The MD3000i doe not have an audible alarm, but you can setup email notification for specific critical alerts. Instructions are in the owner manual. Have you tried to redistribute the virtual disks? It is an option under the Support tab in your management software for the MD3000i. Click on the Redistribute Virtual Disks to change VD to original owners.

In the same window that shows you the error, there is an entire section that walks you through troubleshooting for the error. Did you walk through all those steps? Recheck will clear the error only if the problem that caused the error has been fixed. If following the steps in the error message does not fix the issue, I would recommend calling support.

You are correct. The MD3000i does not have any provision for soft restart or shutoff. There is a way to place a single controller offline and bring it back online. I believe this is under the tools or support tab but I'd have to check. If you want to restart the whole array, ensure that you have all disks unmounted or all attached host servers shut down. This will ensure that all data in the cache has been written to the array. Once that is complete, you can use the switches at the back of the array to power it down.

-Mohan.