Christoph Haas wrote:
On tape it usually does not make sense to use software-compression. When storing files on (hard)disk software compression (GZIP) is really helpful to save space. The only way to seperate this is two file sets with different "Compression" options.
I may be dumb, but I DO have software compression of tape backups. Even so, that in the fileset exclusions I try to evade compressing already compressed file types.
Points here are that GZIP compresses better than tape firmware, and and letting the tape firmware to compress already compressed stuff leads to expanded file sizes.
I have found it helpful, and when bacula got that spooling option it finally enabled this software compression, as it takes some time from older machines to do it.
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