I received SCOM alerts after applying the November SU that I'd lost my same-subnet, two-node, IP-less DAG/cluster. I browsed the FSW share and it was empty (it should have had a GUID-named folder in it).
Example subjects of email alerts received from both cluster nodes via SCOM:
Cluster Service Alert: The Cluster service is shutting down because quorum was lost Priority: 1 Severity: 2
ClusSvc Alert: Cluster service has determined that this node does not have the latest copy of cluster configuration data Priority: 1 Severity: 2
I changed the DAG network to Manual configuration, saved, and then immediately changed it back to Automatic configuration, saved again, and the GUID-named folder in the FSW reappeared. I thought that fixed it, but I'm still getting alerts this morning:
Cluster Service Alert: Cluster resource failed Priority: 1 Severity: 1
Cluster Service Alert: Unable to access witness resource Priority: 1 Severity: 2
The message headers indicate that SCOM generated these messages this morning, so these are not seemingly old messages. The VerifyShareWriteAccess.txt file is correctly being updated every minute. Tagging Nino_Bilic in case this is happening to others. :) Exchange still appears to be working; we're just getting these SCOM alerts.