Hello all,
This week i finally tried to resolve the high writing to my cache drive that a lot of people have been experiencing. I decided to reformat my cache with XFS following this guide:
https://wiki.unraid.net/Replace_A_Cache_Drive
Docker and VMs are all disabled. Everything went fine until the point of running mover the 2nd time to get the data back on the newly formatted XFS cache.
The first attempt I noticed Mover seemed to be running VERY slow (like 30MB/s), but I figured that was just because most of the 400GB is plex metadata. So I let it go overnight and found it unresponsive in the morning, no ping or anything.
I don't keep the server in a place convenient to hook up a monitor, so I had to force a shut down and hooked it up at my desk to check it out. For some reason it would not boot up, it just got stuck on a blinking cursor. This has never been an issue before and I did not change anything in the BIOS, but I decided to check out the boot settings. I put the USB stick first and disables UEFI, and luckily that worked and got back up and running. Not sure why this suddenly was an issue, so i figured it was just a fluke.
After I got it back up I saw it only transferred about 40GB of data (about 10% of the total 400GB cache data). Let the automatic parity check run over 30 hours (12TB parity) which repaired a few errors, and this morning I started Mover again to resume the data transfer to cache, and it has frozen AGAIN. This time is does ping, but Web UI is unresponsive and can't login via SSH. Hooked up a monitor before shutting it off, and there was no video output, so i had to hard reboot again.
luckily a hard reboot worked without getting hung on a blinking cursor like last time. Turns out Mover has now done 300GB of data, so only about 75% of the total 400GB. Gonna let parity check finish again before doing anything else.
Pretty sure it's not an overheating issue or anything. Mover is going quite slow, CPU, RAM, and HDDs are barely utilized at all. I've put the system under MUCH more abuse over the last 4-5 months running all kinds of dockers and a VM. Has anyone seen anything like this before? Any suggestions? I've attached diagnostic files in case anyone has time to take a look.
Thanks for reading and thanks for any help!