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SCSI check condition errors, NVME timeouts and link flapping

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ontap-9
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hw
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Applies to

  • AFX-1K
  • ONTAP 9
  • Switch attached to NS224 shelf

Issue

  • Repeated SCSI check condition errors observed on node 1
  • Link flapping (link down and up multiple times) on Ethernet port xx
  • Log Snippets:
node 1:kernel:netif.linkDown:info]:Ethernet xx:Linkdown,checkcable.
node 1:intr:netif.linkDown:info]:Ethernet xx-30:Linkdown,checkcable.
node 1:scsi_cmdblk_strthr_admin:scsi.cmd.checkCondition:error]:Disk device xx.xx.xx.xx: Check Condition: CDB 0x28: df8f9446:0002: SenseData SCSI: aborted command-(0xb-0x90 0x20 0xfc)(713).
node 01:scsi_cmdblk_strthr_admin:scsi.cmd.retrySuccess:debug]:Disk device xx.xx.xx.xx: request successful after retry #1/#0: cdb 0x28: df8f9446:0002(713).
max-01:clock:nvmeof.timeout:notice]:Timeout on subnqn nqn.2014-08.org.nvmexpress:144d:144d:S8XXXXXXXXXXX:NETAPXXXXXXXXXX, controllerID XXXXX, qpairID 0, sequence number 33609.

LINK INFO
Speed:             100G | Duplex:            full | Flowcontrol:       none
Media state:     active | Up to downs:         21 | HW assist:         514k

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