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Mediator Connections status failed after patching the RHEL host

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metrocluster
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Applies to

  • ONTAP 9
  • ONTAP Mediator 1.10
  • MetroCluster

Issue

  • After applying a routine Red Hat security patch and upgrading the kernel (kernel-5.14.0-570.52.1.el9_6.x86_64) on the mediator server (RHEL 9.6), the ONTAP Mediator service becomes offline or unreachable from the MetroCluster configuration. 
  • This results in the mediator connection status showing “false” or “not connected” in ONTAP, and the following errors may be observed:

        MetroCluster configuration-settings mediator show

         MediatorIP      Port   Node          Configuration Connection
                                                     Status        Status
        ---------------------------------------------------------------------
        10.133.x.1xx    31784  node_01        true          false

  • Reinstalled ONTAP mediator and SCST package but issue persist.
  • ONTAP_mediator service and mediator_scst service are up in mediator 1.10.
  • Ports 31784 and 3260 are open.
  • Adding mediator from MCC, we got below error and the sudoers file have the required entries.
     
    Nov 08 11:09:27 bjssx0010102 dzdo[242460]:   netapp : command not allowed ; PWD=/opt/netapp/lib/ontap_mediator ; USER=root ; COMMAND=/usr/local/sbin/scstadmin -noprompt -add_target iqn.2012-05.local:mailbox.target.47e5b24b-d889-11ee-952>
    Sorry, user netapp is not allowed to execute '/usr/local/sbin/scstadmin -noprompt -add_target iqn.2012-05.local:mailbox.target.47e5b24b-d889-11ee-9523-d039ea57302c:9cc30feb-d88b-11ee-b294-d039ea57382d:1 -driver iscsi -attributes MaxSessions=4,IncomingUser=mccadmin ac8b56bb910c67f8' as root on bjssx0010102.

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