Date: Fri, 27 Jul 2012 19:47:58 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Caza, Aaron" <Aaron.Caza@ca.weatherford.com>, <freebsd-hackers@freebsd.org> Subject: Re: AHCI Timeouts on SATA III with Intel 520 SSDs Message-ID: <C8AB9E15D7764BD289535626C4DD5D6C@multiplay.co.uk> References: <AEDFABC67B24DD4DABD377A367AB98AD124DB2@032-SN1MPN1-005.032d.mgd.msft.net><C2E19F6EFEB848D982C4C633F16C7116@multiplay.co.uk> <ED7E934D2E032D439E7B8BE4B8D82FAD022A05@032-SN2MPN1-052.032d.mgd.msft.net>
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That's very useful and could well be what we have here.
I've got two new machines which run the SSD's fine @ SATA
3 on port 1 but an identical disk on port 2 is having issues.
If we switch it down to SATA 2 and all is good. So sounds
like the next move is to switch the disks round and see if
the problem stays with the disk or the port.
Here's hoping its the disk or the cable and not the
controller.
Regards
Steve
----- Original Message -----
From: "Caza, Aaron" <Aaron.Caza@ca.weatherford.com>
To: "Steven Hartland" <killing@multiplay.co.uk>; <freebsd-hackers@freebsd.org>
Sent: Friday, July 27, 2012 5:07 PM
Subject: RE: AHCI Timeouts on SATA III with Intel 520 SSDs
Yes. In my case, the problem turned out to be a marginal SATA-III port on the motherboard which was determined after swapping
SSDs, SATA cables, etcetera to finally pin down the problem. When trouble-shooting this issue, I recall googling a particular
missive by Alexander Motion in which he indicates these problems are potentially due to any number of hardware-related reasons
hence the exhaustive search for the culprit which, as he suggested, did indeed turn out to be the hardware. It's actually
rather interesting how borderline hardware can be - the port in question could handle an Intel 510 SSD running at full SATA-III
speed but an Intel 520 pushed it over the brink.
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