Den 14.06.2011 14:06, skrev Edward Ned Harvey:
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
boun...@opensolaris.org] On Behalf Of Rasmus Fauske
I want to replace some slow consumer drives with new edc re4 ones but
when I do a replace it needs to scan the full pool and not only that
disk set (or just the old drive)
Is this normal ? (the speed is always slow in the start so thats not
what I am wondering about, but that it needs to scan all of my 18.7T to
replace one drive)
The disk config:
pool: tank
state: ONLINE
status: One or more devices is currently being resilvered. The pool will
continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
scan: resilver in progress since Tue Jun 14 10:03:37 2011
16.8G scanned out of 18.7T at 1.52M/s, (scan is slow, no estimated
time)
388M resilvered, 0.09% done
config:
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
raidz2-1 ONLINE 0 0 0
c10t21d0 ONLINE 0 0 0
replacing-1 ONLINE 0 0 0
c10t35d0 ONLINE 0 0 0
c10t22d0 ONLINE 0 0 0 (resilvering)
c10t23d0 ONLINE 0 0 0
c10t24d0 ONLINE 0 0 0
c10t25d0 ONLINE 0 0 0
c10t26d0 ONLINE 0 0 0
c10t27d0 ONLINE 0 0 0
Only this raidz2 vdev is resilvering. The other raidz2-vdev's are idle.
You can verify this with the command:
zpool iostat 30
Yes but still it wants to scan all of the data in the pool:
action: Wait for the resilver to complete.
scan: resilver in progress since Tue Jun 14 10:03:37 2011
16.8G scanned out of 18.7T at 1.52M/s, (scan is slow, no estimated time)
Each raidz is 7 x 1TB disks, around 50% filled. So should it not only scan that
data and not the full pool that holds around 18T ?
--
Rasmus F
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