i also had frequent events like that on my OCUM 7.0 . and two weeks ago i found KB: and since i rebooted the server (as the KB says) i haven't seen any new event
iv'e just checked and the last event was: (proving it's indeed fixed. as we had these events every few nights), seems like permanent fix already baked in OCUM 7.1
Event: Cluster Monitoring Failed (Triggered Time: 03 Feb 2017, 12:33)
State:Obsolete (03 Feb 2017, 13:03)
Obsoleted Cause:The issue is fixed and the event is obsolete.
Source Annotations:environment:Backups, Location:DC2
Triggered Time:03 Feb 2017, 12:33
Trigger Condition: Monitoring failed for cluster XXX. Reason: Cannot update server (com.netapp.oci.server.UpdateTaskException [339-132-983])