TO replace disk in zpool.

TO replace disk in zfs rpool.


 # prtconf -vp |grep -i bootpath
        bootpath:  '/pci@0,600000/pci@0/pci@8/pci@0/scsi@1/disk@0,0:a'(faulted disk)

 # ls -l /dev/rdsk/c1t0d0s0
lrwxrwxrwx   1 root     root          65 Mar 11  2010 /dev/rdsk/c1t0d0s0 -> ../../devices/pci@10,600000/pci@0/pci@8/pci@0/scsi@1/sd@0,0:a,raw

 # ls -ld /dev/rdsk/c0t0d0s0
lrwxrwxrwx   1 root     root          64 Mar 11  2010 /dev/rdsk/c0t0d0s0 -> ../../devices/pci@0,600000/pci@0/pci@8/pci@0/scsi@1/sd@0,0:a,raw


# cfgadm -c unconfigure c0::dsk/c0t0d0

<Physically remove failed disk c0t0d0>
<Physically insert replacement disk c0t0d0>

Once replacement is done ,we will configure the disk
# cfgadm -c configure c0::dsk/c0t0d0

echo |format |grep –i c0t0d0

prtvtoc /dev/rdsk/c1t0d0s2 | fmthard -s - /dev/rdsk/c0t0d0s2

label the new device with SMI as it is zfs rpool.

# zpool replace rpool c0t0d0s0
Make sure to wait until resilver is done before rebooting

# zpool online rpool c0t0d0s0

# zpool status rpool

 # zpool status rpool
  pool: rpool
 state: DEGRADED
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 Thu Feb  4 12:16:01 2016
    24.5G scanned out of 114G at 56.1M/s, 0h27m to go
    24.5G resilvered, 21.41% done
config:

        NAME                STATE     READ WRITE CKSUM
        rpool               DEGRADED     0     0     0
          mirror-0          DEGRADED     0     0     0
            replacing-0     DEGRADED     0     0     0
              c0t0d0s0/old  FAULTED      0   951     0  too many errors
              c0t0d0s0      ONLINE       0     0     0  (resilvering)
            c1t0d0s0        ONLINE       0     0     0

errors: No known data errors


Once resilveing done automatically c0t0d0s0/old will get removed.

# zpool status rpool
  pool: rpool
 state: ONLINE
status: The pool is formatted using an older on-disk format.  The pool can
        still be used, but some features are unavailable.
action: Upgrade the pool using 'zpool upgrade'.  Once this is done, the
        pool will no longer be accessible on older software versions.
 scan: resilvered 114G in 0h51m with 0 errors on Thu Feb  4 13:07:55 2016
config:

        NAME          STATE     READ WRITE CKSUM
        rpool         ONLINE       0     0     0
          mirror-0    ONLINE       0     0     0
            c0t0d0s0  ONLINE       0     0     0
            c1t0d0s0  ONLINE       0     0     0

errors: No known data errors

<Let disk resilver before installing the boot blocks>
SPARC# installboot -F zfs /usr/platform/`uname -i`/lib/fs/zfs/bootblk /dev/rdsk/c0t0d0s0