Hello,

One of my disks has become unreadable recently. My system has double parity so all data is safe. I ran both a short and an extended SMART self-test and both completed without error. This leads me to conclude the drive is safe (these are all Manufacturer Recertified drives from Serverpartdeals, and this one has been running in my system for about a year) but that there is an issue elsewhere. I suspect it could be an issue with the SATA cable (connected to SAS HBA) but I currently have no spares, stores here are closed at the moment, and I don't want to start unplugging working drives and plugging them in to troubleshoot for a cable, as I'm very wary of breaking something that is currently functional. I can test tomorrow but figured I'd post here in case somebody else notices something.

 

I have attached my diagnostics to this post, but since my system was restarted two days ago, there are not many diagnostics, so I've attached the syslog that I set up on August 27th via the Settings --> Syslog Server option.

 

Thanks in advance for any help!

syslog-100.67.43.19.zipringo-diagnostics-20241021-1858.zip

Edited October 22, 20241 yr by yuna
Added files

You forgot the diags.

Sorry - to my own message preview, I was able to download the files from the links. But upon opening this thread in a private browser, it seems that the files are made available only to me when I'm logged in. Didn't think that'd happen if I did inline embeds. ringo-diagnostics-20241021-1858.zipsyslog-100.67.43.19.zip

 

Try this. Thanks!

 

 

ringo-diagnostics-20241021-1858.zip syslog-100.67.43.19.zip

Edited October 22, 20241 yr by yuna

When you say unreadable I assume you mean disabled since the emulated disk is mounting?

 

Looks more like a power/connection issue, and since there are a lot of UDMA CRC errors, the SATA cable would be the main suspect.

Yes, the device shows as disabled, contents emulated. I say that because the reads/writes activity is 0 and I am getting all kinds of warnings regarding the drive.

After your post I have looked into UDMA CRC errors (never heard of these before, so thank you for pointing that out) and read that power splitters can often cause this issue, and I believe the drive is connected to a power splitter (but is not the only one connected via a splitter). I will tinker around with it and post here with my results for future people looking for help. Thanks!

Power splitters can cause a lot of issues, but UDMA CRC errors are usually the result of a bad SATA cable.

Old thread, but I finally got around to fixing the issue. I had 11 HDDs and 2 SSDs all chained on 2 SATA rails of my power supply. I suspect it was less to do with the splitters themselves and more the fact that I was just putting way too much demand on each PSU line. I solved this by upgrading to an RM1200x due to its 16 total SATA connectors and rebuilt the array and all is good as new.