Hello, I am preparing to add two new "pre-cleared disks" along with a PCIe Controller.  Following the recommended process, I have checked Parity on my current setup (4 disks incl Parity) and it is clean.  I halted the UnRaid Server, added the PCIe Card and new disks and started the Server.  At that point I attempted to stop the Array in order to add the new disks via the Device Manager, format them, and then check Parity. 

 

After several attempts and now over 3 hours, one of my drives in the original Array is still attempting to unmount.  Has anyone seen this problem? - A Failure to Unmount!  If so what should I do, it does have data and I could replace it with one of my new drives if necessary, but think the Array must be stopped to do anything at this point.

 

Please help, thanks.

 

Dave

I have seen it. forcing the system to restart will trigger a parity check, after that I was fine. Bit of a scare because initially my user shares were gone and also not visible anymore in the unraid configuration interface, few minutes later (I actually went to get a cold coke t orecover) they were back and everything functions perfectly.

You are correct array must be stopped. Do you have any add ons? Do you have a open telnet session that is connected to the drive that won't unmount?

 

Usually they won't unmount due to some open file or directory.  Stop, kill or close what is holding it up and it should unmount gracefully.

Hello All,

 

Thanks for the responses.  Daniel, I think you were on the right track.  I have a Tivo with "saved episodes/movies" on my main computer desktop.  It runs a background Tivo App in the systray so thought it might be the culprit.

 

I then rebooted the Server and tried again w/o results, same problem.  I checked all the other computers with exception of my current link, even disconnecting the Server from the network briefly.  Same problem.

 

I then "guessed" at my add-ons - MiniDLNA was running and I closed it - voila the system STOPPED! 

 

For future referrence, apparently the MiniDLNA daemon runs in continuous background, checking the Movies/Music/etc. constantly.  It was interesting that it was isolated to only 1 drive of my current 3, but perhaps that is where the bulk of my Movies reside.

 

Problem at least for the moment SOLVED!

 

Thanks

 

Dave

Lsof will help I'd open files. I try not to run too much directly on unRaid but this type of issue seems to happen to me every so often. Glad you got it under control.