Hi, I've had a persistent problem with Unraid whereby a lot of disk activity seems to freeze the server and the dockers running on the Unraid host then become unresponsive. The containers running in a VM on the same system are fine as they are using isolated CPU cores. I've been searching for possible solutions but not found anything that solves it for me. Apart from the freezing during disk activity, everything else works fine. Diagnostics attached. I'd greatly appreciate any tips or possible solutions.

tower-diagnostics-20250419-0813.zip

system  shareUseCache="prefer"  # Share exists on cache, disk6

 

What contents of your system share is located on disk6? It appears your docker image file is located in the system share, if the docker.img is physically on disk6 you're in for a bad time.

39 minutes ago, MowMdown said:

system  shareUseCache="prefer"  # Share exists on cache, disk6

 

What contents of your system share is located on disk6? It appears your docker image file is located in the system share, if the docker.img is physically on disk6 you're in for a bad time.

 

Thanks for replying. Yes, it looks like the docker.img and libvert.img (VM?) are located in system and are on disk6. Should this set set to cache only? Not sure how this came about as I've been using the same Unraid setup for several years.

 

EDIT: Primary storage is set to cache and secondary storage now to none.

Edited April 19, 20251 yr by paulmorabi

Don't set it to cache only until AFTER you move the files to the cache pool. You will need to completely disable docker and vm service from the main settings menu before you can move the files.

 

See below for how to do it, pay specific attention to the red and match it exactly. Then when you run mover it should move everything as long as no duplicate files exist on cache pool. Also any files still in use won't move either.

 

Edited April 19, 20251 yr by MowMdown

Thank you. That worked. I will monitor and see if I get freezes from now onwards.