Hard drive goes 'missing'. Resolved only by reboot.

[quzar]

NAS4Free 9.1.0.1 (revision 775) x64-embedded
Nvidia AWRDACPI AMD Opteron(tm) Processor 246 13312MiB RAM

OHCI (generic) USB controller BCM5750 1000BASE-T media interface
nVidia nForce CK804 UDMA133 controller bus=1 hubaddr=4 port=1
devaddr=2 interface=0 NVIDIA nForce4 USB 2.0 controller

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Subject:
Hard drive goes 'missing'. Resolved only by reboot.

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Description:
On console, there is always a UPS event (even though I do not see the UPS drop
or any issue with site power):

Broadcast Message from root@ freenas.local
(no tty) at 17:59 EDT...

UPS ups@localhost on line power

ata10: timeout waiting to issue command
ata10: error issuing ATA_IDENTIFY command
ata10: SIGNATURE: ffffffff
(aprobe0:ata10:0:0:0): ATA_IDENTIFY. ACB: ec 00 00 00 00 40 00 00 00 00 00 00
(aprobe0:ata10:0:0:0): CAM status: Command timeout
(aprobe0:ata10:0:0:0): Error 5, Retry was blocked

unplugging/replugging drive does not help. Reboot does. Have replaced drive with
spare to no avail, as well as replacing cables. Was happening on a 9.1.0.0 revision as well

[Lee Sharp]

That only leaves the cable or the port. I would start with swapping the cable for a known good one with locking tabs.

[raulfg3]

sometimes is the box case ( in the case that your disk is in a extraible drive bay).

[quzar]

I had already tried swapping the cable for a known working one from another system (and swapped the one from the NAS into the other). There was no change in either system.

I don't use external bays or hot swap trays or backplanes of any sort.

OK, I wanted to just verify it wasn't something like a software issue with my specific raid controller card or something of the sort.

Any clue why this would be coupled with a loss of comms to the UPS though? That to me signified that it may be something other than just a bad port/cable/drive.

[Lee Sharp]

Sounds like ports going bad on the motherboard. I would get a new one quickly.