I am trying to diagnose some sata errors. I have a EP2C602-4L/D16 motherboard with 2 SSD's 2 HDD.

 

non of my hard drives are generating any SMART errors, my guess is one of the ports is having issues, I have no idea why something is defaulting to SATA 1 speeds?

 

it doesn't look like I have a port labeled 14, although this board has 14 ports. i have seen suggestions that this is a doggy cable?

 

it is intermittent and happens 1 or 2 times an hour.

 

Nov 22 20:47:03 Megatron kernel: ata14.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
Nov 22 20:47:03 Megatron kernel: ata14.00: irq_stat 0x40000001
Nov 22 20:47:03 Megatron kernel: ata14.00: cmd a0/00:00:00:fc:00/00:00:00:00:00/a0 tag 6 pio 16636 in
Nov 22 20:47:03 Megatron kernel: opcode=0x12 12 01 00 00 fc 00res 00/00:00:00:00:00/00:00:00:00:00/00 Emask 0x3 (HSM violation)
Nov 22 20:47:03 Megatron kernel: ata14: hard resetting link
Nov 22 20:47:04 Megatron kernel: ata14: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
Nov 22 20:47:04 Megatron kernel: ata14.00: configured for UDMA/66
Nov 22 20:47:04 Megatron kernel: ata14: EH complete

 

Edited November 22, 20196 yr by gray squirrel

I would first try reseating the cabling to the drive and at the mobo.  SATA connectors aren't exactly famous for making a good connection

but what drive? I don't have at Sata 1 devices attached. this is my guess as its suggesting a 1.5 Gbps link

From the Main Tab, if you click on the hard drive icon next to the model it will bring up the error log for the drive, and then it'll be pretty obvious which one.

 

One caveat though is that you may disturb other drive(s) cabling in the process of reseating the one thats needed, so you may / should do them all.

non of the drives are showing any errors. and non of the drives relate to ata14..

 

i have taken the array off-line and unplugged and re-pluged all the drives

Edited November 22, 20196 yr by gray squirrel

That is part of the Marvell controller, it's a virtual device, normal and nothing to worry about, just don't use those 4 ports (1st 4 white ports) for devices as they are a known problem on those boards and tend to drop drives.

this makes sense as i was looking at the logs and there was a line saying ata14 was a virtual device

 

I have disabled the Marvell controller, lets see if that helps