Question about HP (C7972A-10PK) LTO Ultrium Storage Media

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Issues with a C7972A 400GB tape: I observed that when the backup size reaches over 250GB, the tape starts giving an error that it cannot complete the backup. Is there a limitation on how much data can be placed on these tapes?

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This tape is 200GB with no compression, up to 400GB with compression assuming 2:1 compression ratio. The compression ration is dependent on the type of file e.g. an MP3 file will not compress much, nor will a ZIP or JPG file, but BMP, DOC, TIFF will compress well. In my experience it is best to assume worst case and calculate for no compression i.e. assume max capacity of 200GB.

Posted on Mar 15, 2011

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Posted on Jan 02, 2017

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Ned Huang
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