ZFS TRIM support committed to HEAD.

[Bob Bishop]

Hi,

Still seems to be working OK, but:

seagoon# zpool status
  pool: m1
 state: ONLINE
status: One or more devices has experienced an unrecoverable error.  An
	attempt was made to correct the error.  Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
	using 'zpool clear' or replace the device with 'zpool replace'.
   see: http://www.sun.com/msg/ZFS-8000-9P
  scan: scrub repaired 0 in 0h2m with 0 errors on Mon Sep 24 23:52:08 2012
config:

	NAME           STATE     READ WRITE CKSUM
	m1             ONLINE       0     0     0
	  mirror-0     ONLINE       0     0     0
	    gpt/disk1  ONLINE    109M     0     0
	    gpt/disk0  ONLINE    109M     0     0

errors: No known data errors
seagoon# sysctl -a |grep _trim
kstat.zfs.misc.zio_trim.zio_trim_bytes: 228731904
kstat.zfs.misc.zio_trim.zio_trim_success: 19406
kstat.zfs.misc.zio_trim.zio_trim_unsupported: 0
kstat.zfs.misc.zio_trim.zio_trim_failed: 0
seagoon# 

No device errors logged in messages, and scrub comes up clean as you can see. The read error count is increasing, but otherwise everything appears to work OK.

--
Bob Bishop
rb at gid.co.uk