Example--Mirroring User-Defined File Systems
The following example shows creation of mirror d4 to mirror /home, which resides on c0t0d0s4. Mirror d4 consists of submirror d14 on partition c0t0d0s4 and submirror d24 on partition c2t2d0s4. The /etc/vfstab file entry for /home is updated to use the mirror name d4. Disk c2t2d0 is a multiported disk, so the localonly property is enabled.
(Create the mirror:) # metainit -f d14 1 1 c0t0d0s4 d14: Concat/Stripe is setup # metainit -f d24 1 1 c2t2d0s4 d24: Concat/Stripe is setup # metainit d4 -m d14 d4: 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/d4 /dev/md/rdsk/d4 /home ufs 2 no global (Attach the second submirror:) # metattach d4 d24 d4: Submirror d24 is attached (View the sync status:) # metastat d4 d4: Mirror Submirror 0: d14 State: Okay Submirror 1: d24 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 |
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