Question : Exchange Restarts Unknown reason

we are running veritas cluster on our exchange 2003 3 active 1 passive cluster. This replicated to DR cluster 3 nodes.

Recently moved 2 production node in new data center and upgaded the firm ware of the blades to latest. So 2 nodes ( 4) and (3) node in new data center and 2 in old. Till this time every thing was working fine.

When we moved the other 2 nodes (1) and  (2 )to the new data center and upgraded the matching firmware, 4 days later the node 1 which was moved later was found in hung state and and was munnually rebooted. later that evening it hung again and the DR servers all th3 of them restarted.

DR issue.
we made the production server up and running again. But the DR node could not start replication as soon as VVR IP replication is started on DR node 1 it hungs and restarts itself and other DR 2 nodes also. Still not resolved and not running replication on the DR 1 node other 2 DR nodes are replicating But they also hung if replication is tried mannually/ automatically on DR 1 node.

Problem with production node.

The Node 1 in Production restarts it self alteast once in 2 days and cluster failsover to other node.

In event only thing which we can see is Event ID 7036 7035 and
event 10035
Timer was not called for quite sometime (ticks=208)
event 57
Failed GET SENSOR READING, sensor 7
Event 57
NetFN 0x6, command 0x25 timed out


cannot figure out what could be the issue.

Answer : Exchange Restarts Unknown reason

I found a solution it was the Firmware there is known bug in HP with this event.