Wednesday, March 23, 2011

Advanced Configuration

NetApp & EMC NFS VMkernel Advanced Configuration Best Practices

NFS.HeartbeatDelta - 12 (default 5)
ESX checks for reachable storage every 12 seconds
NFS.HeartbeatTimeout - 5 (default 5)
Number of seconds before a heartbeat times out & another is sent
NFS.HeartbeatMaxFailures - 10 (default 3)
Number of consecutive heartbeat failures required to mark datastore as unavailable
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