Trim

[JonathanLee]

Does anyone know how to run trim on a SG-2100MAX?

I ran zfs scrub and it shows 46% fragmented I want to trim it for the first time

[stephenw10]

Like:

[23.09.1-RELEASE][admin@2100-3.stevew.lan]/root: zpool status
  pool: pfSense
 state: ONLINE
status: Some supported and requested features are not enabled on the pool.
	The pool can still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
	the pool may no longer be accessible by software that does not support
	the features. See zpool-features(7) for details.
config:

	NAME        STATE     READ WRITE CKSUM
	pfSense     ONLINE       0     0     0
	  ada0s3a   ONLINE       0     0     0

errors: No known data errors
[23.09.1-RELEASE][admin@2100-3.stevew.lan]/root: zpool trim pfSense
[23.09.1-RELEASE][admin@2100-3.stevew.lan]/root: zpool status
  pool: pfSense
 state: ONLINE
status: Some supported and requested features are not enabled on the pool.
	The pool can still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
	the pool may no longer be accessible by software that does not support
	the features. See zpool-features(7) for details.
config:

	NAME        STATE     READ WRITE CKSUM
	pfSense     ONLINE       0     0     0
	  ada0s3a   ONLINE       0     0     0  (trimming)

errors: No known data errors

[stephenw10]

But you probably don't need to because:

[23.09.1-RELEASE][admin@2100-3.stevew.lan]/root: zpool get autotrim
NAME     PROPERTY  VALUE     SOURCE
pfSense  autotrim  on        local

[JonathanLee]

What do you think about this github?

https://github.com/clara-j/pfsense_zfs_check

It has a bash program to auto run zfs scrub on every pool

[stephenw10]

I wouldn't expect to need to scrub at every boot. Though I probably reboot more often than most!

You can also see if trim is required using:

[23.09.1-RELEASE][admin@2100-3.stevew.lan]/root: zpool status -t
  pool: pfSense
 state: ONLINE
status: Some supported and requested features are not enabled on the pool.
	The pool can still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
	the pool may no longer be accessible by software that does not support
	the features. See zpool-features(7) for details.
config:

	NAME        STATE     READ WRITE CKSUM
	pfSense     ONLINE       0     0     0
	  ada0s3a   ONLINE       0     0     0  (100% trimmed, completed at Mon Dec 11 19:41:30 2023)

errors: No known data errors

[JonathanLee]

@stephenw10 I have the cron job for it set to scrub once a month.