xavierbt Posted August 5, 2010 Report Share Posted August 5, 2010 (edited) I have two questions about Retrospect compression behaviour. 1. I have an AIT2 tape that has built-in hardware compression and Retrospect can do software compression. Which will compress better ? The built-in hardware compression included in the tape unit or the software compression algorithm from Retrospect ? 2. If I compress a backup stored in a disk with Retrospect software compression and after i copy the backup to a tape. Retrospect will store a a compressed copy in the tape or it will uncompressed the files to store to tape ? Edited August 5, 2010 by Guest Quote Link to comment Share on other sites More sharing options...
Lennart_T Posted August 5, 2010 Report Share Posted August 5, 2010 Use the hardware compression. It always compresses in real time. Software compression is a performance hit. (I think software compression isn't an option when hardware compression is used.) I think the files will be sent uncompressed to the tape drive and re-compressed there. Quote Link to comment Share on other sites More sharing options...
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