One of my disks has been disabled after errors were found at the start of my monthly parity check. This is the first time i've had any disk errors in many years of running unraid so i'm looking for some guidance.

 

SMART test on the disk is passing but i'm seeing multiple disk3 read / write errors in the syslog right when the parity check was started (May 1, 02:00:10). 

 

The SMART test (and unraid GUI) are reporting udma crc error count is 1 which i've read can be due to bad cables.

 

I did purchase this LSI 9207-8i HBA card flashed to IT mode back in November and it has been working flawlessly since then (I have been using the included SFF 8087 cables).

 

The drive in question is older (approaching 40k power on hours) but has never had any issues.

 

Any advice would be greatly appreciated.

 

Thanks

 

 

Edit: Looking through the syslog, i am noticing a lot of:

 

sd 7:0:5:0: Power-on or device reset occurred

 

This is only on the disk in question (disk3, /dev/sdh). Power and SATA cables are seated properly.

 

tower-diagnostics-20230503-1521.zip

Edited May 7, 20232 yr by adrayic

Looks more like a power/connection problem, replace/swap cables (both power and SATA) and try again.

Ya I am suspecting that as well. I am currently trying a new cable to see if that fixes the problem.

 

Do I still need to rebuild the drive?  The contents are unchanged since it was disabled.

You could do a new config, but would need to correct parity, that will take as long as the rebuild, so as long as the emulated disk is mounting and contents look correct we usually recommend rebuilding.

9 hours ago, adrayic said:

Ya I am suspecting that as well. I am currently trying a new cable to see if that fixes the problem.

 

Do I still need to rebuild the drive?  The contents are unchanged since it was disabled.

Did this fix your issue?

Swapped the SATA cable and ran extended SMART. Everything looked good so I rebuilt the drive without any issues.  No "device reset" syslog errors since the cable change.

 

I will mark this as solved. Thanks for the help.