Möchte man nach einer frischen OS Installation die zweite Festplatte als Mirror Device verwenden, geht man wie folgt vor:

Punkt 1: Auflistung der Device Links

echo | format

echo | format 
Searching for disks...done
 
 
AVAILABLE DISK SELECTIONS:
       0. c4t0d0 <HITACHI-H101414SCSUN146G-SA25 cyl 17845 alt 2 hd 255 sec 63>
          /pci@0,0/pci1022,7450@2/pci1000,3060@3/sd@0,0
       1. c4t1d0 <HITACHI-H101414SCSUN146G-SA25 cyl 17845 alt 2 hd 255 sec 63>
          /pci@0,0/pci1022,7450@2/pci1000,3060@3/sd@1,0
Specify disk (enter its number): Specify disk (enter its number): 
root@server:~#

Punkt 2: Duplizierung der Disk Partition (x86 only):

fdisk -W /var/tmp/rpool-fdisk /dev/rdsk/c4t0d0p0
fdisk -F /var/tmp/rpool-fdisk /dev/rdsk/c4t1d0p0

Punkt 3: Dublizierung des Label (x86 & SPARC):

prtvtoc /dev/rdsk/c4t0d0s0 | fmthard -s - /dev/rdsk/c4t1d0s0
fmthard:  New volume table of contents now in place.

Punkt 4: Mirror für den root pool erstellen (x86 & SPARC):

zpool attach -f rpool c4t0d0s0 c4t1d0s0
Make sure to wait until resilver is done before rebooting.

Punkt 5: Installation des GRUB boot loader (x86 only):

installgrub /boot/grub/stage1 /boot/grub/stage2 /dev/rdsk/c4t1d0s0
stage2 written to partition 0, 277 sectors starting at 50 (abs 16115)
stage1 written to partition 0 sector 0 (abs 16065)

Punkt 6: Installation des boot loader (SPARC only):

#
installboot -F zfs /usr/platform/`uname -i`/lib/fs/zfs/bootblk /dev/rdsk/c4t1d0s0

Punkt 7: Wahlweise kann man jetzt im BIOS (x86) oder OpenBOOT PROM (SPARC) das booten von der zweiten Festplatte erlauben:

eeprom "boot-device=disk1 disk2"

Punkt 8: Zpool Status Überprüfen & das System erst nach einem vollständigen Resilvering neustarten:

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.
  scan: resilver in progress since Mon Apr  1 00:26:18 2013
    1,55G scanned out of 7,85G at 13,5M/s, 0h7m to go
    1,55G resilvered, 19,76% done
config:
 
        NAME          STATE     READ WRITE CKSUM
        rpool         ONLINE       0     0     0
          mirror-0    ONLINE       0     0     0
            c4t0d0s0  ONLINE       0     0     0
            c4t1d0s0  ONLINE       0     0     0  (resilvering)
 
errors: No known data errors
root@server:~#

zpool status
  pool: rpool
 state: ONLINE
  scan: resilvered 7,85G in 0h3m with 0 errors on Mon Apr  1 00:29:56 2013
config:
 
        NAME          STATE     READ WRITE CKSUM
        rpool         ONLINE       0     0     0
          mirror-0    ONLINE       0     0     0
            c4t0d0s0  ONLINE       0     0     0
            c4t1d0s0  ONLINE       0     0     0
 
errors: No known data errors
root@server:~#