Become superuser on the node.
Ensure that the diskset has been created.
For instructions, see How to Create a Diskset.
List the DID mappings.
# scdidadm -L |
Choose disk drives that are shared by the cluster nodes that will master or potentially master the diskset.
Use the full device-ID path names when you add disk drives to a diskset.
The first column of output is the DID instance number, the second column is the full physical path name, and the third column is the full device-ID path name (pseudo path). A shared disk drive has more than one entry for the same DID instance number.
In the following example, the entries for DID instance number 2 indicate a disk drive that is shared by phys-schost-1 and phys-schost-2, and the full device-ID path name is /dev/did/rdsk/d2.
1 phys-schost-1:/dev/rdsk/c0t0d0 /dev/did/rdsk/d1 2 phys-schost-1:/dev/rdsk/c1t1d0 /dev/did/rdsk/d2 2 phys-schost-2:/dev/rdsk/c1t1d0 /dev/did/rdsk/d2 3 phys-schost-1:/dev/rdsk/c1t2d0 /dev/did/rdsk/d3 3 phys-schost-2:/dev/rdsk/c1t2d0 /dev/did/rdsk/d3 … |
Take ownership of the diskset.
# metaset -s setname -t |
Specifies the diskset name
Takes ownership of the diskset
Add the disk drives to the diskset.
Use the full device-ID path name.
# metaset -s setname -a drivename |
Adds the disk drive to the diskset
Full device-ID path name of the shared disk drive
Do not use the lower-level device name (cNtXdY) when you add a disk drive to a diskset. Because the lower-level device name is a local name and not unique throughout the cluster, using this name might prevent the metaset from being able to switch over.
Verify the status of the diskset and disk drives.
# metaset -s setname |
Do you intend to repartition disk drives for use in metadevices or volumes?
If yes, go to How to Repartition Disk Drives in a Diskset.
If no, go to How to Create an md.tab File to define metadevices or volumes by using an md.tab file.