(Create the mirror:)
# metainit -f d11 1 1 c0t0d0s1
d11: Concat/Stripe is setup
# metainit -f d21 1 1 c2t2d0s1
d21: Concat/Stripe is setup
# metainit d1 -m d11
d1: Mirror is setup
 
(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/d1 /dev/md/rdsk/d1 /usr            ufs     2       no      global
 
(Reboot the node:)
# scswitch -S -h phys-schost-1
# shutdown -g 0 -y -i 6
 
(Attach the second submirror:)
# metattach d1 d21
d1: Submirror d21 is attached
 
(View the sync status:)
# metastat d1
d1: Mirror
      Submirror 0: d11
         State: Okay
      Submirror 1: d21
         State: Resyncing
      Resync in progress: 15 % done
...
 
(Identify the DID name of the mirrored disk's raw disk device group:)
# scdidadm -L
...
1         phys-schost-3:/dev/rdsk/c2t2d0     /dev/did/rdsk/d2
 
(Enable the localonly property of the mirrored disk's raw disk device group:)
# scconf -c -D name=dsk/d2,localonly=true