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Node status UNKNOWN following Azure maintenance event

Last Updated:

Applies to

  • Cloud Volumes ONTAP (CVO)
  • Microsoft Azure
  • Maintenance event


Following Azure maintenance event, one of the nodes in an HA pair shows status Unknown and giveback is not possible
::> storage failover show
Node           Partner        Possible State Description
-------------- -------------- -------- -------------------------------------
               Node-02 false    In takeover, Auto giveback deferred
               Node-01 -        Unknown
2 entries were displayed.

::> storage failover show -instance

                                            Node: Node-01
                                    Partner Name: Node-02
                                   Node NVRAM ID: 2328352397
                                Partner NVRAM ID: 2328352403
                                Takeover Enabled: true
                                         HA Mode: ha
                               Takeover Possible: false
                    Reason Takeover not Possible: Local node is already in takeover state.
                                 Interconnect Up: false
                              Interconnect Links: RDMA Interconnect is down
                               Interconnect Type: iWARP
                               State Description: In takeover, Auto giveback deferred
                                   Partner State: Unknown
                             Time Until Takeover: -
         Reason Takeover not Possible by Partner: Local node is already in takeover state.
                           Auto Giveback Enabled: true
                  Takeover Detection Time (secs): 15
                       Takeover on Panic Enabled: true
                      Takeover on Reboot Enabled: true
               Delay Before Auto Giveback (secs): 600
                         Hardware Assist Enabled: false
                           Partner's Hwassist IP: -
                         Partner's Hwassist Port: 0
           Hwassist Health Check Interval (secs): 0
                            Hwassist Retry Count: 2
                                 Hwassist Status:
                 Time Until Auto Giveback (secs): -
                             Local Mailbox Disks: NET-1.1
                           Partner Mailbox Disks: NET-1.2
                     Missing Disks on Local Node: None
                   Missing Disks on Partner Node: None
                             Time Since Takeover: 1d+03:38:53
           Auto Giveback After Takeover On Panic: true
                                         HA Type: shared_storage

                                            Node: Node-02
                                    Partner Name: Node-01
                                   Node NVRAM ID: 2328352403
                               Partner NVRAM ID: 2328352397
                                Takeover Enabled: -
                                         HA Mode: -
                               Takeover Possible: -
                    Reason Takeover not Possible: -
                                 Interconnect Up: -
                              Interconnect Links: -
                               Interconnect Type: -
                               State Description: Unknown
                                   Partner State: -
                             Time Until Takeover: -
         Reason Takeover not Possible by Partner: -
                           Auto Giveback Enabled: -
                  Takeover Detection Time (secs): -
                       Takeover on Panic Enabled: -
                      Takeover on Reboot Enabled: -
               Delay Before Auto Giveback (secs): -
                         Hardware Assist Enabled: -
                           Partner's Hwassist IP: -
                         Partner's Hwassist Port: -
           Hwassist Health Check Interval (secs): -
                            Hwassist Retry Count: -
                                 Hwassist Status: -
                 Time Until Auto Giveback (secs): -
                             Local Mailbox Disks: -
                           Partner Mailbox Disks: -
                     Missing Disks on Local Node: -
                   Missing Disks on Partner Node: -
                             Time Since Takeover: -
           Auto Giveback After Takeover On Panic: -
                                         HA Type: -
2 entries were displayed.

::> storage failover show-giveback -instance

                     Node: Node-01
                Aggregate: CFO Aggregates
Aggregates Giveback State: Disk inventory not exchanged, automatic giveback
Destination for Giveback: Node-02

                     Node: Node-01
                Aggregate: aggr2
Aggregates Giveback State: Not attempted yet
Destination for Giveback: Node-02

Warning: Unable to list entries on node Node-02. RPC: Couldn't make connection [from mgwd on node "Node-01" (VSID: -1) to mgwd at XX.XX.XX.XX]
2 entries were displayed.

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