During ANDU 'shelf firmware show-update-status' shows "running" but "0" in-progress

• ONTAP 9
• ANDU
• Shelf firmware update

During an Automated Non Disruptive Upgrade (ANDU) of ONTAP 9, if the command "storage shelf firmware show-update-status" is executed during the first node's automated reboot and giveback, the output will indicate that a shelf firmware update is "running" but there is a count of "0" updates "in-progress".

• In the example below, the command was run after "node2" had just completed its ANDU reboot and updated its ONTAP version, but "node1" had not yet rebooted as part of the ANDU process:

cluster::*> storage failover show
                              Takeover          
Node           Partner        Possible State Description  
-------------- -------------- -------- -------------------------------------
node1          node2          false    Connected to node2,
                                       Takeover is not possible: The
                                       version of software running on each
                                       node of the SFO pair is incompatible,
                                       NVRAM log not synchronized
node2          node1          false    Connected to node1,
                                       Takeover is not possible: The
                                       version of software running on each
                                       node of the SFO pair is incompatible,
                                       NVRAM log not synchronized
2 entries were displayed.

cluster::*>  storage shelf firmware show-update-status
                   Update  In-Progress
Node               Status        Count
------------------ ------- -----------
node2              idle              -
node1              running           0
2 entries were displayed.

• The following message may also be seen on the serial console or event log during the reboot:monitor.globalStatus.critical:EMERGENCY]: Controller failover of node2 is not possible: downloading shelf firmware