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Tuesday, February 19, 2013

How FAST a TAPE DRIVE based on its type

The answer to this is determined by multiplying the native data rate of the tape drive by the compression ratio of the data being backed up. For example, 2:1 compressible data on an HP Ultrium 460 (30 MB/sec native) should achieve a data rate of 60 MB/sec.
Note that the internal pipeline of the tape drive might limit the ultimate data rate. In the case of the HP Ultrium 460, this is around 90 MB/sec. This is unlikely to be a limiter except in the fastest of systems.

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