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How DPM Uses Tape

Updated: April 21, 2010

Applies To: System Center Data Protection Manager 2010

To use tape-based protection in DPM, you must attach a tape library or stand-alone tape drive to the DPM server. A tape library is a data-storage system that consists of one or more tape drives, a number of slots to hold tape cartridges and a transport system for moving tapes. A stand-alone tape drive is a single-drive, non-automated tape drive that holds a single tape.

You can use tape for both short-term and long-term protection of file and application data.

DPM protects data on tape through a combination of full and incremental backups from either the protected computer (for short-term protection on tape or for long-term protection on tape when DPM does not protect the data on disk) or the DPM replica (for long-term protection on tape when short-term protection is on disk).

noteNote
When an application does not support incremental backups, DPM will perform full backups only.

DPM can either compress or encrypt data on tapes. Compressing encrypted data can increase the data file size instead of decreasing it.

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