User’s Guide
Quantum DXi4700
with DXi 3.4.0 Software
6-68551-02
Quantum DXi4700 User’s Guide, 6-68551-02, August 2017, Product of USA.
Quantum Corporation provides this publication “as is” without warranty of any kind, either express or implied, including
but not limited to the implied warranties of merchantability or fitness for a particular purpose. Quantum Corporation
may revise this publication from time to time without notice.
COPYRIGHT STATEMENT
© 2017 Quantum Corporation. All rights reserved.
Your right to copy this manual is limited by copyright law. Making copies or adaptations without prior written
authorization of Quantum Corporation is prohibited by law and constitutes a punishable violation of the law.
TRADEMARK STATEMENT
Artico, Be Certain (and the Q brackets design), DLT, DXi, DXi Accent, DXi V1000, DXi V2000, DXi V4000, FlexTier,
GoVault, Lattus, NDX, the Q logo, the Q Quantum logo, Q-Cloud, Quantum (and the Q brackets design), the Quantum
logo, Quantum Be Certain (and the Q brackets design), Quantum Vision, Scalar, StorageCare, StorNext,
SuperLoader, Symform, the Symform logo (and design), vmPRO, and Xcellis are either registered trademarks or
trademarks of Quantum Corporation and its affiliates in the United States and/or other countries. All other trademarks
are the property of their respective owners.
Products mentioned herein are for identification purposes only and may be registered trademarks or trademarks of their
respective companies. All other brand names or trademarks are the property of their respective owners.
Quantum specifications are subject to change.
Quantum DXi4700 User’s Guide 2
Contents
Preface 10
Chapter 1: System Description 15
Overview 16
Advanced Data Deduplication Increasing Disk Retention for Backup Data 16
Remote Replication of Backup Data Providing Automated Disaster Recovery Protection 16
Enterprise Features Provide Secure Repository 16
Features and Benefits 17
Determining the DXi4700 Model 18
Data Reduction 19
Data Deduplication 19
Compression 20
Space Reclamation 20
Remote Replication 20
DXi4700 System 21
Hard Drive Storage 22
DXi Usage Scenarios 22
Quantum DXi4700 User’s Guide 3
Contents
HDDs 23
Virtual Tape Storage 24
Network Attached Storage (NAS) 25
OpenStorage (OST) 26
Supported RAID Configurations 27
RAID 6 Configuration 28
DXi Advanced Reporting 29
Network Configuration 29
Best Practices 30
Licensing 30
Virtual Media—How Many and What Size? 33
Chapter 2: Basic Operations 35
DXi4700 Node 35
DXi4700 Node Front Panel Features and Indicators 36
DXi4700 Node Rear Panel Features 39
DXi4700 Node 1 GbE Ethernet 42
DXi4700 Node 10 GbE Ethernet Port Indicators 43
DXi4700 Node 10 GBase-T Ethernet Port Indicators 44
DXi4700 Node Power Supply Indicators 44
DXi4700 Expansion Module 45
DXi4700 Expansion Module Front Panel Features and Indicators 46
DXi4700 Expansion Module Rear Panel Features 47
DXi4700 Expansion Module EMM Features and Indicators 49
DXi4700 Expansion Module Power Supply Indicators 51
DXi4700 Hard Drive Carrier Indicators 52
Turning On and Shutting Down the DXi4700 53
Turning On the DXi4700 53
Turning Off the DXi4700 54
Quantum DXi4700 User’s Guide 4
Contents
Locating DXi4700 Serial Numbers 54
Chapter 3: Remote Management 56
DXi4700 Remote Management Overview 56
Accessing Remote Management 57
The Remote Management Console 61
Chapter 4: Configuration Wizards 67
Configuration Wizards 67
NAS Wizard 69
VTL Wizard 75
OST Wizard 83
Replication Wizard 88
Users Wizard 95
Email Alerts Wizard 101
Support Wizard 105
Chapter 5: Home Page 110
Home Page 110
System Overview 111
Disk Usage 112
Data Reduction Statistics 114
Replication 115
Current Activity 119
Chapter 6: Replication 122
Replication 122
Replication Send 129
Receive NAS 138
Receive VTL 148
Quantum DXi4700 User’s Guide 5
Contents
Actions 158
Reports 161
Chapter 7: Status 162
Status 162
Hardware 163
Disk Usage 168
VTL Status 171
Accent Status 175
OST Status 177
Activity Log 178
Chapter 8: Alerts 181
Alerts 181
Admin Alerts 182
Service Tickets 183
Chapter 9: Configuration 190
DXi4700 Configuration Overview 190
NAS Configuration 191
NAS Summary 192
Windows Domain 198
Share Access 200
Advanced Setting 205
VTL Configuration 206
Partitions 206
Media 215
Remote Host Access 223
OST Configuration 231
Replicating OST Data 232
Quantum DXi4700 User’s Guide 6
Contents
Storage Servers 234
LSU 241
Manage Remote Users 246
Target IP Mapping 249
DXi Accent 252
Replication Configuration 253
PTT Configuration 262
Physical Device Discovery 263
Scheduler 265
Notifications 272
Email 273
SNMP 280
System 290
Network 290
Date & Time 302
Security 304
Manage Users 319
Client Plug-Ins 322
App Environment 323
Redirect Logging 333
FC Initiators and Targets 334
Contacts 335
Company 336
Primary and Secondary 337
Chapter 10: Utilities 338
DXi4700 Utilities Overview 338
Diagnostics 339
Analyzer 344
Quantum DXi4700 User’s Guide 7
Contents
Space Reclamation 346
License Keys 349
Secure Shred 353
Software Upgrades 355
Shutdown 363
Chapter 11: System Specifications 365
DXi4700 Physical Characteristics 365
DXi4700 G1 Physical Characteristics 366
DXi4700 G2 Physical Characteristics 366
DXi4700 Storage Capacity 367
DXi4700 Cable Drops 367
DXi4700 Interfaces 369
DXi4700 G1 Power Requirements 370
DXi4700 G2 Power Requirements 372
DXi4700 Environmental Specifications 373
DXi4700 G1 Environmental Specifications 373
DXi4700 G2 Environmental Specifications 376
Chapter 12: Troubleshooting 378
DXi4700 Status and Problem Reporting 378
General Troubleshooting 379
Viewing Service Tickets 379
Checking Hardware Status 379
Downloading a System Diagnostics File 380
Common Problems and Solutions 380
Start-up Problems 380
Hardware Problems 380
Ethernet Network Problems 382
Quantum DXi4700 User’s Guide 8
Contents
Replication Problems 383
Temperature Problems 383
Quantum DXi4700 User’s Guide 9
This manual introduces the Quantum DXi4700 disk backup solution and discusses:
l System operations
l Configuration
l Web interface
l Basic troubleshooting
l Service menus and FRU replacement
Preface
Audience
This manual is written for Quantum DXi4700 operators, system administrators, and field service engineers
Note: It is useful for the audience to have a basic understanding of UNIX® and backup/recovery
systems.
Quantum DXi4700 User’s Guide
10
Preface
Notational Conventions
This manual uses the following conventions:
Convention Example
User input is shown in bold monospace font.
Computer output and command line examples are shown in
monospace font.
User input variables are enclosed in angle brackets. http://<ip_address>/cgi-bin/stats
For UNIX and Linux commands, the command prompt is implied.
File and directory names, menu commands, button names, and
window names are shown in bold font.
Menu names separated by arrows indicate a sequence of menus to
be navigated.
The following formats indicate important information:
Note: Note emphasizes important information related to the main topic.
Caution: Caution indicates potential hazards to equipment or data.
./DARTinstall
./DARTinstall
./DARTinstall
is the same as
# ./DARTinstall
/data/upload
Utilities > Firmware
WARNING: Warning indicates potential hazards to personal safety.
l Right side of the system - Refers to the right side as you face the component being described.
l Left side of the system - Refers to the left side as you face the component being described.
l Data sizes are reported in base 10 (decimal) rather than base 2 (binary). For example:
10,995, 116,277,769 Bytes are reported as 11.0 TB (decimal/1000). In binary, this value is 10 TiB
(binary/1024).
Product Safety Statements
Quantum will not be held liable for damage arising from unauthorized use of the product. The user assumes
all risk in this aspect.
This unit is engineered and manufactured to meet all safety and regulatory requirements. Be aware that
improper use may result in bodily injury, damage to the equipment, or interference with other equipment.
Quantum DXi4700 User’s Guide 11
Preface
Contacts
For information about contacting Quantum, including Quantum office locations, go to:
http://www.quantum.com/aboutus/contactus/index.aspx
Quantum DXi4700 User’s Guide 12
Preface
Comments
To provide comments or feedback about this document, or about other Quantum technical publications,
send e-mail to:
doc-comments@quantum.com
Getting More Information or Help
StorageCare™, Quantum’s comprehensive service approach, leverages advanced data access and
diagnostics technologies with cross-environment, multi-vendor expertise to resolve backup issues faster
and at lower cost.
Accelerate service issue resolution with these exclusive Quantum StorageCare services:
l Service and Support Website - Register products, license software, browse Quantum Learning
courses, check backup software and operating system support, and locate manuals, FAQs, firmware
downloads, product updates and more in one convenient location. Get started at:
http://www.quantum.com/serviceandsupport/get-help/index.aspx#contact-support
l eSupport - Submit online service requests, update contact information, add attachments, and receive
status updates via email. Online Service accounts are free from Quantum. That account can also be used
to access Quantum’s Knowledge Base, a comprehensive repository of product support information. Get
started at:
http://www.quantum.com/customercenter/
l StorageCare Guardian - Securely links Quantum hardware and the diagnostic data from the
surrounding storage ecosystem to Quantum's Global Services Team for faster, more precise root cause
diagnosis. StorageCare Guardian is simple to set up through the internet and provides secure, two-way
communications with Quantum’s Secure Service Center.Learn more at:
http://www.quantum.com/ServiceandSupport/Services/GuardianInformation/Index.aspx
For further assistance, or if training is desired, contact the Quantum Customer Support Center:
Region Support Contact
North America 1-800-284-5101 (toll free)
+1-720-249-5700
EMEA +800-7826-8888 (toll free)
+49 6131 324 185
Asia Pacific +800-7826-8887 (toll free)
+603-7953-3010
For worldwide support:
http://www.quantum.com/serviceandsupport/get-help/index.aspx#contact-support
Quantum DXi4700 User’s Guide 13
Preface
Worldwide End-User Product Warranty
For more information on the Quantum Worldwide End-User Standard Limited Product Warranty:
http://www.quantum.com/serviceandsupport/warrantyinformation/index.aspx
Quantum DXi4700 User’s Guide 14
Chapter 1: System Description
This chapter describes the DXi4700 system and its components and includes the following sections:
Overview 16
Features and Benefits 17
Determining the DXi4700 Model 18
Data Reduction 19
Space Reclamation 20
Remote Replication 20
DXi4700 System 21
Hard Drive Storage 22
Supported RAID Configurations 27
DXi Advanced Reporting 29
Network Configuration 29
Best Practices 30
Quantum DXi4700 User’s Guide 15
Chapter 1: System Description
Overview
Overview
The DXi4700 is Quantum’s entry level and midrange disk backup solution that integrates data deduplication
and replication technology to connect backup and DR (disaster recovery) protection across distributed
corporate environments. The DXi4700 disk-based backup appliance uses Quantum’s patented data
deduplication technology to increase disk capacities by 10 to 50 times, and make WAN replication a
practical, cost-effective part of disaster recovery planning. With Capacity-on-Demand scalability from 5 TB
up to 135 TB, the DXi4700 is designed for departmental and medium business customers.
Advanced Data Deduplication Increasing Disk Retention for Backup Data
The DXi4700 leverages Quantum’s patented data deduplication technology to dramatically increase the role
that disk can play in the protection of critical data. With theDXi4700 solution, users can retain 10 to 50 times
more backup data on fast recovery disk than with conventional arrays.
Remote Replication of Backup Data Providing Automated
Disaster Recovery Protection
With the DXi4700, users can transmit backup data from a remote site to a central, secure location to reduce
or eliminate media handling. DXi™-Series replication is asynchronous, automated, and operates as a
background process.
Enterprise Features Provide Secure Repository
The DXi4700 features Capacity-on-Demand scalability from 5 TB up to 135 TB. The DXi4700 offers three
options for storage presentation:
l DXi4700 NAS Configuration - Presents storage as NAS shares (CIFS/SMB, NFS, Application
Specific) or OST storage servers.
l DXi4700 VTL Configuration - Presents storage as VTL (virtual tape library) partitions.
l DXi4700 Multi-Protocol Configuration - Ability to present storage as NAS shares (CIFS/SMB, NFS,
Application Specific), OST storage servers, and VTL (virtual tape library) partitions.
DXi Accent distributes deduplication between the DXi4700 and the backup server to accelerate backups
over bandwidth-constrained networks. Compatibility with Quantum's vmPRO software provides
consolidated support for backup of physical and virtual servers.
In addition, DXi4700 systems optionally support Data-at-Rest Encryption to secure all data stored on the
DXi4700. Data-at-Rest Encryption ensures that a hard drive that is physically removed from the DXi4700
cannot be read using another system or device.
Quantum DXi4700 User’s Guide 16
Chapter 1: System Description
Features and Benefits
Features and Benefits
The DXi4700 system provides the following features and benefits:
l New, inline data flow provides leading deduplication with an optimal combination of total system
performance, manageability, and value.
l Choice of either VTL (virtual tape library), NAS (network attached storage), and OST (OpenStorage)
presentation layers.
l 10 source to one target LAN/WAN replication compatible with DXi2500-D, DXi4000 family, DXi6000
family, DXi7500, and DXi8500 models.
l Common monitoring and management interface for multiple DXi™ units and Quantum tape libraries
through Quantum Vision™.
l (NAS and Multi-Protocol configurations only) OST Optimized Duplication support with Veritas
NetBackup 7.1.x or later or Backup Exec 2010 R3 or later.
l (Multi-Protocol configurations only) Path to tape (PTT) capability that writes data from virtual cartridges
directly to a tape library to create removable media for long term retention. It is supported by:
oVeritas™ NetBackup™ (under VTL and OST implementations)
oVeritas Backup Exec
oOracle® Secure Backup
oASG-Time Navigator™
oEMC® Networker® (versions prior to 8.1)
Note: When the path to tape feature is enabled and configured, backup data can be moved
directly from the DXi4700 system to a tape library. For a list of supported tape libraries and tape
drives, see
l (Multi-Protocol configurations only) OST direct path to tape support with Veritas NetBackup™ 7.1.x or
later.
l (VTL and Multi-Protocol configurations only) Tape Drives Emulated:
oQuantum DLT-S4, SDLT600, SDLT320, or DLT7000
oCertance LTO-2 and LTO-3
oIBM LTO-1, LTO-2, LTO-3, LTO-4, LTO-5, LTO-6, and LTO-7.
oHP LTO-1, LTO-2, LTO-3, LTO-4, LTO-5, LTO-6, and LTO-7.
l (VTL and Multi-Protocol configurations only) Libraries Emulated:
oQuantum DXi7500
oADIC Scalar 100, ADIC Scalar i2000, or ADIC Scalar i500
oADIC Pathlight VX
oQuantum Scalar i40/i80 or Quantum Scalar i6000
Quantum DXi4700 User’s Guide 17
Chapter 1: System Description
1
Determining the DXi4700 Model
oQuantum DXi6700, Quantum DXi6800, Quantum DXi4700, or Quantum DXi8500
oQuantum DX3000 or Quantum DX5000
oQuantum PX500 or Quantum PX720
oATL M2500, ATL P1000, or ATL P7000
l Oracle RMAN™ support for Oracle 11.
l LDAP/AD support.
l Dynamic Application Environment (DAE) support.
l Veeam integration support.
l Supported by every major backup software vendor.
l Rack space requirements: 2U for Node and 2U for each Expansion module (JBOD), up to a system
maximum of 8U.
l Installs in a standard four-post EIA 19” server rack.
Note: Quantum recommends installing the DXi4700 system in a controlled or restricted area and
using strong, private passwords to prevent access by untrained personnel. In addition, Quantum
recommends that system installation be performed only by qualified IT personnel with strong
networking experience.
Determining the DXi4700 Model
You will need to determine if the DXi system is a DXi4700 G1 or DXi4700 G2. Model information is located
on the pull-out information tag on the front of the Node (see Figure 1 below).
l The DXi4700 G2 information tag includes “G2” in the part number (see Figure 2 on the next page).
l The DXi4700 G1 information tag does not include “G1” in the part number (see Figure 3 on the next
page).
Figure 1: DXi4700 Information Tag
Quantum DXi4700 User’s Guide 18
Chapter 1: System Description
Data Reduction
1. Information Tag
Figure 2: DXi4700 G2 Information Tag
Figure 3: DXi4700 G1 Information Tag
Data Reduction
Data reduction is the process of reducing the amount of storage capacity required to store your data. The
DXi4700 systems provide two techniques to optimize the storage space required on your system:
l Data Deduplication below
l Compression on the next page
Data Deduplication
The DXi-Series disk backup and replication systems use Quantum’s patented data deduplication technology
to dramatically increase the role that disk can play in data protection. With DXi-Series solutions, users can
retain 10 to 50 times more backup data on fast recovery disk than with conventional arrays. This advantage
allows IT departments to cost-effectively retain months of backup data on disk for faster, more reliable
restores and more data recovery points. Quantum’s innovative implementation of this core technology
means that users do not have to compromise on performance to take advantage of extended retention
capability. Inline data flow provides streamlined deduplication that offers a maximum combination of total
system performance, manageability, and value.
Quantum DXi4700 User’s Guide 19
Chapter 1: System Description
Space Reclamation
Quantum's deduplication technology uses a sub-file, variable-length approach to identify redundant blocks
in a data stream—blocks that have appeared before in the same dataset or in datasets processed at an
earlier time. When a block appears that has already been stored, the DXi system inserts a reference pointer
to the earlier instance of the data segment instead of storing another copy. The result is a dramatic reduction
in the storage capacity needed to store the data set, and a similar reduction in the bandwidth needed to
replicate deduplicated data sets over a network.
Compression
The DXi4700 systems use compression technology after duplicate blocks have been identified and replaced
as part of the deduplication process. With compression, unique data that has been through the data
deduplication process can be compressed at a typical ratio of approximately 2:1. This enables you to
maximize the storage capacity of your system.
Space Reclamation
The space reclamation process performs multiple functions on the DXi4700.
When data is deduplicated it is stored in a block pool—a pool of all unique data blocks that were captured
during the data deduplication cycle. When subsequent backup jobs occur, the data deduplication engine
searches for new data entering the DXi and uses a variable length compression algorithm to compare new
data to existing data in the block pool. Unique blocks are added to the block pool and known blocks are
indexed.
The space reclamation function searches the blockpool for data blocks that are not referenced by any
pointers (that is, the files associated with the block have been expired and removed). Once such a data block
is identified, the block is removed to make the space reusable.
For correct system operation, space reclamation must be run at regular intervals (at least once a week).
Quantum recommends creating a schedule to automatically run space reclamation (see ).
It may be beneficial to schedule space reclamation for a time when other operations are not normally being
carried out. Therefore it is important to know when to schedule the space reclamation process. As best
practice it is recommended that this process commences at least two hours after your backup job has
completed on a daily basis. It is far more efficient to process a day’s worth of new data than a week’s worth.
Remote Replication
Today most backup occurs on isolated devices, making it difficult to deploy disk backup when disaster
recovery protection is required. DXi-Series solutions use data deduplication and replication to decrease by
up to 50 times the bandwidth required to move backup data over networks and between sites. This dramatic
Quantum DXi4700 User’s Guide 20
Chapter 1: System Description
DXi4700 System
gain makes it practical and cost-effective for users to replicate backup data over WANs for secure, networkbased disaster recovery protection, and it lets users combine rapid, local restores with sound disaster
recovery protection.
With DXi-Series replication, users can transmit data from a single site or multiple sites to a central location
using any DXi model. DXi-Series replication is an asynchronous, automated background process that
includes encryption of data in transit. This model for protecting the distributed enterprise allows users to
combine disk, replication, and tape for an optimal combination of performance, simplicity, and security.
For more information on implementing a replication plan, see Remote Replication.
Note: A DXi4700 can only replicate data to a DXi that supports the same protocol as the DXi4700
(NAS or VTL). That is, a DXi4700 NAS system can only replicate data to a DXi that supports NAS.
Similarly, a DXi4700 VTL system can only replicate data to a DXi that supports VTL.
DXi4700 System
The DXi4700 includes the following features:
Feature Description
Node 1 Node (NAS, VTL, or Multi-Protocol configuration)
Expansion modules
(JBODs)
RAID Controller l H710 RAID controller (DXi4700 G1 configuration)
Network Connectivity l 3 x 1 G bE Ethernet ports
Fibre Channel l 2 x 8 Gb Fibre Channel ports for PTT (Multi-Protocol configurations only)
0 to 3 Expansion modules (JBODs)
l H730 RAID controller (DXi4700 G2 configuration)
l H810 RAID controller (DXi4700 G1 configurations with Expansion modules
only)
l H830 RAID controller (DXi4700 G2 configurations with Expansion modules
only)
l (Optional) Additional network adapter providing 2 x 10GbE (SFP+) Ethernet
ports or 2 x 10 GBase-T Ethernet ports.
l 2 x 8 Gb Fibre Channel ports for VTL. (VTL and Multi-Protocol configurations
only)
Usable Capacity 5–135 TB usable for data storage
Quantum DXi4700 User’s Guide 21
Chapter 1: System Description
Hard Drive Storage
Note: Usable storage capacity can be upgraded at any time after purchase by adding a storage
capacity upgrade license to enable installed hardware capacity, or by adding additional hardware
capacity to the system. For information about upgrade options, see the DXi4700 Capacity Upgrade
Guide (6-68107), or contact your Quantum sales representative.
Figure 4: DXi4700 System
1. DXi4700 Node 2. Array Module (RBOD)/Expansion Module (EBOD)
Hard Drive Storage
The DXi4700 system is based upon high speed disk drives instead of tape drives (see HDDs on the next
page). The usable capacity is 5–135 TB.
l DXi4700 VTL configurations present the drive storage area as VTL partitions (see Virtual Tape Storage
on page 24).
l DXi4700 NAS configurations present the drives storage area as NAS shares and/or OST LSUs (Logical
Storage Units) (see Network Attached Storage (NAS) on page 25 or OpenStorage (OST) on page 26).
l DXi4700 Multi-Protocol configurations present the drive storage area as VTL partitions (see Virtual Tape
Storage on page 24), NAS shares, or OST LSUs (Logical Storage Units) (see Network Attached
Storage (NAS) on page 25 or OpenStorage (OST) on page 26).
By making use of high speed drives, the DXi4700 greatly reduces the time required for backup/restore
functions and improves confidence in completing the backup in the time allowed.
DXi Usage Scenarios
DXi storage presentations are optimized for backup usage rather than file sharing. Backup application
usage is typically characterized by:
l Aggregated name spaces and file contents.
l Limited direct, active file access.
l Limited browsing, scanning, or stating.
l Limited metadata manipulation (including rename).
Usage diverging from these characteristics must be qualified to ensure acceptable behavior with respect to
functionality, performance, replication, and recovery.
Note: Using Backup Exec with GRT (Granular Recovery Technology) over CIFS is not recommended
usage. GRT requires frequently overwriting portions of and appending data to existing files, which is
inconsistent with the DXi usage scenarios. Instead, Quantum recommends using OST.
Quantum DXi4700 User’s Guide 22
Chapter 1: System Description
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Hard Drive Storage
HDDs
Depending on the configuration, the DXi4700 Node supports 6 or 12 high capacity (4 TB) hard disk drives
(HDDs) (see Figure 5 below). The Node hard drives are used for the operating system, system software,
and indexes needed for data deduplication, replication, space reclamation.
The DXi4700 Expansion modules (JBODs) each support 12 high capacity (4 TB) hard disk drives (see
Figure 6 below). The Expansion module hard drives are used for data storage.
All hard disk drives are mounted and pre-assembled in drive carriers (see Figure 8 on the next page and
Figure 7 below). All drives are hot swappable.
Figure 5: DXi4700 Node Drive Slot Numbering
Figure 6: DXi4700 G1 Expansion Module Drive Slot Numbering
Figure 7: DXi4700 G2 Expansion Module Drive Slot Numbering
Quantum DXi4700 User’s Guide 23
Chapter 1: System Description
Hard Drive Storage
Item Description
0 HDD Slot 0
1 HDD Slot 1
2 HDD Slot 2
3 HDD Slot 3
4 HDD Slot 4
5 HDD Slot 5
6 HDD Slot 6
7 HDD Slot 7
8 HDD Slot 8
9 HDD Slot 9
10 HDD Slot 10
11 HDD Slot 11
Figure 8: DXi4700 Drive Carrier
Virtual Tape Storage
A virtual tape storage or virtual tape library (VTL) presentation allows the storage space on these hard
drives to appear to the backup application as tape cartridges (DLT or LTO). Data is stored on the hard drives
through an interface that appears as a tape library, with virtual cartridges, virtual drives, and a virtual
changer mechanism. A DXi4700 with a VTL or Multi-Protocol configuration can be configured to present
multiple VTL interfaces of different sizes and types at once.This allows backup applications to recognize and
integrate a DXi series system into a data center environment just like one or more physical tape libraries.
Quantum DXi4700 User’s Guide 24
Chapter 1: System Description
Hard Drive Storage
Figure 9: VTL Example
Network Attached Storage (NAS)
The DXi4700 system has the ability to serve as a NAS backup system (see Figure 10 on the next page)
where the following protocols are supported:
l CIFS/SMB Protocol below
l NFS Protocol on the next page
l Application Specific Protocol on the next page
CIFS/SMB Protocol
The CIFS (Common Internet File System) / SMB (Server Message Block) protocol defines a standard for
remote file access from many computers at a time in Windows environments.
Active Directory Support
The DXi4700 supports ADS (Active Directory Services) as well as ACLs (Access Control Lists). This
provides the following benefits:
Quantum DXi4700 User’s Guide 25
Chapter 1: System Description
Hard Drive Storage
l Compatibility with CIFS/SMB domains - NAS shares are able to join CIFS/SMB domains and use
domain authentication.
l Precise control of file system permissions - Administrators can specify which users and groups can
perform what actions.
l Robust administrative support - Administrators have the same implicit permissions as they do in
Windows operating systems.
Additional Information
l Windows 2003, Windows 2003 R2, Windows 2008, Windows 2008 R2, and Windows 2012 R2 are
supported for Active Directory domain membership.
l When you create a CIFS/SMB share, the initial permissions are the same as the default permissions
for a Windows 2003 share with the addition of an ACE (Access Control Entry) that permits full access
to the share for all authenticated users. Administrators can choose to remove this full access ACE, set
up custom permissions, or leave the ACL (Access Control List) as is if the server is set up in a fully
trusted environment.
NFS Protocol
The NFS (Network File System) protocol allows network users to access shared files stored on computers
of different types. NFS provides access to shared files through an interface called the Virtual File System
(VFS) that runs on top of TCP/IP. With NFS, computers connected to a network operate as clients while
accessing remote files, and as servers while providing remote users access to local shared files. This
protocol is used with UNIX and Linux networks. It can also be used with Windows networks.
Figure 10: NAS Backup using CIFS/SMB and NFS
Application Specific Protocol
The Application Specific Protocol allows users to create Oracle Recovery Manager (RMAN) shares on a
DXi4700 system. RMAN provides the foundation for efficiently backing up and recovering an Oracle 11
database.
OpenStorage (OST)
With the OST presentation, the DXi system presents storage servers to a Veritas NetBackup or Backup
Exec media server through a specific Veritas protocol. A storage server consists of logical storage units
Quantum DXi4700 User’s Guide 26
Chapter 1: System Description
Supported RAID Configurations
(LSUs), which are similar to directories in a NAS file system or tape cartridges in a VTL partition.
The OST presentation requires the Veritas NetBackup (7.1.x or later) or Backup Exec 2010 R3 or later host
application and the OST Plug-in client installation on the media server.
Note: Windows 2012 64-bit requires Veritas NetBackup (7.6 or later) or Backup Exec 2014 or later.
Plug-in clients are host-OS dependent and are supplied by Quantum. To use the DXi in OST mode, you
must configure an OST storage server and LSUs on the DXi. You must also map the LSUs on the
NetBackup server so that NetBackup can perform backups and restore from them. Additionally, policies for
optimized duplication (OST replication) and OST direct to tape may need to be set on the NetBackup server.
Figure 11: OpenStorage (OST) Example
Supported RAID Configurations
RAID is short for Redundant Array of Independent (or Inexpensive) Disks, which is a category of storage
that employs two or more drives in combination for fault tolerance and performance. There are a number of
RAID levels in use today such as 0, 1, 3, 5, 6 and 10. The DXi4700 uses RAID 6.
Quantum DXi4700 User’s Guide 27
Chapter 1: System Description
Supported RAID Configurations
RAID 6 Configuration
RAID 6 uses block-level striping with two parity blocks distributed across all member disks. Dual parity
provided by a RAID 6 configuration ensures that your data retains full integrity even in the event of two hard
drive failures. Since single parity RAID levels are vulnerable to data loss until the failed drive is rebuilt: the
larger the hard drive, the longer the rebuild will take and the longer the system is vulnerable to possible data
loss.
The DXi4700 Node and Expansion modules (JBODs) use RAID 6 volumes for data storage (see Figure 12
below , Figure 13 below, and Figure 14 on the next page):
l DATA - HDD slots 1–11 (data storage)
l Hot Spare - HDD slot 0
Note: The hot spare drive is initially located in slot 0. If a hard drive is replaced, the replacement drive
becomes the new hot spare.
Figure 12: DXi4700 Node RAID Sets
1 - HDD Slot 0 4 - HDD Slot 3 7 - HDD Slot 6 10 - HDD Slot 9
2 - HDD Slot 1 5 - HDD Slot 4 8 - HDD Slot 7 11 - HDD Slot 10
3 - HDD Slot 2 6 - HDD Slot 5 9 - HDD Slot 8 12 - HDD Slot 11
Figure 13: DXi4700 G1 Expansion Module RAID Sets
Quantum DXi4700 User’s Guide 28
Chapter 1: System Description
1
2
3 4
5
6
7
8
9
10 11 12
0
1 2 3
4
5
6
7
8 9 10
11
DXi Advanced Reporting
1 - HDD Slot 0 4 - HDD Slot 3 7 - HDD Slot 6 10 - HDD Slot 9
2 - HDD Slot 1 5 - HDD Slot 4 8 - HDD Slot 7 11 - HDD Slot 10
3 - HDD Slot 2 6 - HDD Slot 5 9 - HDD Slot 8 12 - HDD Slot 11
Figure 14: DXi4700 G2 Expansion Module RAID Sets
1 - HDD Slot 0 4 - HDD Slot 3 7 - HDD Slot 6 10 - HDD Slot 9
2 - HDD Slot 1 5 - HDD Slot 4 8 - HDD Slot 7 11 - HDD Slot 10
3 - HDD Slot 2 6 - HDD Slot 5 9 - HDD Slot 8 12 - HDD Slot 11
DXi Advanced Reporting
Quantum DXi Advanced Reporting works with all DXi-Series disk backup systems. DXi Advanced
Reporting combines comprehensive performance data logging with powerful visual reporting and analysis
tools to help you identify potential problems and optimize system operation. For more information, refer to
the DXi Advanced Reporting User’s Guide (6-67353).
Network Configuration
During network configuration, each individual interface on the DXi4700 can be configured as a subnet with
its own network settings. Each physical Ethernet port can be configured as an interface. In addition, you can
also create bonded interfaces (logical ports) consisting of two or more physical ports.
Keep in mind that any traffic can pass through any of the configured Ethernet ports. This means that the
routing of different traffic types, as well as firewall capability, must be controlled using the network
infrastructure (routers and switches) connected to the DXi4700.
For more information about configuration network settings, see Network on page 290.
Note: Each configured network interface requires its own set of network settings (IP address, network
mask, and gateway).
Quantum DXi4700 User’s Guide 29
Chapter 1: System Description
Best Practices
Caution: For effective bonded network use, a properly configured network switch is required. (A
network switch is not supplied with the DXi4700.) The DXi4700 bonding settings must match the switch
settings. If the switch settings and the DXi4700 settings do not match, your system may become
inaccessible through the switch.
Best Practices
There are several items that should be considered when installing and configuring your DXi4700 system. By
reviewing this information, you can help shorten the installation and configuration time for your system.
l Licensing below
l Virtual Media—How Many and What Size? on page 33
Licensing
The features of the DXi4700 are enabled through licensing options, which are available through the remote
management console (see License Keys on page 349).
Licenses are either factory-installed on the DXi4700, or they are available through a license certificate,
which is included with the system.
Factory-Installed Licenses
The following DXi4700 licenses are factory-installed:
l NAS below (NAS and Multi-Protocol configurations only)
l VTL below (VTL and Multi-Protocol configurations only)
l Backup Application Specific (Path to Tape) on the next page (Multi-Protocol configurations only)
l Data Deduplication on page 32
l Replication on page 33
l Storage Capacity on page 33
l OST on page 33 (NAS and Multi-Protocol configurations only)
l Data-in-Flight Encryption on page 33
NAS
The Network Attached Storage (NAS) license allows NAS shares to be exposed to backup hosts and
applications. (License key is pre-installed on all DXi4700 NAS and Multi-Protocol systems.)
VTL
Quantum DXi4700 User’s Guide 30
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