I've been getting this error when I look at my Syslog. I don't know how to fix it but I'm guessing it has to do with one of my drives. I've also been having issues with my cache drive not moving files to the array. Maybe this error is the culprit.

 

This is the error:

 

Feb 19 15:06:51 Tower kernel: ata4: exception Emask 0x10 SAct 0x0 SErr 0x4000000 action 0xe frozen (Errors)

Feb 19 15:06:51 Tower kernel: ata4: irq_stat 0x00000040, connection status changed (Drive related)

Feb 19 15:06:51 Tower kernel: ata4: SError: { DevExch } (Errors)

Feb 19 15:06:51 Tower kernel: ata4: limiting SATA link speed to 1.5 Gbps (Drive related)

Feb 19 15:06:51 Tower kernel: ata4: hard resetting link (Minor Issues)

Feb 19 15:06:52 Tower kernel: ata4: SATA link down (SStatus 0 SControl 310) (Drive related)

Feb 19 15:06:52 Tower kernel: ata4: EH complete (Drive related)

 

 

My system:

 

2TB Parity Drive      - sda - connected to motherboard SATA 3 Gb/s port.

320GB Cache Drive - sdb - connected to motherboard SATA 3 Gb/s port. I'm thinking is the culprit as it's only a 1.5GB/s drive but who knows.

2 x 1.5TB drives      - sdc/sdd - connected to motherboard SATA 3 Gb/s port.

Unraid 5.0b14

 

I also have a SuperMicro AOC-SAT2-MV8 installed in the box but no drives connected to it.

 

Any help is greatly appreciated. 

 

You need to provide a full system log, more details on hardware, and wouldn't hurt to have a SMART report of each drive.

Do those messages repeat?

@ Dgaschk,

 

Yes they do.

 

@ Marcusone,

 

Should I be running the Long Smart Test or would the Short one suffice?

 

Again, thanks for your help.

I've included my System Log in the attachment. Hopefully this sheds some light into what's going on. Noticing something, my data drives and parity all spin down after an hour and but the cache drive doesn't. Could that be the reason why it's giving me this error?

syslog-2012-02-19.txt