zoneadm Commands Hanging at Bootup into 11.4, Cluster 4.4 Following Upgrade (25743399)

Problem Summary: When booting Oracle Solaris 11.4, following an upgrade to Oracle Solaris Cluster 4.4, sometimes zoneadm commands hang, immediately after the reboot, when issued against a zone managed by the ORCL.ha-zone_sczbt resource type or a zone of a zone cluster.

Workaround: Reboot the node where the commands are hanging.

Workaround: Kill the zoneadm command from another terminal window and try again later.