Hello,
Does the failover fail on all nodes in the cluster, or just the passive node(s)?
Prior to bringing the resource up in cluadmin, can you successfully import/deport the Disk Group on each cluster node using the Veritas Enterprise Administrator (VEA)?
If it is only failing on your passive nodes, can you go to the VMDg resource properties from cluadmin on that server and verify you receive no errors when opening the properties view, and also that you have a 'Parameters' tab listed which is where the Disk Group name should be specified (viea the drop-down box)?
You may also want to go into Add/Remove Programs > Veritas Storage Foundation for Windows (Server Components) > Change > Add/Remove Components and verify the MSCS option is installed.
If you do get an error, or the parameters tab is missing, please try running the following commands on that node:
regsvr32 /u vxresext.dll
regsvr32 vxresextd.ll
cluster /regext:vxresext.dll
You can find these in technote: http://support.veritas.com/docs/269703
I hope this helps, if not, please provide further information and I'll see if I can assist.
- Robert