This past weekend the cache batteries failed on our BlueArc Titan, setting off an audible alarm. BlueArc sent us replacement batteries, but until they arrived, the alarm could not be turned off. The "acknowledge" button worked, but a few seconds later the system would apparently "re-notice" that the battery had failed and trigger the alarm again. It was loud!
Finally replacing the batteries on the machine was a somewhat nerve-wracking experience. It involved actually removing the RAID controller from the Titan and opening the canister in which it's housed. There are two redundant RAID controllers in the Titan, so pulling one shouldn't be too much trouble. But still, it's not something one feels entirely comfortable doing! It seems to have gone OK, though. It's been about 30 hours and nothing has died yet.
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