zfs

Is there an equivalent to "fstrim -av" for ZFS on Linux (ZoL)

I'm looking to periodically trim all drives via a script, My servers have a mix of ext4 and zfs.

I currently use fstrim -av for the mounted etx4 volumes but what's the equivalent command for ZoL?

Solution

  • Yes there is. As of ZoL 0.8.x, you can do the following:

    zpool trim poolname

    Or you can:

    zpool set autotrim=on poolname

    to have it happen as blocks get deallocated.