Bulk delete manually scheduled ix-applications snapshots

[ericnotthered]

I am a relatively new Truenas Scale user (a few months). Not knowing at the time that it is a no-no, I created a daily snapshot of the ix-applications folder and replicated this to an external disk. I've since disabled this, but I have about 5K old snapshots that I would like to get rid of.

I've read in several threads that it is dangerous to delete ix-applications snapshots. However, the solutions to delete these seem to be related to those created by docker. I've implemented a cron job to execute "bash /root/bin/truetool -b 14 -sup" daily. This does not affect any of the scheduled ix-applications snapshots.

Can anyone recommend a method to remove these? I have upgraded to bluefin, if that makes any difference.

I'm not sure if it is safe under bluefin to delete these snapshots through the GUI - and if so, in what order would be best (most recent to oldest or vice versa).

One strategy I was wondering about was if it would work to replicate ix-applications to a different dataset without snapshots (is that possible?) then replicate it back.

Anyway, I'm far from an expert at this stage so I'd appreciate any input.

 

[morganL]

Setup the snapshot task to be daily with 1 week/month retention.... then they autodelete.

Periodic Snapshot Tasks Screens

Provides information on the Data Protection and Periodic Snapshot Task screens and settings.

www.truenas.com

Delete snapshot using a bulk operation. Probably best do to do <100 at a time. Deleting a snapshot requires metadata operations to free the space so there is some work on the pool.

/scale/scaletutorials/datasets/creatingsnapshots/

 

[Whattteva]

You can probably write a script for it using zfs list -t snap and xargs with some grep filtering and awk input sanitizer. However, you'd have to really test it out to ensure you're not going to accidentally delete wrong snapshots.