Data Domain CommVault Whitepaper

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WHITE PAPER

CommVault GalaxyBackup and Recoverywith Data DomainIt’s All About Recovery:Highly Reliable, High PerformanceDisk-to-Disk Data Protection at the Cost of Tape

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ExEcutivE Summary . . . . . . . . . . . . . . . . . . . . . . . . . 3

introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

commvault Galaxy and data domain

at Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

HiGH PErformancE rEcovEry and BackuP . . . . 8

flExiBility: SimultanEouS BackuPS,

rEStorES, and auxiliary coPiES . . . . . . . . . . . . . . 9

dEduPlication StoraGE:

cHanGinG StoraGE EconomicS . . . . . . . . . . . . . . . 9

Wan vaultinG: diSaStEr rEcovEry

and rEmotE SitE ProtEction . . . . . . . . . . . . . . . . 10

HiGHly rEliaBlE, ProactivE vErification

of data rEcovEry . . . . . . . . . . . . . . . . . . . . . . . . . 11

imProvEd lonG-tErm arcHival for

offSitE taPE coPiES . . . . . . . . . . . . . . . . . . . . . . . . . 12

oPtimizEd for naS and San tHrouGH

ndmP and vtl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

HiGH availaBility data ProtEction

infraStructurE . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

concluSion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

aBout data domain . . . . . . . . . . . . . . . . . . . . . . . 14

CommVault Galaxy Backup and Recovery with Data Domain

D A T A D O M A I N I C o n t e n t s

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Executive SummaryWith improvements in disk technology and cost,

disk-to-disk backup has become a preferred solution

for protecting data, a valuable corporate asset .

However, there is a world of difference between

simply writing backups to disk and designing a

disk-based data protection solution optimized for

fast and reliable recoveries .

CommVault Systems Galaxy backup and recovery

software provides an application-integrated approach

to managing and safeguarding business-critical data

for rapid, reliable data protection and recovery . it

takes full advantage of disk as random access media,

allowing simultaneous backups, restores and copies .

more importantly, commvault Galaxy focuses on

smart recovery strategies, enabling it organizations to

restore data in their most demanding environments .

Data Domain is the industry’s leading provider of

Enterprise Protection Storage systems . their applianc-

es and arrays are certified and work seamlessly with

commvault Galaxy software . data domain systems

are uniquely designed for cost-efficient, fast, and

verifiable data protection . data domain’s deduplica-

tion technology provides an average of 20x compres-

sion to commvault Galaxy’s backup data . this enables

customers to retain months of backup images for less

than $ .35/GB, a price that is comparable to tape . data

domain systems also enable network-efficient Wan

vaulting for disaster recovery (dr), remote office data

protection and tape consolidation – all under the

control of commvault Galaxy .

in addition, data domain systems offer unprec-

edented levels of data integrity, verification and

self-healing, which are unavailable in traditional file

systems or conventional disk systems .

together, commvault Galaxy and data domain offer

remarkable improvements in performance, reliability

and tco to any it organization considering disk-based

solutions for both onsite and offsite data protection .


D A T A D O M A I N I E n t e r p r i s e P r o t e c t i o n S t o r a g e

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Introduction

Challenges with Backups to Disk

falling disk prices and availability of cost-effective

Sata-based disk arrays have made disk a viable

option for backup storage and network replication

targets . However, simply inserting a cheap disk system

into a backup or replication process does not provide

better data protection or dr response .

disk has several advantages over tape . for example,

tape requires a constant stream of data for peak

performance, while disk does not . Because disks

are random access devices, data files can be more

logically organized on disk, as opposed to the linear

format of tape . disk arrays also simplify and speed

up the overall backup process . finally, disk offers

superior reliability in terms of recovering data .

despite these advantages, disk systems are still too

expensive to serve as more than a small cache to tape .

most enterprises need multiple weeks or months of

quick recoverability, requiring many versions of files

or databases . Historically, tape has been the cheapest

backup solution available, and its portability has

made it easy for companies to truck the tapes offsite

for safekeeping . While disk-based recovery is argu-

ably much faster, at $10-$20 per GB even Sata raid

arrays are far more expensive than $1-$5 per GB for

tape-based backups . With a delta this large, most it

departments choose cost over speed .

today, data deduplication has turned the tables in

disk’s favor . By eliminating redundant files during the

backup process, deduplication can compress the origi-

nal data by an average of 20x, dramatically reducing

the amount of disk storage and the associated cost

required for a disk-based solution . moreover, with

this smaller footprint, the data can now be vaulted

over an existing Wan to an offsite location, thereby

eliminating the need to drive tapes offsite .

Storing backup data on a conventional file system has

risks of its own; if the file system becomes inconsis-

tent or corrupted, recovery data is lost . this is why we

back up data in the first place .

an effective disk-based data protection solution

requires enterprise-level backup and recovery software

that takes advantage of disk as a random access device

and a robust, reliable storage system to make deep

retention and network vaulting economically and

operationally feasible . at the same time, the solution

must ensure improved reliability and data integrity .

Focused on Recovery: CommVault Galaxy and Data Domain

the purpose of backups is to recover . although a

backup process may complete successfully, the result-

ing backup image is useless if users can’t get back the

information they need . recovery operations must

work reliably, quickly and efficiently .

the combination of commvault Galaxy and data

domain systems provides a cost-effective, powerful

disk-based data protection solution, focused on the

integrity and reliability of data recovery . the com-

bined solution delivers:

increased backup and recovery performance

Simultaneous backup, recovery, and auxiliary copy processes for more flexible data protection

deduplication storage to retain months of recovery images at the cost of tape

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network-efficient Wan vaulting for more responsive dr protection

Highly reliable, proactive verification of data recoverability

optimized for naS and San environments through network data management Protocol (ndmP) and virtual tape library (vtl) support

High availability backup and recovery infrastructure

CommVault Galaxy Backup and Recovery

commvault Galaxy backup and recovery software is

a proven enterprise solution to protect and increase

data availability . it focuses on business resumption,

not just data backup . By tightly integrating with busi-

ness-critical applications such as microsoft Exchange,

Galaxy ensures data consistency .

commvault Galaxy has been supporting disk as a

backup target for over a decade . it is designed to take

full advantage of the random access capabilities of

disk . it supports simultaneous backups, restores, and

copies (auxiliary copy) . leveraging native file systems

on disk and its two-part indexing scheme, Galaxy

software optimizes backups to disk unlike competing

solutions that treat disk as a sequential device .

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Data Domain Appliances and Arrays

data domain systems are specialized disk-based

data recovery appliances and arrays designed for

high throughput backup and recovery processes

and highly reliable recoveries . With its revolutionary

deduplication technology and data invulnerability

architecture, it provides unprecedented levels of

data protection, data verification, and self-healing

capabilities that are unavailable in conventional disk

or tape systems .

data domain systems easily and seamlessly integrate

with existing commvault Galaxy environments as nfS

or cifS file servers or as a vtl .

data domain’s deduplication technology, Global

compression™, dramatically reduces the storage

capacity required for commvault Galaxy’s backup

data . key benefits of Global compression include:

less than $ .35/GB for disk-based backups

99% bandwidth reduction for Wan vaulting or remote office data protection

20x storage reduction for retaining months of backup data

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CommVault Galaxy and Data Domain at Workthis section highlights the following configurations

with commvault Galaxy and data domain systems:

data domain systems as backup targets – either Galaxy’s magnetic library or tape library devices

Galaxy’s auxiliary copy for creating tape copies from a data domain system for long-term archival or offsite tape vaulting purposes

Bandwidth efficient network vaulting using data domain replicator

Data Domain Systems as a CommVault Galaxy Backup Target

data domain systems are specially designed to

be simple and intuitive to install, configure, and

integrate into commvault Galaxy environments . data

domain systems appear as naS appliances supporting

nfS or cifS over Gigabit Ethernet or as an emulated

vtl over fibre channel . using the commvault

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mediaagents, the systems are simply added as a

magnetic library or tape library device .

as magnetic library devices, when multiple systems

are used, backup data can automatically span several

mount points . Similar to media spanning on tape,

Galaxy also allows backup to disk jobs to span from

one file system to another without user intervention

or job disruption, simplifying management .

CommVault Auxiliary Copy for Creating Tape Copies for Long-Term Archival

the configuration in Site a provides a solution for

creating tape copies from a data domain system

when dr or data retention requirements mandate

the use of removable media . a tape library and the

system are attached to the mediaagent . the system

serves as an onsite recovery repository and the tape

library provides copies for off-site storage .

With commvault policy-based-management and data

retention, only selective recovery data can be copied

to tape or migrate copies of recovery data after a

specific time period, say after 60 days .

this configuration reduces the overall cost of the

backup infrastructure, which lowers operational costs

and tape requirements . daily backup and recovery

windows no longer depend on the performance of

the tape library . the auxiliary copy window is much

larger than the original backup window, simplifying

scheduling . in addition, the data domain system is

available and accessible for backup and restore opera-

tions while copying data to tape . the larger auxiliary

copy window also reduces the number of tape drives

required to complete the tape duplication process .

Data Domain and CommVault Deployment Architecture

Site A Site B

Deduplication

Recovery

Data Domain DD400 Restorer as a magnetic library or tape library using the VTL option

Backup data is asynchronously replicated to Site B using Data Domain

Tape library for a tape archive

MediaAgent MediaAgent

iDA(s) iDA(s)CommServe

DD560DD560



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full backups took well over a weekend – only to find

on monday morning the backups were incomplete .

the company addressed this by implementing

commvault Galaxy software and data domain

systems, backing up to disk and vaulting across the

Wan at multiple locations . the combined solution

provided a cheaper, more reliable backup solution

with the ability to replicate critical data to an offsite

location for dr purposes and tape consolidation .

using smaller data domain systems, the it department

was able to centralize administration . Backup reliabil-

ity was vastly improved, as was the performance . for

rapid recovery, restores rely on the local repositories .

using a many-to-one topology, all remote offices

then vault across the Wan to the data center in San

francisco, where tape copies are made, thus consoli-

dating tape infrastructure . the company no longer

needs off-site tape vaulting services for remote of-

fices and the company copies to tape only quarterly .

in addition, the company leverages bi-directional

vaulting where San francisco’s local backups are

replicated to new york for online dr protection .

WAN Vaulting using Data Domain Replicator

this configuration also takes advantage of data

domain systems’ ability to make off-site replication

or network vaulting much easier, faster and afford-

able . the system in Site a (“originator”) has been

configured to automatically replicate recovery data

to the remote system located in Site B (“replica”)

using optional software, data domain replicator .

leveraging data domain’s deduplication technology,

Global compression, only post-compressed data on

the originator is asynchronously replicated to the

replica, reducing network bandwidth requirements

by over 99% .

during normal operations, the data domain system

in Site a serves as the local recovery repository as well

as making auxiliary copies . if this system fails or is

affected by a disaster, necessary data can be restored

across the network from the replica system or a copy

of the replica can be shipped to Site a .

A Customer Configuration for WAN Vaulting

the following illustrates an expanded configuration

where a customer has utilized the combined solution

of commvault Galaxy software and data domain

systems for bi-directional and many-to-one Wan

vaulting . the customer, a leading investment bank,

has its data center is in San francisco with remote

branch offices in new york, Boston and india .

the customer was heavily burdened by its distributed

tape-based backups . this is a common problem with

protecting most remote offices since often, remote of-

fices lack experienced it system/storage administrator .

Large Financial Customer Replicates Data Worldwide

DD430

DD430

Boston

Remote Sites Data Center

New York

India

Home

Email

Oracle

Home Email Oracle

Source

Destination

San Francisco: DD460

DD410

Backup Data

Backup Data

Backup Data

Dir A

DD410

DD460DD430

DD430

WAN



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using the combined solution, the company has

implemented network-efficient Wan vaulting for dr

remote office data protection, and tape consolidation .

High Performance Recovery and Backupthe combination of commvault Galaxy and data

domain delivers:

faster recoveries to meet ever-shrinking tolerance for downtime and to reduce rising costs-of-downtime

faster backups to meet ever-shrinking backup windows

faster and easier tape copies for off-site archive

throughput with a single data domain controller is

up to 800 GB/hour, far exceeding current lto-4 tape

drives and many primary storage systems . However,

unlike a tape drive, a system does not require con-

stant-speed streams of data for best performance .

for additional performance and capacity, multiple

systems can simply be added to commvault Galaxy

configurations .

Increased Recovery Performance

the combination of commvault Galaxy and data

domain serves the very purpose of backups – to

enable faster, more reliable recoveries . By recovering

data at the speed of disk, Galaxy software can deliver

an order of magnitude improvement in recovery

performance and reduction in downtime costs .

recoveries from disk eliminate mounting, positioning,

and unmounting delays associated with tape-based

backups . data domain’s useable capacity for multiple

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months of data retention allows recoveries to come

from disk .

the random access advantage of disk is especially sig-

nificant with a partial restore where only a few files

need to be recovered . Partial restores from a system

is up to 10 times faster than restoring from tape . the

partial or single file recovery performance is critical

because according to the Strategic research Group,

87 percent of all restores are single file recoveries,

not full system recoveries .

increased recovery performance allows it organiza-

tions to meet increasingly stringent Service level

agreements for time-to-recovery, resume business-

critical applications more quickly, and reduce the

impact of primary storage data loss .

Increased Backup Performance

the combined solution optimizes backup perfor-

mance while accelerating recovery performance .

using its ability to stream data to disk utilizing

multiple read/write heads, Galaxy allows multiple,

simultaneous backup streams at varying speeds to be

sent to one data domain system . using multiplexing

for optimal performance is no longer required .

again, backups to data domain systems do not

require allocation of tape cartridges or tape drives,

robotic movement, media mounting, media position-

ing, media offline, or media eject operations .

increased backup performance allows it organiza-

tions to complete backups within allowed backup

windows and meet high availability requirements of

business-critical applications .



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Increased Performance for Data Domain System-to-Tape Copying

With data domain systems and Galaxy’s auxiliary

copy feature, making tape copies is much easier

and faster . a single data domain system can stream

a high-end tape drive for best performance . Since

backup images on the system are not multiplexed,

there is no need to demultiplex them during the

auxiliary copy process . data domain systems allow

data to be written to tape contiguously to speed up

future restores .

Flexibility: Simultaneous Backups, Restores, and Auxiliary Copiescommvault Galaxy enables concurrent read and

write operations to a data domain system, allowing

simultaneous backups, restores and auxiliary copy

operations .

in contrast, since removable media (tape cartridges

and optical disks) can only be accessed for one opera-

tion at a time, the storage administrator must plan

carefully to avoid resource contention .

Given a data domain system’s useable capacity,

ranging from 65 tB to 1 .25 PB, recovery operations

will leverage the disk media (or magnetic library) . if

backups are running when an urgent restore request

is issued, the restore request is fulfilled immediately

without pausing the backup process . With a tape

drive, the backup tape must be unloaded and the

restore tape(s) must be loaded . only when the

restore process is finished (which may take minutes to

hours) can the backup job continue .

Deduplication Storage: Changing Storage Economicsdata domain systems offer 65 tB to 1 .25 PB of use-

able capacity in a very small footprint – a 3u chassis

that fits in a standard 19-inch rack .

this capacity enables data domain systems to store

multiple months of backup images for less than

$ .35/GB, comparable to tape . this capacity ensures

rapid recoveries, taking advantage of performance

benefits of disk .

in addition, Global compression enables Wan vault-

ing economically and operationally feasible .

Global Compression: Disk-Based Data Protection at the Cost of Tape

data domain’s deduplication technology, Global

compression, reduces data down to its raw essentials

by pooling redundant patterns within a file, across

files, and even within a block, and stores only

unique data segments . this compression algorithm

aggressively minimizes the capacity needed for

storing backup images . to commvault Galaxy, Global

compression happens behind the scenes . Galaxy

simply writes to and reads from a large nfS or cifS

file system or a vtl on a data domain system .

With Global compression, the benefits increase over

time . the first full backup will typically see about

3-4x compression; subsequent differential incremen-

tal backups will see 6-7x compression; subsequent

full backups will see 50-60x compression . in a typical

weekly full, daily differential incremental backup

policy, this results in 20x aggregate compression

after 12 weeks .



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the following is a customer example, illustrating the

effectiveness of Global compression . two months of

backup data – 7 .9 tB (or 8074 .7 GB) -- was retained in

a system, taking up only 377 .5 GB of physical storage .

this yielded a 21:1 compression ratio .

Impact of Global Compression on Synthetic Full Backups

a Synthetic full Backup consolidates the most recent

full backup (standard or synthetic) and subsequent

incremental and/or differential backups . the goal is

to improve restore performance by creating a full

backup image (or one archive file) as though a full

backup was performed at the time of the last incre-

mental backup .

in the following configuration, a standard full backup

and subsequent incremental backups are directed to

a data domain system . this enhances the usability

and efficiency of Synthetic full Backups since there is

no need to mount as many tapes to create a Synthetic

full Backup . then these backups are consolidated

into Synthetic full Backups and saved on the same

system . this ensures that a full backup image is avail-

able online for recovery operations .

as the destination for Synthetic full Backups, the

system greatly benefits from its Global compression

which stores only unique data segments . Because

Synthetic Backups are created from existing backup

images already saved on the system, Synthetic

Backups do not require additional storage .

Synthetic Fulls Bene�t from Data Domain Deduplication

Standard full backup to a Data Domain appliance(Week1: Sun)

Synthetic Full Backupto the appliance• Current as of Sat• No new data segments

are saved on the appliance

Incremental backups to the appliance (Week 2: Mon-Sat)

Incremental backups to the appliance (Week 1: Mon-Sat)

Synthetic Full Backupto the appliance

Results of Deduplication (Customer Example)

Useable (Pre-Compressed) Physical (Compressed)

900080007000600050004000300020001000

3/9 3/16

3/23

3/30 4/6 4/1

34/2

04/2

75/4

0

Reduce Data Volume for Network-Ef�cient WAN Vaulting

Traditional Storage

Data

Sto

red

1 5 10 15 200

Weeks In Use

Data VolumeReduction

Deduplication Storage



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WAN Vaulting: Disaster Recovery and Remote Site Protectionall of the storage savings from data domain’s Global

compression are also applied to Wan vaulting, dramati-

cally reducing the Wan bandwidth costs in replication .

using the data domain replicator software, backup

data from a system is asynchronously replicated to a

remote system over tcP/iP lan or Wan . data domain

offers a variety of options for deploying different

topologies cost-effectively:

one to one, simple mirroring

Bi-directional vaulting

many-to-one remote site vaulting

directory

for simple disaster protection, it would be sufficient

to vault backup images from one data domain

system to another where the replica system becomes

the asynchronous mirror of the originator system .

the other vaulting configurations offer additional

flexibility for remote office protection, responsive dr

protection and multi-site tape consolidation .

Highly Reliable, Proactive Verification of Data Recoveryone of the biggest challenges for tape is indeter-

minate backup quality . a backup process may have

completed successfully but it is difficult to verify

that data on all of the tapes is recoverable . one bad

tape can cause a restore operation to fail and this is

often discovered at the worst possible time – during

a recovery .

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disk-based backups can take advantage of raid ca-

pabilities offered by the storage subsystem . However,

the combination of data domain and commvault

offer unprecedented levels of data integrity and

reliability designed specifically for backup images to

ensure recoverability .

Data Domain’s Data Invulnerability Architecture

data domain’s reliability goes beyond raid protec-

tion . neither ata raid nor tape provides this level of

built-in, redundant data protection . data domain’s

data invulnerability architecture protects against

data loss from hardware and software failures at

multiple layers:

file system consistency verification and self-healing at the time of backup as well as continuously in the background

append-only file system software fault protection

data integrity verification and self-healing: initial, ongoing, and online

double-parity raid-6 in case of disk failure

nvram (non-volatile ram) for storage buffering for a hardware or power failure

if errors are detected at any level, the systems can

self-heal from metadata and error-correcting codes

stored within the system . in many cases, errors are

repaired online and error corrections are noted in the

system’s log . in rare cases where the data domain

system’s file system needs to be unmounted for

repair, the system will send out an alert via email so

that the administrator can plan for maintenance .

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CommVault Galaxy Data Verification

commvault Galaxy provides the data verification

option for the contents of a backup . during a data

verification operation, the integrity of data is checked

to ensure that the data can be successfully restored or

copied for an auxiliary copy operation .

the data verification option can be configured to run

after all backups, all full backups, or backups occur-

ring on or after a certain date .

tape-based backups do not take advantage of this

option effectively since the operation can disrupt

already scheduled backups by creating tape resource

contention . the data verification operation for

backup images on the system does not create

resource contention since disk and magnetic libraries

allow simultaneous accesses .

the combination of Galaxy’s data verification and

data domain’s data invulnerability architecture

ensures reliable and successful data recoveries .

Improved Long-term Archival for Offsite Tape Copiesthe combined solution enables it organizations to le-

verage investments in the existing tape infrastructure

to create long-term archives or dr copies, especially

when removable media is required . using Galaxy’s

auxiliary copy and Synthetic full Backup capabilities,

tape copies can be automatically created from data

domain systems .

Lower Tape Infrastructure Cost

using data domain systems increases the efficiency,

speed, and flexibility of your data protection

process . at the same time, it lowers tape-related

infrastructure costs .

Since the existing tape infrastructure is used for

offsite archiving or tape vaulting, any upgrades to

the tape infrastructure can be deferred . Backups are

sent to data domain systems then copied to tape

in the background . Because Galaxy client system

performance is not impacted, tape copies can run at a

slower data transfer rate .

in addition, only a subset of backups may need to be

copied to tape . for example, a service level agreement

may dictate that only weekly full backups are dupli-

cated to tape and retained for an extended period .

daily incremental backups written to data domain

systems do not need to be copied to tape, further

reducing tape drive and removable media costs .

Optimized for NAS and SAN through NDMP and VTLcommvault Galaxy provides performance, reli-

ability, and ease-of-management required to protect

multi-terabyte naS filers . ndmP provides a standard

network interface for managing backup control and

data movement from naS filers . using ndmP to

control the backup and recovery processes, Galaxy

offers the flexibility of targeting filer backups to

both tape and disk media . this enables data domain

systems to save filer backups efficiently .

data domain also offers a vtl option that provide

emulation of up to 64 active virtual lto drives across

up to 100,000 virtual cartridges, supporting 1GB or

2GB fibre channel links . this enables data domain

systems to be configured as tape library devices

within commvault Galaxy environments .



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unique to data domain is additional flexibility:

customers can use both the vtl interface and data

domain’s existing naS-style file service interfaces

simultaneously . the vtl option also supports data

domain replicator, so compressed virtual tape images

can be automatically copied across the Wan to a dr

site, using minimal bandwidth .

High Availability Data Protection Infrastructure commvault Galaxy provides a highly available data

protection infrastructure to ensure the successful

completion of backup jobs . in commvault, a data

path is the combination of mediaagent, library and

drive Pool used by the storage policy copy to perform

a data protection operation . Each storage policy

copy has a default data path which will be used by

commvault to perform data protection operations .

in addition, alternate data paths can be defined in

the storage policy copy . this enables Galaxy to auto-

matically switch over to an alternate data path, when

one of the components in the default data path is

not available . in addition to ensuring the successful

completion of data protection jobs, alternate data

paths utilize available libraries and drives in the event

of failure or non-availability of these resources .

this means that alternate paths are always available

to enable access to specific storage such as a data

domain system, even if the mediaagent that wrote

the data is unavailable .

Conclusioncombining commvault Galaxy and data domain

systems provides it organizations a powerful, cost-

effective data protection solution, focused on fast

and reliable recoveries . commvault and data domain

improve data protection with:

High throughput backups and restores to meet shrinking backup and recovery windows

Deduplication storage to retain several months of backup data using a small footprint

Bandwidth- and cost-effective WAN vaulting configurations for remote office and dr protection

Highly reliable data recoveries with proactive data verification

Simultaneous backup, recovery and auxiliary copy processes for flexible data protection

Lower TCO for data protection

cost advantages of tape (less than $ .35/GB) through data domain’s deduplication technology

Significant reduction in network bandwidth costs for network vaulting

lower backup administration costs

repurpose existing tape infrastructure or defer tape infrastructure upgrades

Improved DR capabilities through Wan vaulting as well as traditional offsite tape archives

Optimized for NAS and SAN environments through ndmP and vtl support

High availability backup and recovery

With the combined solution, it organizations no lon-

ger need to choose between optimizing backup and

optimizing recovery . commvault and data domain

make the backup, recovery, and dr processes faster,

simpler, verifiable, and more cost effective, enabling

you to meet increasingly stringent service levels and

reduce costs .

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copyright © 2007 data domain, inc . all rights reserved .

data domain, inc . believes information in this publication is accurate as of its publication date . this publication could include technical inac-curacies or typographical errors . the information is subject to change without notice . changes are periodically added to the information herein; these changes will be incorporated in new additions of the publication . data domain, inc . may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time . reproduction of this publication without prior written permission is forbidden .

the information in this publication is provided “as is” . data domain, inc . makes no representations or warranties of any kind, with respect to the information in this publication, and specifically disclaims implied warranties of merchantability or fitness for a particular purpose .

data domain and Global compression are trademarks of data domain, inc . all other brands, products, service names, trademarks, or registered service marks are used to identify the products or services of their respective owners .

About Data Domaindata domain® is the leading provider of Enterprise Protection Storage systems for disk backup and network-based

disaster recovery . the company’s deduplication storage systems significantly reduce backup data volume to lower

backup costs and simplify data recovery . data domain delivers the performance, reliability and scalability to address

the data protection needs of enterprises of all sizes . its products integrate into existing customer infrastructures

and are compatible with leading enterprise backup software products . data domain’s nearly 1000 customers

worldwide represent a broad scope of industries including defense, education, entertainment, finance, govern-

ment, healthcare, technology, legal, media, and retail . it sells its systems through a network of channel partners

worldwide . data domain, inc . was founded in 2001 and is headquartered in Santa clara, california . to find out

more about data domain, visit www .datadomain .com .



data domain

2300 central Expressway

Santa clara, ca 95050

866-WE-dduPE

sales@datadomain .com
