check the integrity of the replicated backup
by doing a test restore
Configuring and using replication82
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• To perform manual tape copy jobs to any tape device on the network using the backup application
instead of using the Web Management Interface to copy to a device connected to the HP D2D
Backup System)
IMPORTANT:
You cannot change data on a Target library cartridge; you may only load it temporarily into a physical
tape device to read it.
Best practices for using this feature
WARNING!
If you do not follow these best practices, unstable and possibly damaging results may occur. Cartridges
may be marked as unusable or the backup application may attempt to write to target cartridges.
• Ensure that no replication jobs to the selected target cartridge are in progress
• Ideally check that no backup jobs to the mapped source cartridges are scheduled
• Ensure that the backup application media server instance to be used is not within the same
cell/domain that can access the source cartridge
• Import the data on the target cartridge into the backup application (this operation must be repeated
after each replicate operation to the cartridge)
• Perform the desired operation on the cartridge, which may be:
• Verify the cartridge using the backup application either using a verify command or by perform-
ing a restore
• Copy the cartridge to a physical tape device connected to the media server
How is a target library made visible?
1. Create the replication mapping, as normal. See
“Mapping Configuration (Replication)” on page 132.
2. From the host that has access to the target library, on the Configuration-Devices page select the
target library in the Devices list.
3. Click Edit.
4. The Port defaults to None. Select an iSCSI or FC port, as appropriate.
5. If you have selected an iSCSI port, enter the iSCSI Initiator Name. These are the only fields that
you are allowed to edit for a target library.
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6. Click Update.
7. Now you can make the target library visible from other hosts. For iSCSI devices, log on to the
target library using the ISCSI Initiator. For FC devices, configure the FC fabric to make the host
visible. Target visibility persists even if the power fails or if the replication mapping is removed.
NOTE:
To remove target visibility, simply reset the Port to None. You will lose the iSCSI Initiator Node Name
and must reenter it to reinstate target visibility.
Replication deployment strategies
There are many deployment strategies; the following three are perhaps the most typical:
• Active to Passive
• Active to Active
• Many to One
Active to Passive example
In the following example there are two offices, each with an HP D2D Backup System. The HP D2D
Backup System in Office A is being used by the host server for backup and restore and the libraries
that have been configured on it are being replicated to matching libraries on the HP D2D Backup
System in Office B. A replication license is required only for the HP D2D Backup System in Office B.
That license covers all Replication-Target libraries on Appliance B.
Configuring and using replication84
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Office A
Host A1
Backup
SW
Backup/
Restore
D2D Appliance A
Library A1
Library A2 Library B2
Figure 42 Active to Passive replication example
Active to Active example
In the following example there are again two offices, each with an HP D2D Backup System. The HP
D2D Backup System in Office A is being used by the host server for backup and restore and all of
the cartridges on the Replication-Source library are being replicated to matching slots on a
Replication-Target library on the HP D2D Backup System in Office B. However, there is also a single
host backing up to six cartridges on another library on the HP D2D Backup System in Office B. Two
of those cartridges are configured to replicate to a Replication-Target library on the HP D2D Backup
System in Office A. A replication license is required for both HP D2D Backup Systems.
Office A
Host A1
Backup
SW
Backup/
Restore
D2D Appliance A
Library A1
Office B
D2D Appliance B
Library B1
Replicate
Replicate
Office B
D2D Appliance B
Library B1
Replicate
Host B1
Figure 43 Active to active replication example
Many to One example
In the following example a company has two remote offices and a central data center. There are
small HP D2D Backup Systems in each remote office which host Replication-Source Libraries for backup
from local host machines. In the data center there is a larger D2D Backup System that is used solely
to host Replication-Target Libraries for the remote offices. A replication license is required only for the
HP D2D Backup System in the Data Center. That license covers all Replication-Target libraries.
This is also a good example of slot mapping. Library 2 on the Target Appliance is being used as a
Replication-Target Library by Replication-Source libraries in Office A and Office B. The
Replication-Source library in Office A is replicating two slots (colored red), while the Replication-Source
library in Office B is replicating five slots (colored red).
Library A2
Replicate
Library B2
Backup/
Restore
Backup
SW
D2D Backup System HP D2D4112 85
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Office A
Host A1
Backup
SW
Backup/
Restore
D2D Appliance A
Library A1
Data Centre D
D2D Appliance D
Library D1
Replicate
Host A2
Backup
Office B
Host B1
Backup
Host B2
Backup
SW
SW
SW
Backup/
Restore
Backup/
Restore
Backup/
Restore
Library A2
D2D Appliance B
Library B1
Library B2
Replicate
Replicate
Replicate
Figure 44 Many to one replication example
Library D2
Library D3
Replication Licensing
The Replication License is a single software license; it is unique to a single HP D2D Backup System
and is required on every appliance that will be used as a Replication Target. If you wish to replicate
data to multiple HP D2D Backup Systems, you require a separate license for each target appliance,
appropriate to the model type, and must repeat the activation process for each HP D2D Backup
System.
NOTE:
The Replication license can only be used on the model for which it was purchased. For example, the
Replication License for a D2D250x series can only be used on a D2D250x Backup System. It cannot
be used on a D2D4xxx series.
Before you start
To activate your license you must first obtain a permanent License To Use (LTU) from the HP Licensing
website and then use the HP D2D’s Web Management Interface to apply the LTU, activate the
replication feature and complete the licensing process. The HP Licensing website will ask you for:
Configuring and using replication86
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• The HP entitlement order number for the HP D2D Replication license (found on the entitlement
certificate)
• The unique HP D2D Backup System serial number (found on the label on the top of the unit)
• Standard registration information, such as name and contact details
Online LTU retrieval is the recommended method for license redemption, but there is also a License
Key Request Form that you can submit by post or fax. If you choose to complete this form instead of
redeeming your license from the HP Licensing website, please be sure to include your HP D2D Backup
System serial number on the form.
NOTE:
The LTU is tied uniquely to the serial number of your HP D2D hardware. If your hardware serial
number changes (by swapping out the unit motherboard), the LTU must be transferred to the new
hardware via the HP Licensing website. A new LTU is generated, which must then be applied and
activated via the Web Management Interface on the repaired/replaced system.
Creating the LTU
1. Check that your D2D system firmware is at the latest revision to ensure that it has the replication
feature option on the HP D2D’s Web Management Licensing page. The latest firmware is available
from the Software & Driver Downloads pages on http://www.hp.com. Download and upgrade
the D2D Backup System firmware as required.
2. Make sure you know both the HP entitlement order number (found in the License kit) and the
product serial number (found on the label on the top of the unit or from the Web Management
Interface).
3. Go to the HP Licensing website at http://www.webware.hp.com and follow the instructions.
4. This creates a unique LTU (License to Use) as an alpha-numeric string. The option of saving the
LTU as a .DAT file is recommended - this can also be emailed to the registered license owner's
email address or you can use Cut and Paste to copy it to a temporary file.
Applying the LTU
1. Log on to the Web Management Interface and select the License web page from Settings.
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2. If you have saved the LTU as a .DAT file, click Upload license file and use the Browse option to
locate the file. Click Upload.
If you used email or a temporary file, cut and paste the string exactly as you obtained it from the
HP Licensing website. and click Enter LTU string.
The Replication process
All Replication status and configuration pages are available from the Replication tab on the Web
Management Interface and are described in Chapter “The Web Management Interface ” on page 107.
This section explains the various stages in the Configuration process and how you use the Replication
wizard to configure mappings.
Seeding the Replication Target Appliance
Data deduplication must be enabled on a library that is being used for replication. This ensures that
the amount of data to be replicated is minimized and the impact on network traffic is negligible.
However, the benefits of deduplication apply only after the first full backup. The first synchronization
of the cartridges will require significant bandwidth. The same applies in reverse, if you need to recover
a Target cartridge from a Source cartridge. Therefore, there is an advantage to being able to accelerate
the replication of the first full backup. This process is known as seeding.
As part of the deployment strategy, it is important to decide how the first full backup will be seeded.
There are three main options:
• This option does not use seeding, instead we simply allow the first synchronization to take place
over the WAN. If required, you may choose to limit the bandwidth available for the replication
job from the Local Settings on the Web Management Interface, see
“Local Settings (Replication)” on page 137. This could take a very long time to complete and may
not complete before the next scheduled backup to the slot being replicated.
Configuring and using replication88
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• If the Target Appliance is not yet in use, it may be possible to colocate the Source and Target
Appliances on the same site LAN to perform the initial replication locally on a high bandwidth
link and then ship the appliance to the Data Center.
• If the Target Appliance is already in use, use the Library or Tape Attach Copy functionality to
create a physical cartridge that can be shipped to the site of the Target Appliance and imported.
You only need to seed with one full backup. See “Using Tape Attach” on page 147 for more information
about using Tape Attach with HP StorageWorks Tape Libraries or Tape Drives. See
“Recovering a source appliance” on page 94 for more information about using seeding with Replication
Recovery.
Remote Site A
Remote Site B
Remote Site C
Host Host
Host Host
D2D2500
Data Center
D2D4000
Tape Library
Host Host
D2D2500D2D2500
Tape Library
Figure 45 Seeding initial data using Tape Attach
1. Host backs up to a Non Replicating library on the Source Appliance.
2. The first full backup is copied to a cartridge on a Tape Library.
3. The physical cartridge is shipped to the Data Center.
4. The first full backup is imported from Tape Library into a Non-Replicating Library on the Target
Appliance.
5. Once imported create the replication linkage between Source and Target Appliances and configure
slot mappings.
6. Normal replication across the WAN can now take place with only new or changed data needing
to be replicated.
IMPORTANT:
With this option, initial data must be seeded onto a Non-Replicating Library before you use the Web
Management Interface to configure the replication source and target.
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Running the replication wizard
The Replication Wizard is used to create new mappings between Non-Replicating Libraries (which
become Replication Source Libraries) and either existing or new Target Libraries. (See
“Recovering a source appliance” on page 94 for information about the Recovery wizard.)
Start
Create non-replicating Library on source appliance
Create backup rotation scheme and allow first full
backup to run
Use physical
tape media for
seeding?
Yes
On the Mapping Configuration page select the
non-replicating library on the source appliance.
1. Select Start Replication Wizard.
2. Select the target appliance (or create a new one).
3. Select the target library (or create a new one).
4. Edit slot mapping name and map required slots
between source and target.
5. Confirm and finish configuration.
Replication of cartridges will now start.
Was target
co-located with
source?
No
Yes
When cartridges are synchronized, relocate target
appliance to target site.
End
Figure 46 Replication creation process
1. Create a Non-Replicating Library on the Source Appliance.
2. Create a backup rotation scheme and allow the first full backup to run.
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3. Decide how you will seed the first full backup on the Target Appliance. (See also
“Seeding the Replication Target Appliance” on page 88.)
• If you are seeding across the WAN or have been able to colocate the Target Appliance on
the same LAN as the Source Appliance, go to step 4.
• If you are seeding using physical tape media:
1. Use Tape Attach to copy the first full backup to physical media.
2. Transport the physical media to the replication target site.
3. Create a Non-Replicating Library on the Target Appliance.
4. Import the physical media into a slot within the Non-Replicating Library on the Target
Appliance.
4. Go to the Mapping-Configuration page and select a Non-Replicating Library to be converted to
a Replication Source Library.
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5. Click Start Replication Wizard. This takes you to the Select Target Appliance step.
TIP:
Click on the show/hide details link to check how many target appliances are permitted
and the number of target appliances that are currently configured. See
“Fan In, Fan Out and job concurrency” on page 77 for more information about the maximum
number of appliances that are supported.
6. Select a Target Appliance from the list and click Next.
NOTE:
If you want to select an appliance that is not yet on the list, click Add Target Appliance.
Enter the Target Appliance IP Address or fully qualified domain name. The default values
for the Command and Data Protocol Port Numbers are usually acceptable, but may be
edited if there is a conflict. Click Add Target Appliance.
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7. The wizard then moves to the Select Target Library step. Select a library on the target appliance
and click Next.
NOTE:
If you need to create a new library on the target appliance, click Create New Target Library.
Set up the details as you would normally do when creating a new library device, see
“To create a new device” on page 113.
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8. This takes you to the Edit Slot Mapping step. Enter a Slot Mapping Name. The slot number and
barcodes of all source cartridges are displayed. A new barcode is generated for them on the
target library. By default, all slots on the Source are selected for mapping and mapped to available
slots on the Target library. If you want to deselect cartridges from this slot mapping configuration,
select Unmapped from the Target Slot Name drop-down menu.
9. Click Apply to create the slot mapping configuration. Replication of cartridges will start
immediately.
NOTE:
If you were able to colocate the Target Appliance on the same LAN as the Source Appliance
to improve replication performance, remember to relocate the Target Appliance to the target
site as soon as the cartridges are synchronized.
Recovering a Source Appliance
There are three basic models for recovering data using D2D systems and, within these, there are
sub-models depending on the state from which the user is recovering:
1. Reverse Replication
• When the source device and host servers are lost, but the replication mapping is still present
on the target
• When the source device is lost and the mapping between the source and the target is broken
or removed
2. Target Promotion
• The target is accessed over the WAN using iSCSI
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• The target is co-located onto the remote site and connected via iSCSI (LAN) or FC
3. Recovery from physical media directly to host server
Reverse replication using the wizard
Remote Site A
Remote Site B
Remote Site C
Host Host
D2D2500
Host Host
D2D2500
Data Center
D2D4000
Tape Library
Host Host
D2D2500
Replacement
D2D2500
Tape Library
Figure 47 Recovery by repopulating a replacement source appliance
The source device has been lost but the mapping is still in place. This is the standard recovery model,
in which a disaster has occurred in the remote site resulting in the loss of both the host servers and
the D2D system. New hardware has been purchased and installed and the administrator now wants
to recover data to the D2D and then restore to the host server. Before the failure a mapping existed
between a Source Library on the remote site D2D and a Target Library on the Data Center D2D. After
the failure the mapping still exists but the Source Library is missing. The Target Library on the Data
Center D2D is still in Target Library mode, its mappings have not been removed.
IMPORTANT:
The Recovery wizard, described in this section, is appropriate only for reverse replication when the
source device is lost, but the replication mapping is still present on the target.
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Start
Create non-replicating library on new source appliance.
Use physical
tape media to
'reverse seed'?
Yes
Tape Attach:
1. Use Tape Attach on target appliance to copy last
full backup cartridge to tape.
2. Transport physical tape to replication source site.
3. Use Tape Attach to import physical tape to newly
created library on the source appliance.
On the Mapping Configuration page select the new
non-replicating library on the source appliance.
1. Select Start Recovery Wizard.
2. Add IP address or FQDN of the target appliance
that was used as previous replication target.
3. Select existing target library to use for recovery.
4. Adopt previous configured slot mapping.
5. All cartridges on the target are selected. Unselect
any that are not required for recovery.
6. Select Apply to start reverse replication.
As soon as reverse replication has completed for each
slot use original backup application to recover data to
the host.
New backups to the source device and replication can
now run normally.
No
End
Figure 48 Reverse replication process: source lost, mapping intact
1. Create a new Non-Replicating Library on the Source Appliance (either by running the Installation
wizard or by using the Devices page).
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2. Decide whether you want to use physical tape media to reverse seed the first full restore. It is
possible to recover across the WAN, but this may place an unacceptable load on bandwidth or
time availability.
IMPORTANT:
If using reverse seeding, use Tape Attach on the Target Appliance to copy the last full backup
cartridge to tape and transport the media to the Replication Source site. Import the physical
media into the a slot within a Non-Replicating Library on the Source Appliances (using the Tape
Attach pages) before running the Recovery wizard.
3. Go to the Replication - Mapping Configuration page and select the new non-replicating library.
4. Click Start Recovery Wizard.
5. Add the Target Appliance that was used as the previous replication target using its IP address
or fully qualified domain name.
6. Select the existing Target Library from which slots should be recovered.
7. Adopt the Slot Mapping that had been configured. All slots in the Target Library will be selected
by default, but you may deselect any cartridges that you do not wish to recover to the Source
Library.
8. Click Apply to run reverse replication.
9. As soon as reverse replication has completed for each slot, the data may be recovered to the
host using the original backup application.
10. New backups can now run to the Source Appliance and replication will run normally without
further configuration.
Reverse replication, source lost and mapping deleted
This is the non-standard recovery model, in which a disaster has occurred in the remote site resulting
in the loss of both the host servers and the D2D system. New hardware has been purchased and
installed and the admin now wants to recover data to the D2D and then restore to the host server.
Before the failure a mapping existed between a Source Library on the remote site D2D and a Target
Library on the Data Center D2D. After the failure the mapping was also removed on the Target
Appliance. The Target Library on the Data Center D2D is now in a non-replicating state.
IMPORTANT:
In this procedure you will use the Replication wizard on the Source Appliance and not the Recovery
wizard.
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Start
Create non-replicating library on new source appliance.
Use physical
tape media to
'reverse seed'?
Yes
Tape Attach:
1. Use Tape Attach on target appliance to copy last
full backup cartridge to tape.
2. Transport physical tape to replication source site.
3. Use Tape Attach to import physical tape to newly
created library on the source appliance.
On the Mapping Configuration page select the new
non-replicating library on the source appliance.
1. Select Start Replication Wizard. (Do not use the
Recovery Wizard.)
2. Add IP address or FQDN of the target appliance
that was used as previous replication target.
3. Select existing library to use for recovery.
(Its status is now non-replicating, not target.)
4. Remap the slots that were used in the previous
configured slot mapping.
5. Unhide the Recovering checkbox column and
select the cartridges to be recovered. (Any not
selected will not be recovered, but will be used
for subsequent replication overwrite.)
6. Select Apply to start reverse replication.
As soon as reverse replication has completed for each
slot use original backup application to recover data to
the host.
No
New backups to the source device and replication can
now run normally.
End
Figure 49 Reverse replication process: source lost, mapping deleted
1. Create a new Non-Replicating Library on the Source Appliance (either by running the Installation
wizard or by using the Devices page).
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2. Decide whether you want to use physical tape media to reverse seed the first full restore. It is
possible to recover across the WAN, but this may place an unacceptable load on bandwidth or
time availability.
IMPORTANT:
If using reverse seeding, use Tape Attach on the Target Appliance to copy the last full backup
cartridge to tape and transport the media to the Replication Source site. Import the physical
media into the a slot within a Non-Replicating Library on the Source Appliances (using the Tape
Attach pages) before running the Replication wizard.
3. Go to the Replication - Mapping Configuration page and select the new non-replicating library.
4. Click Start Replication Wizard.
5. Add the Target Appliance that was used as the previous replication target using its IP address
or fully qualified domain name.
6. Select the existing library from which slots should be recovered. Because the slot mappings were
deleted, this library is now a Non-Replicating Library (rather than a Target Library).
7. Remap the slots that were previously in the replication mapping.
8. All slots in the Target Library will be selected by default, but you may unhide the Recovering
checkbox column and select the cartridges that should be recovered. Any not selected will not
be recovered but will be mapped for future replication overwrite.
9. Click Apply to run reverse replication.
10. As soon as reverse replication has completed for each slot, the data may be recovered to the
host using the original backup application.
11. New backups can now run to the Source Appliance and replication will run normally without
further configuration.
Promoting a Target Library over the WAN using SCSI
In this recovery model, a disaster has occurred at the remote site resulting in the loss of both the host
servers and the D2D system. New server hardware has been purchased and installed and the admin
now wants to recover data to the server. The admin however has not installed a new D2D and is
going to recover data directly to the server from the Data Center D2D appliance over the WAN (which
will take a long time).
Before the failure a mapping existed between a Source Library on the remote site D2D and a Target
Library on the Data Center D2D. After the failure the mapping still exists but the Source Library is
missing. The Target Library on the Data Center D2D is still in Target Library mode, it has not had its
mappings removed.
IMPORTANT:
This recovery method is not suitable if the Target Library also has slot mappings from Source Libraries
on other remote sites.
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Start
On the target appliance in Data Center use
Mapping Configuration page to select target
library on target appliance in Data Center and
remove slot mapping to lost source library.
Was this the only
slot mapping to this
target library?
Yes
The library status changes to non-replicating.
Make sure its port configuration is iSCSI.
On host machine where recovery is to occur,
install iSCSI Initiator and backup application.
Configure iSCSI Initiator Name for new
non-replicating library to match that of the
host system.
Connect to Data Center appliance and library via
iSCSI from host.
Import cartridges into backup application and
recover data to the host over WAN.
When failed D2D is replaced at remote site, use
reverse replication to recover data to it.
No
Is it OK to
remove other
mappings?
No
Yes
This recovery method is not suitable because it will
break other replication mappings.
End
End
Figure 50 Recovery process: promoting a target library over the WAN
1. On the Target Appliance in the Data Center, go to the Replication - Mapping Configuration page,
select the Target Library and remove the slot mapping between it and the lost Source Library.
2. As long as there is only one slot mapping to the Target Library, it will become a Non-Replicating
Library.
NOTE:
If there are other mappings, do not remove them if it will break other library replication. Do not
proceed, this method is not suitable.
3. Edit the port configuration of the newly promoted Non-Replicating Library to make it iSCSI.
4. Install the iSCSI initiator on the host machine at the remote site where recovery is to occur and
install the backup application.
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