7
votes
5answers
2k views

File size with zfs compression

I usually estimate the size of a whole directory tree using du -ks $DIRECTOY_TREE_ROOT, but this method cannot be used when zfs compression is on. The total displayed by ls -l is ok for a single ...
3
votes
4answers
486 views

Does ZFS cache Compressed or Uncompressed data in a ZFS file-system with compression turned on?

ZFS supports file-system compression and it also caches frequently or recently accessed data. If a system has lots of CPU but the underlying data storage system is slow. It is possible that ZFS would ...
11
votes
11answers
5k views

Best compression for ZFS send/recv

I'm sending incremental ZFS snapshots over a point-to-point T1 line and we're to a point where a day's worth of snapshots can barely make it over the wire before the next backup starts. Our send/recv ...