Lateo

Was finally abel to do some more work on this, its currently been rebuilding for several hours. The issue seems to be overloading a rail on the power supply with to many HDD's got another cable to even the load out a bit more and it seems to be working. Thanks for all the help.

It's one cable powering 5 drives and the 2 drives that are failing are on 2 different power cables, I have ordered a new hba to test if that is the issue

I have swapped over the cable used for the drive and attempted a rebuild still having the same issues. i have attached another diag. unraid-diagnostics-20250630-0808.zip

Thanks, I'm currently away from the server so I'll attempt this fix when I return and update the thread

I upgraded one of my drives recently (disk 8) and I was having trouble getting it to rebuild, it kept getting errors and then the rebuild would pause. If I tried to resume it it would disable the disk and just start a parity check. I didn't have much data on it so while it was being emulated I was able to move all the data off and remove the drive from the array then I re-added the drive as a new drive and was able to successfully rebuild the parity. Recently I had a power outage and an unclean shutdown and the drive has failed again and I am getting the same errors. I have tried using both the existing drive and a hot spare I had pre cleared and both failed with the same errors. I am trying to figure out if I just got unlucky with 2 bad drives or if there is another issue causing it. Any help would be greatly appreciated. unraid-diagnostics-20250625-1623.zip

Yeah, they show a file system error and get disabled, so I start the array in maintenance mode so I can run a file system check which repairs it, but then they only way I've found to get them back in the array is to force a rebuild.

Here are the current diagsunraid-diagnostics-20240813-0004.zip

Thanks the drives all came back up except the two that were undergoing the rebuild. Do you know where I should start looking to try and trace down why the same 2 drives keep having file system errors. I had only one configuration change from before the failures started and now, and that was installing a 10g nic which as far as I'm aware shouldnt affect the drives but I have now reverted to test. The only other issue I can think of is the sata card has failed which I am looking into replacing now, but any other areas I should investigate would be greatly appreciated. Thanks

I have been using Unraid for a while now and recently I have had 2 drives showing file system corruption. I ran checks on the file systems in maintenance mode and from what I can tell it gets repaired but I was unable to find a method to get the drives remounted and found some information about having to remove the drives and start the array in maintenance mode and then bring the array down again in order to force a rebuild on the drives. I have successfully done the rebuild but it has happened several times since and I have not been able to find a cause as it seems to happen randomly but on the latest time while remounting the drives to start the rebuild I have had 8 drives showing the error "Unmountable: Unsupported or no file system" including one of the drives needing the rebuild. Checking the log (https://pastebin.com/gYtKwbEB) the is a few errors that I'm afraid I'm out of my depth with. Is there anything I can do to recover these drives or have a lost all this data? This is the first time I've really had any issues with unraid so let me know if there is more information required to help. Thanks