One of my drives red balled, so picked up a replacement drive, installed it, and started the data rebuild process. When I checked on it later I found that all of the drives connected to my AOC-SASLP-MV8 controller were getting massive amounts of read errors, while the drives connected to the onboard controller were performing normally. When the rebuild completed I checked the replacement drive and of course I found that the rebuild didn't work. Then when I took the array off line all of the drives connected to the AOC-SASLP-MV8 disappeared from the menu and the system said they were missing. I rebooted the server and all of the drives show up like they should again. Is my controller card going bad? Every time I start the array and then stop it all of the drives connected to that card no longer appear to be connected, but when I reboot they show up again.

Possibly a bad mini-SAS cable? I know I've had a couple of bad cables from monoprice that causes some redballs for me. I thought my backplane was going bad. Once I replaced the cables, all was fine.

Check for BIOS and/or firmware updates.

Replaced the cables and did a bios update on the motherboard. The controller card has the same firmware it shipped with. Checked Supermicro's website and it looks like it's the most recent version. Took the whole thing apart and reseated all the cables and I've started the rebuild process again, but I'm already getting tons of read errors from one of the drives. Once it completes I'll post the log file and see if someone smarter than I can decipher it. I suppose I should list the hardware I'm using as well

 

Mobo: ASRock A75M-HVS

Processor: AMD A4-3300

Memory: 2x4GB Kingston DDR3 1333

HD Controller: Supermicro AOC-SASLP-MV8

PSU: Cooler Master Extreme 500W -  RS500#

5-in-3 Adapters: iStarUSA BPN-DE350SS (3 installed)

 

Hard drives are an assortment. Started out with whatever I had lying around and over time I've been upgrading them with newer larger drives. I built the system back in 2012 and it's been relatively trouble free up until now.

 

Well this is interesting. The drive finished rebuilding and now a different drive is showing up as unformated. Also all of my user shares are showing up, but they're all empty. The log file is full of errors, and I have no idea where to go from here. Any suggestions?

 

syslog-2014-11-24.txt

I had trouble with my AOC-SASLP-MV8 cards in the past. I had two of the cards on two different servers and they both gave me drive errors on each server. I tested the drives from each server that showed errors and they tested fine on a different computer. I eventually replaced both with M1015s and haven't had any problems since.

PSU will only support 6-7 drives. See here :http://lime-technology.com/forum/index.php?topic=12219.0

I just picked up a 750w single rail psu on the Newegg black friday sale. Hopefully that'll resolve the issue. If not, then I guess I'll try a new raid controller.