I had large storms in the area on Monday (8/26 around 19:11) and lost power, my UPS supported the load and iniciated a shutdown of my unRAID server as expected (I think). I recently got power back and begain restarting my server, but once it was up I noticed I got an unclean shutdown error for the array. I dug into the logs and I cannot find anything jumping out to me as to why it might belive it was an unclean shutdown. 

 

And yes, incase anyone is wondering, I have my UPS shutdown level set very high. I don't often get power blips lasting longer than 5-10 seconds. If the power is out more then 30 seconds, it isn't coming back soon. So in an effort to save my batteries I shutdown early.

 

Log attached.

syslog-previous_truncated.txt

Looks like there wasn't enough time, increase the Shutdown timeout in Disk Settings, first you can time how log it takes for the array to normally stop, then add 30 secs or so.

Just for my own knowledge, how can you tell? I didn't see anything about it 'forcing' an unmount or anything in the log.

 

I saw that was a common solution/problem when searching this, but I couldn't see any signs in the log. 

Aug 26 19:12:17 unRAID apcupsd[5278]: Initiating system shutdown!
...
Aug 26 19:13:49 unRAID root: Status of all loop devices

 

First line is when the shutdown started, the second one appears when Unraid is going to force it, the default shutdown timeout is 90 secs, there are 92 secs between those lines, so I assume you are using the default, and it's not enough.