Deleting snapshots

[allanlevene]

When my volume is over 80% I start getting warning messages. I've noticed that the snapshots occupy a lot of space, so I attempted to delete all of them to see how much space I would reclaim.

Only a percentage were deleted. Is there a reason for this, and what is the shell command to delete all so I can do it outside of the GUI? Thank you.

 

[dlavigne]

Did you disable all of the snapshot tasks first?

 

[allanlevene]

No, but just did without any change. The system will not delete the snapshots.

 

[allanlevene]

I deleted all snapshot tasks after disabling them; that didn't help so rebooted. I was then able to use the GUI to delete a maximum of 9 at a time. I think that the GUI has a bug, as when I attempted 10 nothing was deleted, only 9 and that was with changing the sort to select different sets to be deleted.

What's the command to delete all snapshots in the shell?

 

[allanlevene]

I had the same issue with 9.3 so the bug is from a previous version, at least 9.3.

 

[dlavigne]

If either of you create a bug request at bugs.freenas.org, please post the issue number here.

 

[allanlevene]

I will. Does anyone know the command line to delete ALL snapshots? Thank you.

 

[Sakuru]

It's possible to do it from the command line, but dangerous. If you mess up, you could delete ALL of your data!
zfs destroy poolname/datasetname@%
The % is the wildcard.