#65 Remove all ZFS snapshots

May 10, 2012 | Zfs, Snapshot

Tonight, I've been trying to free up some storage space on my Solaris ZFS array, and had a bunch of old snapshots that were eating up 2TB of space. I threw together a quick BASH script to remove those old snapshots.

please use this at your own peril :)

              bash
                    
        nano /root/scripts/snapshot_cleaner.sh
        
nano /root/scripts/snapshot_cleaner.sh

and paste...

              bash
                    
        #!/bin/bash
for snapshot in `zfs list -H -t snapshot | cut -f 1 | grep tank`
do
  zfs destroy $snapshot
done
        
#!/bin/bash
for snapshot in `zfs list -H -t snapshot | cut -f 1 | grep tank`
do
  zfs destroy $snapshot
done

Make it executable

              bash
                    
        chmod +x /root/scripts/snapshot_cleaner.sh
        
chmod +x /root/scripts/snapshot_cleaner.sh

Finally, run it.

              bash
                    
        . /root/scripts/snapshot_cleaner.sh
        
. /root/scripts/snapshot_cleaner.sh

In a few minutes, I had removed all my old snapshots and freed up a bunch of space.