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ONTAP reports that a cluster switch has rebooted, when the switch did not reboot

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Category:
ontap-9
Specialty:
hw
Last Updated:

Applies to

  • ONTAP 9
  • Cisco Nexus Cluster switches
  • CN1610 Cluster switches

Issue

  • ONTAP generates an alert indicating that a cluster switch has rebooted:

Cluster::*> system health alert show -alert-id SwitchReboot_Alert
               Node: Cluster-01
           Resource: clussw1(FOX0000ZZZZ)
           Severity: Minor
    Indication Time: Wed Jan 2 00:00:00 2019
           Suppress: false
        Acknowledge: false
     Probable Cause: The cluster switch "clussw1(FOX0000ZZZZ)" has
                     recently rebooted.
    Possible Effect: Communication problems and cluster connectivity issues
                     might occur.
 Corrective Actions: 1) If the cluster switch was not rebooted on purpose, then
                     check the switch to ensure that it is operating normally.
                     2) If errors persist, contact technical support for
                     further assistance.
 

EMS Logs

    
Wed Jan 2 00:00:00 UTC [Cluster-01: cshmd: hm.alert.raised:alert]: Alert Id = SwitchReboot_Alert , Alerting Resource = clussw1(FOX0000ZZZZ) raised by monitor cluster-switch
Wed Jan 2 00:05:00 UTC [Cluster-01: cshmd: hm.alert.cleared:notice]: Alert Id = SwitchReboot_Alert , Alerting Resource = clussw1(FOX0000ZZZZ) cleared by monitor cluster-switch

 

Switch Uptime

  • The cluster switch shows no evidence of a reboot and the uptime confirms that no switch reboot occurred:

(CN1610-sw1) #show sysinfo

System Description............................. NetApp CN1610, 1.3.0.3, Linux 3.8.13-2de1cc1c
System Name.................................... xxx.na.com
System Location................................
System Contact.................................
System Object ID............................... 1.3.6.1.4.1.789
System Up Time................................. 504 days 13 hrs 51 mins 3 secs
Current SNTP Synchronized Time................. Apr  6 06:08:25 2022 UTC

 

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