RHV: Hosts fail to activate if ISO/Export Domain is unreachable
Issue
- Data Center won't come up after power outage or scheduled maintenance.
- Hosts are switching between Not-Responding and Up state.
- Cannot start VMs
- Cannot manage the environment after complete shutdown and restart.
- Following messages are seen in the Events tab:
VDSM command ConnectStorageServerVDS failed: Message timeout which can be caused by communication issues
Host is not responding. It will stay in Connecting state for a grace period of 60 seconds and after that an attempt to fence the host will be issued.
Environment
- Red Hat Virtualization 4.x
- ISO/Export Domain is on a NFS share that is currently down or unreachable.
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