The Security Analytics system UI repeatedly shows an error for failed disks. This is due to it not maintaining a connection on the preferred path. The error can be temporarily resolved with "SMcli -n array2 -c 'reset storageArray volumeDistribution;'", but it will fail over within a few hours again and not be on preferred path.
The lithium batteries may have reached a state where they need a deep discharge and recharge cycle performed. If the batteries are unusable, the cache cannot be maintained in the event of a power failure. For performance reasons, the controller with the failed battery will not support I/O and the volumes will be served through the alternate controller.
Netapp E5660 storage arrays
Netapp has recommended a procedure to refresh the batteries in both controllers on the storage array. There should be no impact to the data I/O and can be done on a live system.
Remove -> This is all done on Santricity, so no need to login as root. Step one is to redistribute the volumes, and then run the battery relearn commands. You will want to collect logs from before and after to verify the state of the battery
Start the scheduled battery learn cycle via Santricity's "CLI(Command Line Interface):"
set storageArray learnCycleDate daysToNextLearnCycle=0 time=HH:MM;
SMcli -n array0 -c 'set storageArray learnCycleDate daysToNextLearnCycle=0 time=HH:MM;'
(Where HH:MM is the current time plus 2 minutes, in 24 hour format)
Once this is done, the controllers needed to be rebooted -
If the graphic shows the drives, click Show back of shelf.
The graphic changes to show the controllers instead of the drives.
Click the controller that you want to reset. The controller’s context menu appears.
Select Reset, and confirm that you want to perform the operation.
-> SMcli -n array0 -c 'reset storageArray volumeDistribution;'
Once completed, wait around 10 minutes, and run reboot on controller "B" by running steps 1-5 above but changing a to be in step 4.
Volumes should remain on the preferred controller. Collect new logs and attach them to the case to allow support to investigate and verify.
Instructions from Netapp