Crear un mirror del disco de booteo con zfs
Partiendo de la base que tengo estos dos discos internos y el Sistema Operativo esta alojado en el disco c1t0d0
c1t0d0
/pci@0,600000/pci@0/pci@8/pci@0/scsi@1/sd@0,0
c1t1d0
/pci@0,600000/pci@0/pci@8/pci@0/scsi@1/sd@1,0
root# zpool status rpool
pool: rpool
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
c1t0d0s0 ONLINE 0 0 0
errors: No known data errors
root#
Copio la vtoc del disco primario ( c1t0d0 ) al disco secundario ( c1t1d0 )
root# prtvtoc /dev/rdsk/c1t0d0s2 | fmthard -s - /dev/rdsk/c1t1d0s2
fmthard: New volume table of contents now in place.
root#
Agrego el disco c1t1d0s0 al pool de disco rpool
root# zpool attach -f rpool c1t0d0s0 c1t1d0s0
Make sure to wait until resilver is done before rebooting.
root#
root@psunp006:/repo# zpool status rpool
pool: rpool
state: DEGRADED
status: One or more devices is currently being resilvered. The pool will
continue to function in a degraded state.
action: Wait for the resilver to complete.
Run 'zpool status -v' to see device specific details.
scan: resilver in progress since Thu Jun 18 09:16:09 2015
22.6G scanned
5.02G resilvered at 106M/s, 20.58% done, 0h2m to go
config:
NAME STATE READ WRITE CKSUM
rpool DEGRADED 0 0 0
mirror-0 DEGRADED 0 0 0
c1t0d0s0 ONLINE 0 0 0
c1t1d0s0 DEGRADED 0 0 0 (resilvering)
errors: No known data errors
root#
Chequeo como va la sincronizacion de los discos
root# zpool status -v rpool
pool: rpool
state: DEGRADED
status: One or more devices is currently being resilvered. The pool will
continue to function in a degraded state.
action: Wait for the resilver to complete.
scan: resilver in progress since Thu Jun 18 09:16:09 2015
22.6G scanned
20.3G resilvered at 94.8M/s, 89.04% done, 0h0m to go
config:
NAME STATE READ WRITE CKSUM
rpool DEGRADED 0 0 0
mirror-0 DEGRADED 0 0 0
c1t0d0s0 ONLINE 0 0 0
c1t1d0s0 DEGRADED 0 0 0 (resilvering)
device details:
c1t1d0s0 DEGRADED scrub/resilver needed
status: ZFS detected errors on this device.
The device is missing some data that is recoverable.
see: http://support.oracle.com/msg/ZFS-8000-QJ for recovery
errors: No known data errors
root#
Ahora si, ya esta espejado
root# zpool status -v rpool
pool: rpool
state: ONLINE
scan: resilvered 22.6G in 0h5m with 0 errors on Thu Jun 18 09:21:48 2015
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
c1t0d0s0 ONLINE 0 0 0
c1t1d0s0 ONLINE 0 0 0
errors: No known data errors
root#
Ahora a copiarle el sector de booteo al disco que agregue como mirror
root# installboot -F zfs -f /usr/platform/`uname -i`/lib/fs/zfs/bootblk /dev/rdsk/c1t1d0s0
root#
Si lo ejecuto sin la opcion -f , me da un error como el siguiente
root# installboot -F zfs /usr/platform/`uname -i`/lib/fs/zfs/bootblk /dev/rdsk/c1t1d0s0
WARNING: target device /dev/rdsk/c1t1d0s0 has a versioned bootblock but no versioning information was provided.
bootblock version installed on /dev/rdsk/c1t1d0s0 is more recent or identical
Use -f to override or install without the -u option
