HP StorageWorks Enterprise Virtual Array release notes (XCS 09501200) (5697-0013, June 2009)

If this problem occurs, follow these steps:
1. Close the HP MPIO DSM Manager GUI.
2. Close Disk Management.
3. Stop and restart the Virtual Disk services.
4. Open Disk Management, and then rescan or Diskpart rescan to enumerate the LUNs.
If these steps are not successful, reboot the server.
Controller failover can cause MSCS cluster failures
During a controller failover you may receive a message:
The node lost communication with cluster node <node name>.
Currently, it appears the issue is related to Windows Server 2003 and complex data replication
configurations. HP is continuing to investigate this issue.
HP StorageWorks Enterprise Virtual Array release notes (XCS 09501200) 15