On a Exchange 2003 SP2, W2003SP2, Veritas Software Foundation 4.3 MP2, Scanmail 7.0
we have an error: ClusSvc Warning Failover Mgr 1146 N/A SCHGVAEX001 The cluster resource monitor died unexpectedly, an attempt will be made to restart it.
The cluster gets restarted causing about 3 minutes downtime for users. It repeats few times during a month. The Ms KB http://support.microsoft.com/kb/886652/en-us does not apply in our case. The problem started after Windows Server 2003 SP2.
MS recommends to run non-MS cluster resources in separate monitors - option option “Run this resource in a separate Resource Monitor” of the cluster admin console. I applied this to Veritas volumes and Scanmail
Let's wait and see what it will bring.
update: problem is gone!!!
update: not really, error is back again. I hope it will not be so often.