We have 8 Virtual Hosts connected to a HP P2000 SAN. We use separate network for iSCSI, Live Migration, CSV and the main 'Production' network.
We are finding that VM's drop off the network with a "Critical error". What in fact has happened is that the host has lost connection to one of the Cluster Storage folders on c:\cluster storage. If you then look at another host, it can see these folders and its contents. So we have to import the VM onto that host to get it functional again.
We have checked iSCSI initiator and all connections are there. Also MPIO appears to be correct. Rebooting the host seems to fix the issue and the folders contain VMs again. However when you try and move VMs back onto that host, some of the folders go offline again. Cluster validation has been run on all hosts and no issues are reported.
We have various event log entries including this:
Cluster Shared Volume 'CSV19' ('CSV19') is no longer accessible from this cluster node because of error '(1460)'. Please troubleshoot this node's connectivity to the storage device and network connectivity.
Has anybody seen this issue before?
Thanks in advance
Shaun