ZFS trim and scrub

[meyergru]

The short answer to that is no. The long answer you will find here.

[abulafia]

For the default zroot pool, autotrim is on. While you could scrub, it would only be useful if you had multiple disks.

I tend to disagree: a scrub will check the checksums and therefore
show if the file system is corrupted.

It won't be able to self-heal with just one disk, but it will be able to tell you that you need to pay attention to that pool (e.g. replace the disk and restore from backup).

[kevindd992002]

It's in your HOWTO ;-)

That is, if the ZFS "autotrim" feature is not set manually. You can either set this via the OpnSense CLI with "zpool set autotrim=on zroot" or, better, add a daily cron job to to this (System: Settings: Cron) with "zroot" as parameter.
You can trim your zpool once via CLI with "zpool trim zroot".

Oh nice, I didn't know meyergru had a How To guide. Good to use for my environment then.

[Taomyn]

The short answer to that is no. The long answer you will find here.

Thanks for letting me know and I'm glad I asked - I saw your feature request and will wait to see if something official gets added.