On Thu, May 10, 2012 at 07:14:36AM -0600, Aaron Toponce wrote: > A word of caution: as tempting as deduplication might be, avoid it. Unless > you have significant RAM, and a fast RAID-0 SSD ZIL, I would advise against > it. It causes massive performance problems, and the benefit isn't worth the > cost. On the other hand, enabling compression is very much worth it. LZJB > is fast, and massive gains can be achieved with little effort. Just my > two-cents.
I've wanted to try filesystem-level dedup for a long time and I've heard many reports on the ZFS implementation that are in line with what you've said, which is a shame. I don't know if I just have very strange usage patterns compared to everyone else but I've always *felt* that I'd benefit from FS/block dedupe. Especially when my backup volume fills because I've moved an enormous part of the FS tree from one place to another, and it's considered a copy/delete by my backup software (rdiff-backup) rather than a 'move'. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120512160452.GD4377@debian
