Dell DR4100 Symantec Backup Exec - Setting Up the DR Series System on Symantec - Page 100

Type Capacity Max number of Tapes supported LTO-2 200GiB 8000 LTO-1 100Gib 10000 LTO-1 50Gib 10000 LTO-1 10GiB 10000 Note: With a VTL container, it is very easy to add additional tapes as and when required. It is recommended to add tapes in the increments of 50 and 100 to facilitate easy inventory from Backup Exec. Check the Backup Exec recommendations for the maximum number of tapes supported. C.2.6 Space reclamation guidelines The DR Series system v3.2 Virtual Tape Library feature is presented to operating systems and data management applications alike as devices either through iSCSI or NDMP protocol connectivity. The DMA interfaces with the virtual tape library and all its underlying components including the drives and media though these specific protocols. The DMA must interact with the virtual tape media during a recycle, reuse or media initialization process in order for the DR to be able to reclaim space during its own cleaning cycle. This two-step process is required so that the backup software can reconcile the space by marking the media as expired then reusing it, consolidating space across volumes/tapes or by simply recycling the media into a scratch pool. Once these operations have been completed the DRs own cleaning cycle should be used to reclaim that virtual tape media space which in turn will free up physical space on the DR unit. Implementing proper media pool, groups and recycling practices will allow the virtual tape media to be used at optimal levels and that the underlying physical space be reclaimed accordingly by the scheduled DR reclamation. Note: In general the guidelines provided above should be sufficient for normal operations to insure proper reclamation of space is conducted preemptively. Refer your individual DMA applications for best practices and guidelines regarding tape reuse. 100 Setting Up the Dell™ DR Series System on Symantec™ Backup Exec™ | April 2015