When attempting to upgrade the firmware on a Dell MD3860f or Netapp E5660 controller, the pre-upgrade check will first run. You may get the following error.
The Event Log has too many entries. This is usually seen in older storage arrays that have logged many messages. The threshold for 'destination driver events' is 10.
If the storage array is healthy and this is the only message you see, you can either proceed with the firmware upgrade by check the box to "Allow upgrade when the pre-upgrade check fails". Or you can clear the event log.
To clear the event log, do the following: