Dell DR4300e NetVault Backup - Best Practices for Setting up VTL Containers an - Page 39

Disk-space reclamation The blanking of used media in NetVault Backup VTLs created on the DR Series appliance share will not reclaim physical disk space. To reclaim this space, you must use the nvmakemedia utility to create a clean, identical ".media" file, in name and size, to replace the old media file. Before this is done, all drives must be unloaded and the Open Door command must be issued via the NetVault Backup WebUI in the Manage Devices > Tape Library Management page. After all the applicable media have been cleaned, the Close Door option can issued. Verify that all media appear correctly on the Manage Devices page. The recovered space will be reflected after the next clean cycle completes. For more information on diskspace reclamation with a DR Series appliance, refer to the Dell NetVault Backup Command Line Interface Reference Guide at http://documents.software.dell.com/NetVault%20Backup/10.0/Command%20Line%20 Interface%20Re ference%20Guide/ Disk-space availability Due to the nature of deduplication and various factors surrounding compression yield and disk-space utilization, you must avoid running out of physical disk space. Failing to do so will result in erroneous behaviour with the backup software. 39 Best practices for setting up Dell VTL Container or NetVault Backup native virtual tape library (nVTL)