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ONTAP Select: Node Unresponsive Due to ESXi Backend Disk and RAID Controller Failure – NFS Mounts Timeout, Aggregates “Unknown”

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ontap-select
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virt
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Applies to

  • ONTAP Select (OTS) 
  • VMware ESXi
  • Hardware RAID
  • NFS

Issue

Users were unable to mount an NFS export from ONTAP Select node:

mount.nfs: Connection timed out

  • Node’s root and data aggregates showed as unknown
  • Node was unresponsive to CLI commands
  • SnapMirror replications failed, application performance was degraded, and critical services (such as instant payments) were impacted
  • Cluster logs showed multiple wafl.cp.toolong:error and HAGroupNotification(MULTIPLEDISKSMISSING)ERROR events
  • Attempts to gracefully shut down or failover the node via ONTAP CLI failed due to timeouts

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