[Unraid 6.9.2 Parity check finished, 100 errors]

Sorry for reporting back late - got distracted with house stuff.

I took the server out, cleaned and re-seated all of the connectors. Ran extended smart test, followed by read-only parity - everything is back to normal. Many thanks for help.

Given my random collection of old disks (and this scare!) it's probably time to slowly start to swap the disks for the new ones. Probably I have to do it slowly, to avoid all of the new disks falling into the same valley of the failure bath-curve. On the other hand - if it ain't broke...

[Unraid 6.9.2 Parity check finished, 100 errors]

I can't see any more errors on disk2, the count in the Errors column is 1024 (suspiciously round number).

I have tried some random reads of files from that disk - no errors generated, but then it doesn't tell anything about the disk, it's only a "weak" indication that cables are OK (I have reconnected all connectors).

I started extended self-test, we'll see.

Are these 100 errors fully correctable, or do I have to worry that 100 sectors might be gone forever?

 

The setup is old (well, it was new in 2012  ), so probably time to refresh. Biggest problem - don't want to change all disks at the same time to avoid risk of being in the same place of the bathtub curve with the whole storage. I only ever had one disk fail in this setup - 1ST500LM021-1KJ152_W621GQWL - 500 GB (sdj), which annoyingly was the only cache at that time. Thankfully it wasn't too difficult to rebuild VMs and dockers.

 

[Unraid 6.9.2 Parity check finished, 100 errors]

Unraid was working without problems for a number of years. Suddenly I had "Parity check finished (100 errors)". Below is history of parity checks and diagnostics attached. I don't want to do anything silly, so thought it's better to consult experts on the forum.

 

tower.home-diagnostics-20220316-2206.zip

[[Support] binhex - MinecraftServer]

I had a few powercuts, and I suspect the world data file many have been corrupted (I started to get bigger lags and server hanging up for 60s).

I tried to copy a few worlds from the backup folder into another world folder (naming these world1, world2, ...) and changing the name in server config.

The thing is that the "current" world has the correct seed, but even a backup from 2 days ago has an old seed, that I stopped using at the beginning of November.

How _exactly_ is the backup feature of the java server working? The "current" world that I'm playing on is in folder "world15" (don't even remember why - probably that's what I copied from PC and just didn't rename to "world"). I was trying different backups but all of them have the wrong seed. So is the backup only ever copying the "world" folder, or is it copying the folder that the config file is pointing the server to?