On Wed, Oct 21, 2015 at 11:32:06AM +0200, Ondřej Grover wrote: > --lnk-dest is a nice feature of rsync, however, it would require me to > write yet another custom script that so many people already have and > reinvent the wheel again. I'm trying to find a ready and time-tested and > maintained solution before I go down that path. The rsynch handler in > backupninja does pretty much the same thing, but uses cp -l as --link-dest > did not exist back when it was written. Nevertheless, I'd prefer > block-level deduplication and compression. > > Your btrfs setup sounds interesting, Sarunas. Are you running those btrfs > volumes on Jessie? Any stability issues? Do you think it could work with > just 1GB RAM + 1 GB swap? I was thinking about doing out-of-band > deduplication to conserve RAM. Do you use both compression and > deduplication (file or block level)? I heard they don't play nicely > together. Could you share your mount options?
Deduplication is a RAM hog on zfs and I don't know anybody using it on btrfs. Why does your backup server only have 1 GB RAM? -dsr-
