TECHNICAL WHITE PAPER▶NetBackup 5330 Resiliency/High Availability Attributes

Copyright © 2014 Symantec Corporation. All rights reserved. Symantec and the Symantec logo are trademarks of Symantec Corporation. All other brands and products
are trademarks of their respective holder/s. 01/2014
SymantecBackupandRecovery TechnicalBrief
NetBackup5330 Resiliency/HighAvailability Attributes
NetBackup5330 Resiliency and High Availability Attributes
NetBackup Appliances Family
The NetBackup Appliancefamily offerscomplementary solutionsto meetthe data protectionneeds
of modern enterprises,and includes solutionssuch as the NetBackup 5230 and NetBackup 5330
Appliances.
NetBackup 5230 Appliance
The NetBackup 5230Backup Applianceincludes master and mediacapabilities, alongside storage
and deduplication features that will meet the needs of small, mid-size, and even some large
enterprises.
NetBackup 5330 Appliance
The NetBackup 5330applianceoffersmediaservercapabilities,and is designed to meet the needs
of largeenterprisecustomers with demandingperformanceand scalability requirements across
virtual and physical infrastructures.
The NetBackup 5330 Appliance is designed to supplement the NetBackup Appliance family by
offeringkey enterprisecustomersalarge-scaleand performantoffering. Thisincludes sustainable
performanceover timeand scale,predictablejobsuccessrates under heavy loads, and powerful
deduplication capabilities.
Figure 1: NetBackup 5330 Server Node Hardware and I/O Connections
Data protectionarchitecturesare,by necessity,complex innatureasthey involveso many complex factors. There cannot be a “one
sizefits all”approach to dataprotectionbecausetheoperationalrequirementsof eachorganization dictatehowdataisused,and the
local risk assessment process dictates to some extent how it will be protected.
Confidence with NetBackup Appliances
NetBackup Appliances aredesigned to ensurecustomerscan beconfidentthattheir data isfully protected againstdisaster. Symantec
builds systemsthatarethe“lastlineof defense”for our customers and they are counting on us to recover the data and files they
need to maintain their company’s operation when unexpected events occur.
KeyBenefits
 Designed for scale and
performance
 Addresses high availability,
optimum performance, and
usable capacity challenges
 Very low probability of data loss
through volume group
distribution across disks
 MSDP Volume is duplicated on
2 different drawers
 Smaller volume groups provide
faster rebuild times
 Full Configuration of 60 drives
provides 6 Data Volumes, Half
Configuration of 33 drives
provides 3 Data Volumes
 Both Configurations provide 1
MSDP Volume, and 2 Global
Hot Spares

NetBackup AppliancestightlyintegrateNetBackup dataprotection softwarewith a highly optimized hardware platform. NetBackup
appliancedeploymentconsists of the complete installation and configuration of all appliance components to create a backup
environment that is ready to use.
TNetBackup Appliancesprovidea number of software and hardwarefeaturesto ensureintegrity forthedata protected by appliances.
Key Features
 DirectvSphereBackup;no proxyserversrequired
 Up to 100x faster backupswithNetBackup Accelerator
 Intelligentend-to-end deduplication;up to 36x faster thantargetDedupesolutions
 Up to 148 TBusablestorage,up to 144 TBDedupepool
 Built-in protection againstzero day attacksand maliciousinsider threats
 Embedded WANOptimization:up to 10x faster replication and backupsto cloud
 LeveragenewNetBackup 7.6 featuresincludingNetBackupAccelerator forVMwareandReplication Directorfor VMware
Configuration Options
The NetBackup 5330applianceisoffered ina variety of I/Oconfigurationoptions. Thisincludes the five choices shown below, with
their varying assortment of fiber channel and 10GbE expansion card configuration options.
Two of thePCIeslotson theNetBackup5330server node(slots1 and 4 asshown inthediagram) are reserved for connecting to the
primary storage tray, and are not available for client data transport.
Figure 2: NetBackup 5330 Server Node Configuration Options
Advanced Appliance Monitoring – Early Detection of Data Integrity Issues
The NetBackup Appliancescontinuously monitorsallhardwarecomponentswithintheappliance –includingall storage subsystems,
to ensure prompt detection of any storage hardware errors that could cause data integrity issues.
If a storagehardwareerrorisdetected,theuser isimmediately alerted viaan email,SNMP event and notification in the NetBackup
Applianceweb console.Userscan then takeimmediatecorrective action to ensure continuous availability of data on NetBackup

Appliances.Thisearlynotification of storagehardware errors is extremely useful when coupled with the RAID6 disk redundanc y
systemutilized by theNetBackup Appliancestoragedisks.RAID 6 ensuresdata availability despitethe occurrence of two concurrent
drivefailuresto storagedisks.NetBackup ApplianceMonitoringwill immediatelyalertusersof any drivefailuresto allowusersto take
correctiveactionbeforemorethan 2 concurrentdrivesfail.Thisearly detection systemhelpsprevent data loss caused by multiple,
simultaneous drive failures.
Symantec Critical System Protection – IDS and IPS
The NetBackup 5330ApplianceoffersbothIPS (Intrusion Prevention)andIDP(Intrusion Detection) through SymantecCritical System
Protection. This security solution monitors and acts on “normal state” and which provides Real-Time Proactive Enforcement,
Intrusion/MalwarePrevention,OS Hardening,ApplicationControl,Privileged Useraccesscontrol, Vulnerability & Patch Mitigation,
Real-timeMonitoring& Auditing,HostIntrusion Detection,FileIntegrity Monitoring,Configuration Monitoring, Track and Monitor
user access and Logging and Event Reporting.
Figure 3: NetBackup 5330 SCSP Features
Deduplication Storage System Data Integrity
The deduplicationsoftwareon NetBackupAppliancesis an extremely mature, robust and reliable data protection solution. Data
integrity of data stored inthededuplication storagesystemisof primary concern in the storage system design. The data integrity
protection provided is a full end-to-end solution, ensuring data integrity of all parts of the deduplication storage system.
Figure 4: NetBackup 5330 Deduplication Pool

When data isstored in theDeduplication pool in NetBackup Appliances, catalog objects, reference count objects and data stor e
objects are created in the Deduplication Pool. These objects are linked together using internal pointers/references in the
Deduplication Pool.Thesumof theseinternal objectsand thepointers/references between them represent the backup data in the
Deduplication Pool.
The deduplicationstoragesystemperformsatwice-daily onlinedata integrity check of all catalogobjects,referencecountobjectsand
data storeobjects.Thedata integritycheckalsochecksall theinternal pointersand referencesbetween them.Any missingobjects or
pointerscould indicatecompromised data.Theonlineintegrity checkingisrun asa backgroundmaintenancetask thatdoesnotaffect
data protection activitieslikebackups,restoresandduplication updates to the deduplication storage system. This separation of
maintenancetasksand dataprotection tasksalsoallowsdataintegritychecksto be run simultaneously with data protection tasks
without jeopardizing performance.
In addition to verifyingthepresenceand internalrelationshipsof allobjects,thededuplication storage system continuousl y runs a
CRC patrol readthatvalidatestheidentity of theobjectsby comparingCRC checksumvaluesof theobjectsatwritetimewith the CRC
valuecomputed duringtheCRC patrol read.Thisensuresthatthedata contained in thededuplication storage system has not been
unintentionally altered or corrupted in any way.
In mostcases,theonlinedataintegrity check isableto self-correctanydataintegrityissues itfinds.In caseswherean unrecoverable
data integrityissueisdetected,a warningissentto theNetBackup Administration Console UI informing the user of compromised
data.SincetheNetBackupappliance is tightly integrated with NetBackup, the warning messages provide information on which
backup point-in-time,clientand policyisaffected and suggestsimmediateremediation steps –which include re-running backups of
affected clientsand policies.Thiswill adequatelyrepopulatethecorrupted portionsof the deduplication storage system to restore
any previously un-recoverable data.
Additionally,thededuplicationstoragesystemarchitectureallowsforanyunrecoverableportionsof thededuplication storagesystem
to beimmediately isolated fromtherestof theconsistently correctstoragesystem.Unrecoverablesegmentsaremarkedfor deletion
and are essentially ejected from the deduplication storage system.
In thediagrams below the FP3 Data Store Segment has been compromised due to a filesystem or disk error. The deduplication
storagesystemimmediately isolatestheerror fromtheData Storeby markingitfor deletionand removes the FP3 segment from the
FingerprintStore.ThispreventstheFP3 segment from being referred to again for any future backup jobs. This two-step process
isolates any compromised data from the rest of the functioning data in the deduplication storage system.
Figure 5: FP3 Data Store Segment has been compromised due to a filesystem or disk error

Oncean additional backupor backups occur and the FP3 Data Segment is seen in another backed up file, a new FP3 segment is
created in the Data Store, completely ignoring the compromised data segment.
Figure 6: New FP3 segment created ignoring the compromised data segment.
Compromiseddataisolationiscritical for deduplicationstoragesystemsasduplicatedatacan continue to be referenced as backups
continue.If compromised segmentsarecontinuously referenced,datacorruption couldcontinueto spreadwithin the deduplication
pool,further worseningtheimpactof thecorruption.As mentionedpreviously, a warning will be sent to NetBackup with detailed
remediationstepsto allowtheuserto repopulatethededuplicationstoragesystemwith anycompromised data. This increases the
robustness of the storage system, allowing it to be continuously functional even when a portion of it is compromised.
Hardware Design Data Integrity
“HardwareDesignDataIntegrity”inNetBackup Appliances takean approach of isolatingpotential hardwareissuesby using separate
components in the data flow rather than a monolithic configuration traditionally used by some Deduplication Appliances.
Data in flightthrough thesystemhasthreerequirements:speed,availability and accuracy. Symantecusesa solution thatbalances all
of the requirements.Themostdemandingactivity of thesystemCPUsistheDeduplication handling of the backup data. Symantec
Appliancesusea discreteRAID controllerto do theRAID calculationandtransferof thedata to thenear linediskdrives. Since all the
calculation is done “off CPU” the CPU is free to do the main jobs of the integra ted backup appliance.
NetBackup Appliancesutilizea RAID 6 storagesolution. With this solution, there can be two concurrent drives in ether failure or
rebuild mode.Thisisvital aswith theever-increasingsizeof disk drives,therebuild timespresent a higher chanceof concurrentdrive
failures. Symantec also provides a hot spare for every RAID set that automatically takes the place of a failed drive.
Sincedisk drivesareoneof thefewcomponents thataremechanical innatureandarethemostnumerouscomponentin the system,
they arethe mostfrequentpartthatfails. When thereisa failure,theRAID controller will start the rebuild of the RAID set using the
hotsparedrive.DuringtherebuildtheRAID controllercalculatestheinformationthatwill resideon the hot spare and then writes it
to thedrive.However,sincetherebuildcan belengthybecause of the drive size, it is likely the normal operations of backup and
restorewill berequiredduringtherebuild. By usingadiscreteRAID controller,rather thana “softwareRAID”thatutilizes the system
CPUs to do theparity and XORcalculation,assome Deduplication Appliances use, NetBackup appliances are better equipped to
providethecombined speed,accuracy and availability expected. With two computeintensiveoperations, backup/Deduplication or
restore/re-hydrationandRAID restorehappeningatthesametime,itisa bestpractice to segregate the operations so that neither
function is adversely affected, especially in a high rate of Deduplication operation.

To ensurespeed in anIntegrated BackupApplianceitisimportantthatthe use of cache in the data path be used. This frees up the
CPUs for backup,Deduplication and restoreoperations. NetBackupappliancesutilizecacheon theRAID controller forboth reads and
writes.Theuseof cacheinwriteoperationshasonefailurescenario:a power failureduringwritewherethedata to bewritten to disk
still residein thecacheduringthepower failure. Thisscenarioisknown asan“incompletewrite”.NetBackup utilizes a Maintenance
FreeBackup Unitto guard againstsuch a scenario. TheMaintenanceFreeBackupUnitutilizesa combination “Super-capacitor” and
NVRAM configuration. In the event of a power loss, the data in the RAID controller cache is transferred to the NVRAM. Upon
restoration of power,thedataintheNVRAMis then transferred back to the cache and the data is then written to the disk dr ives.
Cacheisalsoavailableon disk drives. Symantec configuresthedrivessothatwritecacheon thedrivesisnotused,butthatread cache
is.In theeventof the power failurescenario noted earlier,thereisno protection of thedrive cache. Once power is removed from a
disk drive,thedata inthecacheisgone. Sincewedo notenablewritecacheon thedrivesthereisno danger of incomplete writes. In
the case of the read cache, since the source of the data is the disk drive, that data can be resent when power is restored.
AutoSupport
Figure 7: NetBackup Appliances AutoSupport Overview
Symantec Backup and Recovery Product Family
The Symantec Backup and Recovery productfamily offersmarket-leadingbackup and disasterrecoverysolutionsfor criticalcustomer
ITresources.Thisincludes Symantec NetBackupandSymantec BackupExec, leadingsolutionsfor enterprise, mid-market and small
business customers
NetBackup Platform
The NetBackup Platformisa completebackup and recovery solution thatisoptimised forvirtually any workload, whether physi cal,
virtual,arrays,or bigdata,anddeliverstrulyflexibletargetstorageoptions,whether tape,3rd party disk, appliances, including the
NetBackup Deduplication Appliancesand Integrated Backup Appliances,or cloud. Symantec NetBackup 7.6 with V-Ray Technology
deliverstheperformance, automation,and manageability necessary to protectvirtualised deploymentsatscale –wherethousandsof
Virtual Machinesand petabytesof dataarethenormtoday,andwheresoftware-defined datacentresand IT-as-a-servicebecome the
norm tomorrow. Enterprises trust Symantec.
 Comprehensive –As a singlesolution to protect all of your data assets, NetBackup provides support for virtually every
popular server, storage, hypervisor, database, and application platform used in the enterprise today.
Appliance Registration: Users can register theirAppliance and contact details on the
Symantec support website.
Issue Correlation: Symantec support uses registrationinformation when resolving any
issues reported by thecorresponding user.
Downtime Minimization: Streamlines overall support process allowing Symantec support
to minimize downtime.
Proactive Support Model: Enables Symantec support to provide a more proactive
approach to support.
CallHome Feature: Uploads data required for troubleshooting from the Appliance to the
Symantec AutoSupport server.

• Scalable–High performance,elasticautomation,andcentralised management based on a flexible, multitier architecture
enables NetBackup to adapt to the growing needs of a fast-paced, modern enterprise data centre.
• Integrated –Frombackupappliancesto bigdataplatforms,NetBackup integrates at every point in the technology stack to
improvereliability and performance. OpenStorage Technology (OST) provides even tighter integration with third-party
storage and snapshot solutions.
 Innovative–With hundredsof patentsawarded in areas including backup, recovery, virtualisation, deduplication, and
snapshot management, NetBackup continues a long tradition of bringing advanced technologies to market first.
 Proven –For over a decade,NetBackuphasled the industry as the most popular enterprise data protection software by
marketshareandisused by many of thelargestenterprises on the planet. When you need your data back, you can trust
NetBackup.
Key Benefits
 Unified,enterprise-classvirtualandphysical dataprotection eliminates point products, offers better visibility, leverages
resources, and reduces cost, complexity, and risk when virtualising mission-critical applications
 V-Ray technology lets yousearchandrecover a single file from an image backup in minutes instead of a manual mount,
search, and restore that can take hours or even days
 Simplified management and faster recovery of snapshots and replicated snapshots from anywhere in the backup
environment
 “Always on”protectionof new,moved,or cloned VMs eliminates uncertainty and overloading of hosts during backups
 NetBackup intelligentdeduplication reducesstoragecostswith deduplication ratesashighas98%while optimising backup
performance and resources with flexible “end-to-end” deployment options
Summary
Symantec hastakena balanced approach to data integrity, focusing both software and hardware optimized designs that are the
benefitof decadesof engineeringexperience. Welook atdata integrityasanexpected attributeof our backup systems rather than a
feature. Customers can rest assured their information is correct and accessible when needed.
The NetBackup 5330isperformance-tuned forworkloadsandrestoresthroughscalablecapacity,greater performanceandresiliency.
Ithas improvements fordisaster and instantrecovery aswell asreplication performance. The Media Server Deduplication (MSDP)
improvementsinclude:fingerprintlookup performance,restoreperformance,on-line and off-line protection and catalog integrity
offeringdisaster recovery for MSDP.Theaddition of vSANsupportandthevCenter Plug-In together with VMware Instant Recovery
offers VMwareenhanced managementand recovery capabilities.VMwareInstantRecoveryrecoversvirtual machines directly from
the backupdisklocation,then usesvMotion to movetheVMback to primary storage.Even very largeVMs canbeonlinewithin just a
few minutes.
The Symantec Backup and Recovery productfamily offersmarket-leadingbackup and disasterrecoverysolutionsfor criticalcustomer
ITresources.Thisincludes Symantec NetBackupandSymantec BackupExec,leadingsolutionsfor enterprise, mid-market and small
business customers.
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For More Information
Link Description
http://www.netbackup.com/ NetBackup Home Page
http://www.symantec.com/docs/TECH59978 NetBackup Compatibility Information
http://www.symantec.com/docs/DOC6488 NetBackup Documentation
http://www.symantec.com/support Symantec Support Portal

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