We have recently installed 2 NW 6.5 cluster on a customer site.
This two clusters are using iSCSI to connect to two Sanrad V-switches.
These two Sanrad iSCSI V-switches are also clustred with failover
functionality and are connected by fiber to a Nexsan Sataboy storage.

The problem arises when one of the two Sanrad switshes fails and the
other should take over. During this migration the 2 NW 6.5 Clusters loses
connection to the SBD partition and abends.

Are there any parameters that we can tune in order to keep the NW 6.5
clusters up-and running while the Sanrad switches migrates (failover)?