VERITAS Volume Manager 4.1 Administrator's Guide

Administering Cluster Functionality
Administering VxVM in Cluster Environments
Chapter 10 373
To display information about one specific disk group, use the following
command:
# vxdg list diskgroup
where diskgroup is the disk group name.
For example, the output for the command vxdg list group1 on the
master is as follows:
Group: group1
dgid: 774222028.1090.teal
import-id: 32768.1749
flags: shared
version: 70
local-activation: exclusive-write
cluster-actv-modes: node0=ew node1=off
detach-policy: local
copies: nconfig=default nlog=default
config: seqno=0.1976 permlen=1456 free=1448 templen=6 loglen=220
config disk c1t0d0s2 copy 1 len=1456 state=clean online
config disk c1t1d0s2 copy 1 len=1456 state=clean online
log disk c1t0d0s2 copy 1 len=220
log disk c1t1d0s2 copy 1 len=220
Note that the flags field is set to shared. The output for the same
command when run on a slave is slightly different. Also note the
local-activation and cluster-actv-modes fields. These display the
activation mode for this node and for each node in the cluster
respectively.
Creating a Shared Disk Group
NOTE Shared disk groups can only be created on the master node.
If the cluster software has been run to set up the cluster, a shared disk
group can be created using the following command:
# vxdg -s init diskgroup [diskname=]devicename
where diskgroup is the disk group name, diskname is the administrative
name chosen for a VM disk, and devicename is the device name (or disk
access name).