HP StorageWorks XP Direct Backup Engine Software User Manual
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© 2002, Hewlett-Packard Company.
E0302 B9560-96001 rev.2
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2 HP Surestore Direct Backup Engine XP: User’s Guide
About this guide 5
Revision history 6
Technical support 7
Warranty statement 8
1 Backup solutions 11
Overview of Direct Backup Engine 12
Direct Backup Engine Components 13
Open-System Host Server 14
XP Disk Array and Volumes (LUs) 15
Backup Devices 17
Port Groups (Initiator Ports and Target Ports) 18
Fibre-Channel Cable Connections 19
XP Remote Console PC and Software Options 20
Configurations 21
contents
2 Preparing for Direct Backup Engine Operations 23
System Requirements 24
Port Requirements 25
Port Groups 25
Port Types of Direct Backup Engine and Fibre Channel Continuous
Access XP 26
Port Topology 27
Fibre-Channel Packages (CHF PK) 28
Fibre-Channel Connection 29
Preparing for Remote Console PC 30
Preparing the Host Server for Direct Backup Engine Operations 31
3 Using LUN Manager for Direct Backup Engine Operations 33
The LUN Manager Panel (Port Group Tab) 34
Setting the Target Ports and Initiator Ports 35
Adding Ports to a Port Group 36
Deleting Ports from a Port Group 37
Contents 3
4 Troubleshooting 39
Calling the Support Center 41
Specifications 43
Glossary 45
Index 47
4 HP Surestore Direct Backup Engine XP: User’s Guide
About this guide
This guide describes and provides instructions for preparing for Direct
Backup Engine operations on the HP Surestore Disk Array XP. The
instructions given in this guide are intended for system administrators who
already have the following skills and knowledge:
• a background in data processing and understanding of direct-access
storage device subsystems and their basic functions.
• familiarity with the disk arrays and RAID technology, XP
configuration, and related products, including the remote console.
• expertise with the UNIX file system, commands, and utilities
• proficiency with the Windows operating system
This document does not describe or provide instructions on performing
Extended Copy commands operations from the user's host server. Please
refer to the manual of the backup software application installed in your
host server for instructions on executing the Extended Copy commands.
This document applies to XP512/XP48 microcode versions 01-17-xx or
later.
Unless otherwise noted, the term disk array refers to the HP Surestore
Disk Array XP family, including these disk arrays:
HP Surestore Disk Array XP512
HP Surestore Disk Array XP48
For information about the disk arrays, please refer to the owner’s manuals.
For further information about HP Surestore XP products, please contact
your HP account team, or visit HP online at http://www.hp.com
.
Contents 5
Revision history
March 2002 First release.
6 HP Surestore Direct Backup Engine XP: User’s Guide
Technical support
For the most current information about related products, visit the support
web site:
Direct Backup Engine
High-end arrays
www.hp.com/support/dbexp
www.hp.com/support/stressfree
For information about product availability, configuration, and
connectivity, consult your HP account representative.
Contents 7
Warranty statement
HP warrants that for a period of ninety calendar days from the date of
purchase, as evidenced by a copy of the invoice, the media on which the
Software is furnished (if any) will be free of defects in materials and
workmanship under normal use.
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THE SOFTWARE WILL MEET YOUR REQUIREMENTS, OR THAT
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OR NOT ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Your use of the Software is entirely at your own risk. Should the Software
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correction. Some jurisdictions do not allow the exclusion or limitation of
8 HP Surestore Direct Backup Engine XP: User’s Guide
. EXCEP T TO THE EXTENT
liability for incidental or consequential damages, so the above limitation
may not apply to you to the extent prohibited by such local laws.
. EXCEPT TO THE EXTENT ALLOWED BY LOCAL LAW,
NOTE
THESE WARRANTY TERMS DO NOT EXCLUDE, RESTRICT OR
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STATUTORY RIGHTS APPLICABLE TO THE LICENSE OF THE
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, HOWEVER, TH AT THE
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OF GOODS IS SPECIFICALLY DISCLAIMED AND SHALL NOT
GOVERN OR APPLY TO THE SOFTWARE PROVIDED IN
CONNECTION WITH THIS WARRANTY STATEMENT.
Contents 9
1
Backup solutions
The Direct Backup Engine feature of the HP Surestore Disk Array XP with
use of a backup application provides “server-free” backup solutions
between the disk array and backup devices such as tape devices and disk
devices. Direct Backup Engine enables nondisruptive backup directly from
disk to tape (or disk) in a storage area network (SAN) environment,
eliminating server CPU and I/O overhead during actual movement of data
and shortening the time required for backups. Users can perform copy
(backup) operations on the data (in unit of blocks) stored on the
multiplatform XP disk array via fibre-channel interfaces by copying the
data directly onto the users' backup devices (such as tape devices and
disk).
Backup solutions 11
Overview of Direct Backup Engine
Host Server
Backup
Application
Backup Device
Data
Tape Device or Disk
Data
Extended Copy
Command
XP Disk Array
VOL
Direct Backup
Engine
"Server-Free"
Direct Backup
(Backup)
Figure 1. Direct Backup Engine
Direct Backup Engine supports the Extended Copy commands issued from
the host server (with a backup application installe d) to the XP Disk Array.
To use Direct Backup Engine, you must enable (install) the Direct Backup
Engine feature option on the XP Remote Console PC. You will also use
the LUN Manager feature option on the XP Remote Console PC to set the
fibre-channel ports required for the Direct Backup Engine operations. For
instructions on installing the Remote Console PC and LUN Manager
remote console software, please refer to the product documentation
Direct Backup Engine only assists backup operations for the data stored on
the XP Disk Array by enabling the XP Disk Array to receive the Extended
Copy commands issued by the open-system host server, and copy the
specified data directly to a specified backup device. Direct Backup Engine
is provided as a XP remote console option (license key), but to perform
Direct Backup Engine) operations, a backup application, which actually
issues the Extended Copy commands to the disk array, is also required in
the host server.
Generally, the term “Extended Copy command” refers to a block-oriented
command that can cause device-to-device data movement. In this
document, the term “Direct Backup Engine operations” sometimes refers
not only to the XP Direct Backup Engine feature alone, but also the entire
backup procedures including LUN Manager operations for setting the
ports and the Extended Copy commands issued from the host server. For
information and instructions on performing LUN Manager operations,
please refer to the product documentation. Fo r info rm ati on and inst ruc tion s
on performing the Extended Copy command operations on the host server,
please refer to the manual of the backup application, or contact your HP
account team.
12 HP Surestore Direct Backup Engine XP: User’s Guide
Direct Backup Engine Components
Direct Backup Engine operations involve the following components:
• Open-system host server
• HP Surestore Disk Array XP and volumes (LUs)
• Backup devices (tape devices and/or Disks)
• Port groups (target ports and initiator ports)
• Fibre-channel cable connections
• XP Remote Console PC
• LUN Manager remote console software
• Direct Backup Engine remote console option (license key)
• Fibre-channel package for initiator ports
Figure 2 shows the Direct Backup Engine components and their functions:
Open-system host server
Backup Ap pl ication
Extended Copy
Command
XP Disk
Array
Data Path
Port Group (0 - F)
FC Connection
Target
Max. of 63 LUs
Figure 2. Direct Backup Engine Components
(Max. = 16)
FC Connection
The server remains on-line during backup.
Fibre-C hannel Connecti on
Backup
Initiator
Copy
SVP
Backup
Device
Public LAN
Remote Console PC
LUN Manager
!
Direct Backup
!
Engine
Backup solutions 13
Open-System Host Server
The Direct Backup Engine operations involve the open-system host server
with a backup application installed. The host server executes the Extended
Copy commands to copy the specified data in the XP Disk Array to the
specified backup devices (such as tape devices and Disks). The host server
can remain online during the actual movement of data from disk to tape or
disk; therefore the server CPU and I/O resources are always available to
other operations and applications. The host server must be connected to a
target port in the XP Disk Array via the fibre-channel interface.
Note: For the host server requirements, see the systems requirements.
14 HP Surestore Direct Backup Engine XP: User’s Guide
XP Disk Array and Volumes (LUs)
The Direct Backup Engine operations involve the XP Disk Array. Direct
Backup Engine supports all physical disk drive options and RAID-level
configurations for the XP Disk Array. The XP Disk Array contains the
original volumes (LUs) for backup, and remains online to the host server
all the time. Also, the XP Disk Array must contain at least one port group,
which consists of a target port for receiving the Extended Copy commands
from the host server and an initiator port for copying the specified data to
the backup device. Also, the LUN Manager option on the Remote Console
PC is required to set the port groups.
Direct Backup Engine supports all LUs that can be identified by the
backup application on the host server. When the Extended Copy command
is issued to the XP Disk Array from the backup application on the host
server, information about the data (files) that you want to copy is reported
to the XP Disk Array by the Extended Copy command. For example, the
Extended Copy command instructs the XP Disk Array about the LUN in
which the data is stored, the starting Logical Block Address (LBA), and
the data size to be transferred.
to copy depends on the backup application on the host server.
Note: How you specify files that you want
Figure 3 shows an example of how the Extended Copy command specifies
the data to be copied.
Backup solutions 15
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