A quick and dirty guide to replacing a faild rpool disk in a Solaris ZFS pool.[edit]
(rpool being a root pool )
This guide is geared towards a X86 root raid 1 mirror zfs pool disk. the process will be different for other setups (eg raidz or raid 0...)
PLEASE NOTE: this is a ruff and ready guide, i have quickly thrown it together, to remind my self. I will clean it up some day.
IF this busts you system its not my fault.
Check the status[edit]
# zpool status
Will look somehting liek this:
pool: rpool
state: ONLINE
scrub: resilver completed after 0h3m with 0 errors on Mon Sep 28 16:52:43 2009
config:
NAME STATE READ WRITE CKSUM
rpool DEGRADED 0 0 0
mirror DEGRADED 0 0 0
c3t0d0s0 ONLINE 0 0 0
c3t1d0s0 FAILED 0 0 0
errors: No known data errors
Detatch the failed disk[edit]
# zpool detach rpool c3t1d0s0 (id of failed disk)
phasicaly replace faild disk[edit]
Create a new partision[edit]
# fdisk /dev/rdsk/c3t1d0p0
No fdisk table exists. The default partition for the disk is: a 100% "SOLARIS System" partition Type "y" to accept the default partition, otherwise type "n" to edit the partition table. y
Format the new partision[edit]
copy the partisions table (slice table) from the working disk to the new disk
# prtvtoc /dev/rdsk/c3t0d0s2 |fmthard -s - /dev/rdsk/c3t1d0s2
Attach the new disk[edit]
- zpool attach -f rpool c3t0d0s0 c3t1d0s0
Check the status of the new disk[edit]
- zpool status
pool: rpool
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.
scrub: resilver in progress for 0h0m, 0.49% done, 0h40m to go
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror ONLINE 0 0 0
c3t0d0s0 ONLINE 0 0 0
c3t1d0s0 ONLINE 0 0 0
errors: No known data errors