Sun Cluster Software Installation Guide for Solaris OS

Example—Mirroring the Global Namespace

The following example shows creation of mirror d101, which consists of submirror d111 on partition c0t0d0s3 and submirror d121 on partition c2t2d0s3. The /etc/vfstab file entry for /global/.devices/node@1 is updated to use the mirror name d101. Device c2t2d0 is a multihost disk, so the localonly property is enabled.

(Create the mirror)
# metainit -f d111 1 1 c0t0d0s3
d111: Concat/Stripe is setup
# metainit d121 1 1 c2t2d0s3
d121: Concat/Stripe is setup
# metainit d101 -m d111
d101: Mirror is setup
# metattach d101 d121
d101: Submirror d121 is attached
(Edit the /etc/vfstab file)
# vi /etc/vfstab
#device        device        mount    FS     fsck    mount    mount
#to mount      to fsck       point    type   pass    at boot  options
/dev/md/dsk/d101 /dev/md/rdsk/d101 /global/.devices/node@1 ufs 2 no global
(View the sync status)
# metastat d101
d101: Mirror
      Submirror 0: d111
         State: Okay
      Submirror 1: d121
         State: Resyncing
      Resync in progress: 15 % done
(Identify the device-ID name of the mirrored disk's raw-disk device group)
# scdidadm -L
1         phys-schost-3:/dev/rdsk/c2t2d0     /dev/did/rdsk/d2
(Display the device-group node list)
# scconf -pvv | grep dsk/d2
Device group name:						dsk/d2
  (dsk/d2) Device group node list:		phys-schost-1, phys-schost-3
(Remove phys-schost-3 from the node list)
# scconf -r -D name=dsk/d2,nodelist=phys-schost-3
(Enable the localonly property)
# scconf -c -D name=dsk/d2,localonly=true