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. Disk c2t2d0 is a multiported disk, so the localonly property is enabled.
(Create the mirror:) # metainit -f d111 1 1 c0t0d0s3 d111: Concat/Stripe is setup # metainit -f 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 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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