Example--Mirroring Unmountable File Systems
The following example shows the creation of mirror d1 on the node phys-schost-1 to mirror /usr, which resides on c0t0d0s1. Mirror d1 consists of submirror d11 on partition c0t0d0s1 and submirror d21 on partition c2t2d0s1. The /etc/vfstab file entry for /usr is updated to use the mirror name d1. Disk c2t2d0 is a multiported disk, so the localonly property is enabled.
(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 |
- © 2010, Oracle Corporation and/or its affiliates