I had the same issue with orphaned images. Someone mentioned it earlier in this thread and so I turned on "Advanced View" while viewing Dockers and all the way at the bottom it lists them all. I started to delete them one by one and thought there must be a better way to get rid of these all.
There is. If you have the user scripts plugin there is a script called "delete_dangling_images." I ran that and it cleared them all. Went from 75% docker image utilization to 37%. The user script also allows you to set it on a schedule to automatically do this cleanup at a set interval. I have it set now to cleanup each month.
Delete unused? As in if it’s not in the array anymore? Most of these are still in the array but because of the new config where I moved them around they populated as a historical device.
One question I hope someone can help me on. After doing this I noticed that several of the drives appeared in the list of historical devices. I noticed that there is an "x" to delete it. I want to make sure that if I do that I won't be ruining anything. I've never really seen this section before and I'm confused what will happen if I hit that x button.
I was curious if I could transfer files from my PC to the unRaid drive using a physical cable (USB or ethernet) instead of mounting network drive on my PC. Is that possible? The goal is the get the fastest transfer rate when moving files over and/or accessing the drive.
Just wanted to add that it took 1 day, 18 hours to rebuild the first 20TB disk. Because my biggest size disk in the array was 14TB before, once it reached 14TB the speed of the rebuild almost doubled. Makes sense.
Now onto Parity Disk 2 and then the disabled disk.