jomack16

Awesome! Thanks so much for the help! I'll be replacing that controller as soon as possible with something from here: https://wiki.unraid.net/Hardware_Compatibility#PCI_SATA_Controllers Also, just in case someone comes across this in the future, This is the card that is causing the trouble: 8 Port SATA III PCE-e 2.0 x2 Card - SI-PEX40071

The USB disks are not assigned, no.

I did. I am not physically at the server location, so I couldnt unplug the cable. Is that still mucking up the diagnostics?

I was finally able to reboot and get new diagnostic logs. Attached here. Curious if it shows anything other than the USB drives as an issue. jej-unraid-diagnostics-20210120-1512.zip

Thanks for looking! I am soon to change the USB connection configuration, but I did not know that the controller was not recommended. The disks that are connected via USB are not currently in the array, would they still be causing the slowness on parity Sync? Also I am considering replacing that controller with this one instead: https://www.ebay.com/itm/ASR-72405-Adaptec-24-Port-1GB-Cache-6Gb-s-SAS-SATA-PCIe-3-RAID-Controller-Card/183570011464?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Thoughts?

Yes, it is an 8 port controller (https://www.sybausa.com/index.php?route=product/product&product_id=160)

As you can see from the image, The parity sync is going to take quite a while. I suspect that either a drive or a connection to a drive is causing the slowness, but I am unsure how to check that. I have attached the diagnostics for anyone that is kind enough to check them out for me. note* for anyone who cant see the image, or if it doesn't load for some reason, here are the numbers: Total Size: 12 TB Elapsed time: 11 minutes Current position: 44.9MB (0.0%) Estimated speed: 47.6KB/sec Estimated finish: 2903 days, 17 hours, 40 minutes jej-unraid-diagnostics-20210120-1057.zip

@testdasi would you be able to link to something describing these known gates. I am currently dealing with this problem and this is the most up to date thread I found. Thanks!