Date: Wed, 19 Jan 2005 15:39:45 -0600 From: Karl Denninger <karl@denninger.net> To: jon@abccomm.com, freebsd-stable@freebsd.org Subject: Re: Bad disk or kernel (ATA Driver) problem? Message-ID: <20050119153945.A22642@Denninger.Net> In-Reply-To: <8eea040805011913334b140af6@mail.gmail.com>; from Jon Simola on Wed, Jan 19, 2005 at 01:33:12PM -0800 References: <20050119151301.A22310@Denninger.Net> <8eea040805011913334b140af6@mail.gmail.com>
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On Wed, Jan 19, 2005 at 01:33:12PM -0800, Jon Simola wrote: > On Wed, 19 Jan 2005 15:13:01 -0600, Karl Denninger <karl@denninger.net> wrote: > > > I've got a 2 x SATA system here I'm playing with in preparation to move > > over production to 5.x. > > > > These drives have been working under 4.x for quite some time - they're 250GB > > Maxtor disks.... > > > > ad4: 239372MB <Maxtor 6B250S0/BANC1980> [486344/16/63] at ata2-master SATA150 > > ad6: 239372MB <Maxtor 6B250S0/BANC1980> [486344/16/63] at ata3-master SATA150 > > > > The first disk runs nice and happy. > > > > The second does too, provided that the load isn't too high. If it is, then I > > start to get DMA transfer errors, such as the following: > > > > ad6: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> > > LBA=543191 > > GEOM_MIRROR: Request failed (error=5). ad6[READ(offset=278048256, > > length=102400)] > > GEOM_MIRROR: Device m0: provider ad6 disconnected. > > ad6: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> > > LBA=300463 > > ad6: TIMEOUT - READ_DMA retrying (2 retries left) LBA=90863 > > ad6: FAILURE - READ_DMA timed out > > ad6: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> > > ad6: TIMEOUT - READ_DMA retrying (2 retries left) LBA=120663 > > ad6: FAILURE - READ_DMA timed out > > > > I'm having a lot of trouble believing this is an actual disk problem. Among > > other things, its happening at different places - not always at the same > > block. > > I've got a few 1U Supermicro boxes running dual SATA drives: > ad4: 78167MB <Maxtor 6Y080M0/YAR51HW0> [158816/16/63] at ata2-master SATA150 > ad6: 78167MB <Maxtor 6Y080M0/YAR51HW0> [158816/16/63] at ata3-master SATA150 > > I've run into all sorts of problems with every one, and changing the > IDE channel settings in the BIOS always fixes it. Which really annoys > me, because I setup a new box, run it for a couple weeks, then the > drives start getting flaky under load. Then I go change the setting in > the BIOS (that I always forget to do on initial setup) and it's dead > stable for months at a time. > > I've had the exact same problem with FreeBSD 5.3 and OpenBSD 3.5 as well. There are no channel settings available on this system in the BIOS... (Dell 400SC) I am running the most current BIOS as well, if it matters..... -- Karl Denninger (karl@denninger.net) Internet Consultant & Kids Rights Activist http://www.denninger.net My home on the net - links to everything I do! http://scubaforum.org Your UNCENSORED place to talk about DIVING! http://www.spamcuda.net SPAM FREE mailboxes - FREE FOR A LIMITED TIME! http://genesis3.blogspot.com Musings Of A Sentient Mind
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