First, I'm running version 4.7.

 

I have my server connected to an APC UPS in case of power outage.

 

However, the last couple of times I had a power failure, I was connected through a telnet session from my desktop PC which is not connected to a UPS.  I think that may be causing the problem - that there is a disconnected process from the lost telnet session.

 

When the power goes out, I am unable to shut down the server.  I assume because there is an open process that is not being closed.

 

It happened again today and I had a telnet session from one desktop PC that was also connected to a UPS.  But I was also copying a file from another PC that was not connected to a UPS.

 

Also, my networking switches and router are not connected to a UPS.

 

I was able to get to the Tower main page and initiate a stop on the array, but it is stuck unmounting one of the disks.

 

Is there any way to shut down the server without pulling the plug or doing a hard reset?

Run this command via telnet if possible:

fuser -mv /mnt/disk* /mnt/user*

 

That will tell you what processe is keeping it open

Thanks, I'll try that next time it happens.

 

This time, it seemed to free up when I shut down the PC that was connected to the server, which actually makes sense.  It just didn't do that before when the connected PC lost power.