Fix Exchange DAG Failovers Caused by Snapshots
July 3rd, 2012 Posted in Exchange, VirtualizationBy changing the following thresholds you can likely prevent unexpected failover of the DAG.
cluster.exe /prop SameSubnetDelay=2000:DWORD
cluster.exe /prop CrossSubnetDelay=4000:DWORD
cluster.exe /prop CrossSubnetThreshold=10:DWORD
cluster.exe /prop SameSubnetThreshold=10:DWORD
To change back to the defaults…
cluster.exe /prop SameSubnetDelay=1000:DWORD
cluster.exe /prop CrossSubnetDelay=1000:DWORD
cluster.exe /prop CrossSubnetThreshold=5:DWORD
cluster.exe /prop SameSubnetThreshold=5:DWORD
To view your current settings.
cluster.exe /prop
2 Responses to “Fix Exchange DAG Failovers Caused by Snapshots”
By Carlos Rotver on Jul 4, 2013
Hello,
Question: If I run these commands, Can a Failover occur?? Are these danger free?? =)
Regards.
By cpfarhood on Aug 28, 2013
Yes! It works as expected.