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ONTAP Select node reboots after NVMe controller command time out

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Applies to

ONTAP Select

Issue

ONTAP Select Node restarted with the following EMS errors :
  • clock: nvme.cmds.timedout:notice]: The NVMe controller of "nvmeX" has detected 1 commands that have timed out. Command recovery action: resetting controller.
This error is coupled to :
  • vm.dev.diskSlowIO:error]:The read request on disk scsi1:1:0 took 40 seconds (datasize 24576 bytes, threshold 20 seconds).
  • kernel: Nblade.nfsLongRunningOp:debug]: Detected a long running network process operation.

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