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Vol. 6 No. 10 December 2007

VTL data management issues

With the proliferation of virtual tape libraries within storage environments, storage managers face an increased number of decisions in regards to managing and cataloging the transfer of data to tape. As disk libraries become the primary backup target for near-term data recoveries, storage managers are exploring new ways to exploit tape's strengths: high capacity, low cost and mobility. Disk is the best medium for fast backups and recoveries, but tape is often the best option for long-term data storage and retention. Companies continue to use disk and tape in their backup process, but managing both media creates issues such as: Compression algorithm differences in disk and tape libraries Encrypting and decrypting backed up data Keeping data on specific media to meet application recovery point objectives and recovery time objectives Managing size differences between virtual and physical tape cartridges Optimizing data placement based on power savings or energy costs Reconstructing deduplicated data before moving it to tape ...

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Features in this issue

  • Talking up server virtualization, security at SNW

  • VTL data management issues

    As disk libraries become the primary backup target for near-term data recoveries, storage managers are exploring new ways to exploit tape's high capacity, low cost and mobility. Disk is the best medium for fast backups and recoveries, and many companies have turned to virtual tape libraries as a way to put disk in their backup process. On the surface, it may seem easy to implement a VTL, but there are many subtle operational issues that must be dealt with to ensure that your data can be recovered quickly when needed.

  • Snapshot: Will you adopt LTO-4?

Columns in this issue

SearchSolidStateStorage

SearchVirtualStorage

SearchCloudStorage

SearchDisasterRecovery

SearchDataBackup

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