Hi list,
I've a strange behaviour with autoreplace property. It is set to off by
default, ok. I want to manually manage disk replacement so default "off"
matches my need.
# zpool get autoreplace mypool
NAME PROPERTY VALUE SOURCE
mypool autoreplace off default
Then I added 2 spare disks.
spares
c1t18d0 AVAIL
c1t19d0 AVAIL
Ok, fine.
Then I had failures with 1 disk of the pool and can see in logs the
following :
------------------------
DESC: The number of I/O errors associated with a ZFS device exceeded
acceptable levels. Refer to http://sun.com/msg/ZFS-8000-FD for more
information.
AUTO-RESPONSE: The device has been offlined and marked as faulted. An
attempt will be made to activate a hot spare if available.
-----------------------
This is where my problem occurs , zfs automatically replaced faulted
disk by a spare ! even with autoreplace=off
# zpool status
pool: mypool
state: DEGRADED
status: One or more devices are faulted in response to persistent errors.
Sufficient replicas exist for the pool to continue functioning in a
degraded state.
action: Replace the faulted device, or use 'zpool clear' to mark the device
repaired.
scrub: resilver completed after 0h0m with 0 errors on Thu Feb 4
00:10:25 2010
config:
NAME STATE READ WRITE CKSUM
mypool DEGRADED 0 0 0
mirror ONLINE 0 0 0
c0t2d0 ONLINE 0 0 0
c0t3d0 ONLINE 0 0 0
c0t4d0 ONLINE 0 0 0
c0t5d0 ONLINE 0 0 0
mirror DEGRADED 0 0 0
c0t6d0 ONLINE 0 0 0
c0t7d0 ONLINE 0 0 0
spare DEGRADED 4 0 0
c1t8d0 FAULTED 3 26 0 too many errors
c1t18d0 ONLINE 0 0 4 56K resilvered
c1t9d0 ONLINE 0 0 0
mirror ONLINE 0 0 0
c1t10d0 ONLINE 0 0 0
c1t11d0 ONLINE 0 0 0
c1t12d0 ONLINE 0 0 0
c1t13d0 ONLINE 0 0 0
mirror ONLINE 0 0 0
c1t14d0 ONLINE 0 0 0
c1t15d0 ONLINE 0 0 0
c1t16d0 ONLINE 0 0 0
c1t17d0 ONLINE 0 0 0
cache
c2d0 ONLINE 0 0 0
c3d0 ONLINE 0 0 0
spares
c1t18d0 INUSE currently in use
c1t19d0 AVAIL
errors: No known data errors
Any idea why it has been done automatically ?
solaris 10U8 Generic_141445-09 - zpool version 15 - zfs version 4
Thx for your answers.
--
Francois
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