"Takeover is not possible: Local node missing partner disks" on a node in HA

Applies to

• ONTAP 9
• High availability (HA)

Issue

• ONTAP reports takeover not possible: 

::>Storage failover show
                              Takeover
Node           Partner        Possible State Description
-------------- -------------- -------- -------------------------------------
Node B         Node A         true     Connected to Node A
Node A         Node B         false    Connected to Node B, Takeover is not
                                      possible: Local node missing partner
                                       disks

• Disk is failed with Failed-Unsupported status from node A.

::>node run -node <node A> sysconfig -v

10.20: NETAPP   X376_HLBRE08TA07 NA01   0.0GB 0B/sect (Failed-Unsupported)

• Node B shows the effected disk as Failed

::>node run -node <node B> sysconfig -v

10.20: NETAPP   X376_HLBRE08TA07 NA01 7486.1GB 520B/sect (<serial of disk>) (Failed)

• The effected disk is moved to maintenance/testing by the owner node and the HA partner is reporting missing partner disks.