Create an /etc/lvm/md.tab file on each node in the cluster. Use the md.tab file to define Solaris Volume Manager volumes for the disk sets that you created.
Use the full DID device names in the md.tab file in place of the lower-level device names (cN tXdY). The DID device name takes the form /dev/did/rdsk/dN.
phys-schost# cldevice show | grep Device
=== DID Device Instances === DID Device Name: /dev/did/rdsk/d1 Full Device Path: phys-schost-1:/dev/rdsk/c0t0d0 DID Device Name: /dev/did/rdsk/d2 Full Device Path: phys-schost-1:/dev/rdsk/c0t6d0 DID Device Name: /dev/did/rdsk/d3 Full Device Path: phys-schost-1:/dev/rdsk/c1t1d0 Full Device Path: phys-schost-2:/dev/rdsk/c1t1d0 …
See Example 8, Sample md.tab File for a sample md.tab file.
To avoid possible confusion between local volumes on different nodes in a cluster environment, use a naming scheme that makes each local volume name unique throughout the cluster. For example, for node 1 choose names from d100 to d199. For node 2 use d200 to d299.
See your Solaris Volume Manager documentation and the md.tab(4) man page for details about how to create an md.tab file.
The following sample md.tab file defines the disk set that is named dg-schost-1. The ordering of lines in the md.tab file is not important.
dg-schost-1/d0 -m dg-schost-1/d10 dg-schost-1/d20 dg-schost-1/d10 1 1 /dev/did/rdsk/d1s0 dg-schost-1/d20 1 1 /dev/did/rdsk/d2s0
The sample md.tab file is constructed as follows.
The first line defines the device d0 as a mirror of volumes d10 and d20. The –m signifies that this device is a mirror device.
dg-schost-1/d0 -m dg-schost-1/d0 dg-schost-1/d20
The second line defines volume d10, the first submirror of d0, as a one-way stripe.
dg-schost-1/d10 1 1 /dev/did/rdsk/d1s0
The third line defines volume d20, the second submirror of d0, as a one-way stripe.
dg-schost-1/d20 1 1 /dev/did/rdsk/d2s0
Activate the volumes that are defined in the md.tab files. Go to How to Activate Volumes.