– Copy or duplicate it• If NetBackup, using the OST API, directs the DR Series system to expire a stored file, it deletes it from itsfilesystem.• Similarly, if NetBackup, using the OST API, wants to restore from a stored file, it directs the DR Series systemwhich file to restore, which then delivers the stored file to NetBackup for the restore.NOTE: OST contains a feature called optimized duplication. For example, in optimized duplication, the DMA(NetBackup) directs device A to perform an optimized duplication with device B. Device A and B communicate anddetermine which data segments of the file need to be replicated from A to B for device B to ensure that device Bcontains a full and complete duplicate data file. Once successful, the DMA now knows about both copies of thisdata file, and can use this file on device B as it would any other data file that resides there.Software Components and Operational GuidelinesTo better coordinate and integrate OpenStorage Technology (OST) with the DR Series system data storage operations,the following guidelines list the supported software, required components, optimal performance, and supportedoperations:• OST Media Server Component:– An OST server component resides on the DR Series system– For Linux media server installations, use the Linux OST plug-in and the Red Hat Package Manager (RPM)installer– For Windows media server installations, use the Windows OST plug-in and the Microsoft (MSI) installer• Supported Windows-based OST plug-in releases:NOTE: The DR Series system supports both the 32–bit and 64–bit versions for NetBackup, and the 64–bitversion for Backup Exec.– Windows 2003– Windows 2008– Windows 2008 Release 2• Supported Linux-based 64-bit OST plug-in releases:– Red Hat Enterprise Linux (RHEL), version 5.x– RHEL, version 6.x– SUSE, version 10 and 11• Supported Symantec OpenStorage (OST) protocol:– Symantec, version 9– Symantec, version 10• Supported Symantec DMAs:– NetBackup: version 7.1 (Windows 2003, 32–bit), 7.1 (Windows 2008 R2, 64–bit), 7.5 (Windows 2008, 32–bit), 7.5 (Windows 2008 R2, 64–bit), 7.1 (RHEL 5.x, 64–bit), and 7.5(SLES11 SP2, 64–bit).– Backup Exec: version 2010 Release 3 (Windows 2008 R2, 64–bit), and 2012 (Windows 2008 R2, 64–bit).NOTE: The Dell DR Series system licensing is all-inclusive, so that no additional Dell licensing isrequired to use OST or the optimized duplication capability. The Dell OST plug-in that gets installedon a supported Linux or Windows media server platform is a free download from Dell. However,Symantec NetBackup requires that you purchase a Symantec OpenStorage Disk Option license.Similarly, Symantec Backup Exec requires that you purchase the Deduplication Option to enablethe OST feature.• Backup, restore, and optimized duplication operations need to be performed via the OST plug-in25
