Hello,
Please, recently I ran the command zpool scrub on one of the existing pools on our system, but, I can see that the speed is too low. . Can anyone help me how can I earn more speed doing this method or tuning the zfs to obtaining better performance?.
Here is the output of the command: zpool status pool-name 1
pool: data
state: ONLINE
scan: scrub in progress since Fri Oct 12 17:48:10 2018
280M scanned out of 3.16T at 565K/s, (scan is slow, no estimated time)
0 repaired, 0.01% done
config:
NAME STATE READ WRITE CKSUM
data ONLINE 0 0 0
c0t60060E80103AE050057F78D50000001Fd0 ONLINE 0 0 0
c0t60060E80103AE050057F78D500000020d0 ONLINE 0 0 0
c0t60060E80103AE050057F78D500000021d0 ONLINE 0 0 0
c0t60060E80103AE050057F78D500000022d0 ONLINE 0 0 0
c0t60060E80103AE050057F78D500000023d0 ONLINE 0 0 0
c0t60060E80103AE050057F78D50000002Ad0 ONLINE 0 0 0
c0t60060E80103AE050057F78D500000027d0 ONLINE 0 0 0
c0t60060E80103AE050057F78D500000028d0 ONLINE 0 0 0
c0t60060E80103AE050057F78D500000029d0 ONLINE 0 0 0
c0t60060E80103AE050057F78D50000002Cd0s0 ONLINE 0 0 0
And here other output of the same command in other server using zpool scrub command.
pool: backup
state: ONLINE
status: One or more devices has experienced an error resulting in data
corruption. Applications may be affected.
action: Restore the file in question if possible. Otherwise restore the
entire pool from backup.
Run 'zpool status -v' to see device specific details.
see: http://support.oracle.com/msg/ZFS-8000-8A
scan: scrub in progress since Fri Oct 12 17:18:59 2018
863G scanned out of 870G at 358M/s, 20s to go
0 repaired, 99,19% done
config:
NAME STATE READ WRITE CKSUM
backup ONLINE 0 0 0
c0t60060E80103AE050057F78D500000042d0 ONLINE 0 0 0
c0t60060E80103AE050057F78D500000043d0 ONLINE 0 0 0
errors: 2 data errors, use '-v' for a list
Both pools are created using some Luns from the same storage.
Regards,