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Storage optimizationSetting up Backup Exec 2010 deduplicationThis Dell TechCenter video walks through how to set up and configure adeduplication storage folder in Backup Exec 2010, as well as how to configurebackup jobs to utilize deduplication.delltechcenter.com/video/8866943/backup+exec+2010+set+up+de-duplicationBackup Exec client deduplication is supportedon Microsoft ® Windows ® OS–based systems,and requires a Backup Exec client agent on thesystem to be protected (see Figure 1). This agentenables the data to be deduplicated at this sourceclient before it is transmitted to the backup target,helping significantly reduce the amount of datathat must be sent over the network. In addition,Backup Exec agents are designed to leveragethe deduplication of data across all systemsunder protection in the environment, helpingachieve higher levels of deduplication than wouldotherwise typically be possible.The bandwidth reductions possible whenusing Backup Exec client deduplication make thisapproach well suited for protecting distributedservers or virtual machines with bandwidth (andI/O) constraints. Traditional full backups send allof the data across the network to the backupapplication, which then directs the data to amedia source where it can be compressed ordeduplicated; traditional incremental backups,similarly, transmit entire files during the backupprocess even though only a small portion ofa given file may have changed. Deduplicatingthis data at the source enables Backup Exec toperform full backups that transmit only data thatdoes not already exist on the backup target, andto perform incremental backups that send onlychanged segments of each modified file ratherthan the entire file.In many data centers, bandwidth constraintsmay not be a concern. In this type of environment,administrators may prefer to use Backup Execmedia server deduplication, which performsthe deduplication at the storage target after thedata has already been sent over the network(see Figure 2). This approach is typically easierto incorporate into existing backup architecturesthan client deduplication. 1Figure 2. Media serverdeduplication performedon the Dell PowerVaultDL2100 helps optimizestorage while simplifyingdeployment in existingbackup infrastructuresMicrosoftExchangeMicrosoftOfficeSharePointMicrosoftSQL ServerMicrosoftActiveDirectoryDell PowerVault DL2100 –Powered by Symantec BackupExec with Backup ExecDeduplication OptionMicrosoftHyper-VOracleDatabase1 For more information on types of deduplication and the advantages and disadvantages of different approaches, see “Demystifying Deduplication,”by Joe Colucci and Kay Benaroch, in Dell Power Solutions, 2010 Issue 1, dell.com/downloads/global/power/ps1q10-20100235-colucci.pdf.82 2010 Issue 02 | dell.com/powersolutionsReprinted from Dell Power Solutions, 2010 Issue 2. Copyright © 2010 Dell Inc. All rights reserved.