formerly

I ended up buying an identical motherboard and CPU to test. The old CPU was bad (and the new motherboard was bad). Not sure exactly what the issue was, but it was CPU related.

forgot to attach diagnostics. unraidbr-diagnostics-20240608-2041.zip

@JorgeB new diags. I rolled it back to 6.11.3 because that was readily available in the GUI... It ran at 200MB/sec+ for nearly 4 hours before crashing to a much higher floor of 1.3 MB/sec... I'm going to make sure BIOS is updated.

@JorgeBI will try that. I'm using an m.2 SATA expansion card. I haven't noticed any issues, and the drives all show up fine in Unraid, but have you known those to cause issues?

@JorgeB So memtest completes with 0 errors with both new sticks, but I reran parity attempt twice. Once with stick A in slot A and once with stick B in slot A. It doesn't seem RAM related to me at this point but let me know what you think. ram stick B in slot A.zip ram stick A in slot A.zip

@JorgeB fresh diags. Ran memtest and pc would crash, replaced ram and it works now. Thoughts? unraidbr-diagnostics-20240606-2348.zip

@JorgeBcorrect. Z690 mobo, 14700k, 64gb ram. Jonsbo n 3 case. Standard consumer parts. Only outlier there is an m.2 to sata adapter card, but I have not heard of that causing driver/crashing issues.

Ran it again, at the 5 hour mark. Similar results. Went from 20 MB/sec to 180 MB/sec but has since slowed to 350 KB/sec. Diagnostics attached. unraidbr-diagnostics-20240603-1814.zip

Bump.

Diags here. I was able to cancel the parity sync, it just took many hours for the command to go through. Extended SMART test did not finish but I don't see a record of it failing. Trying it again now that the CPU isn't pegged. unraidbr-diagnostics-20240601-1356.zip

Short test completed without error. Extended test running now.

Hello, not sure what diags or info is required here, will grab whatever is needed. Here's the scenario, I downsized rigs and moved before I could test the drives/config in the new rig. 6 disks, single parity. New box is up and running, config and settings in general seem intact. - Immediately got an error on disk 3 (13TB WD white label shuck). "DEVICE IS DISABLED, CONTENTS EMULATED". Would not even get through an extended SMART test. Swapped bays, the error followed the drive. - I took disk 5 (14TB WD white label shuck), did a new config and put it in disk 3's spot. - Started array, parity rebuild starts, first time got to ~20% after ~18 hours. Slowed to double digit KB/sec. - 5 CPU threads pegged at 100% - Unable to pause/cancel rebuild - Force rebooted machine - Started array, parity rebuild starts again, got to 4.2%, now "running" at 604 KB/sec. 5 CPU threads pegged at 100% (including threads 16 and 18... but there are only threads 0-15 available (14700k). Unable to pause/cancel parity check again.