Date: Mon, 20 Feb 2006 20:28:18 +0000 From: "V.I.Victor" <idmc_vivr@intgdev.com> To: freebsd-questions@freebsd.org Subject: Re: Every 12-hrs -- "ad0: TIMEOUT - WRITE DMA" Message-ID: <W6713813530185481140467298@webmail8>
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On Sun, 19 Feb 2006, Mike Tancsa wrote: > On Sun, 19 Feb 2006 22:21:04 +0000, in sentex.lists.freebsd.questions > you wrote: > >> On Thu, 16 Feb 2006, Mike Tancsa wrote: >> >>>> For the last 4-days, our (otherwise OK) 5.4-RELEASE machine has been >>>> reporting: >>>> >>>> Feb 12 12:08:05 : ad0: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=2701279 >>>> Feb 13 00:08:51 : ad0: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=2701279 >>>> Feb 13 12:09:38 : ad0: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=2963331 >>>> Feb 14 00:10:24 : ad0: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=2705947 >>>> >>>> So -- can anyone help track this down? >>> >>> >>> It sounds like a hardware issue. Install >>> /usr/ports/sysutils/smartmontools and "ask" the drive to see whats up. >> >> I installed 'smartmontools' but haven't used as yet. I've been waiting to >> see what happens -- the "problem" simply stopped. There've been no "ad0: >> TIMEOUT" messages for 3-days. > > The errors get logged in the drive so you dont have to wait for more > errors to happen. Start it running now so you can see if any of the > "bad" counters are changing as well as to ask the drive what it was. > My guess is you have some bad sectors the drive remapped. OK. No problems found... And -- still -- no more "ad0: TIMEOUTs" But, I'm not really surprised. As mentioned in the original post, a 2-gig file had been created that presumably "moved-past" any bad sector patches; approx. midway during the TIMEOUT report period. Plus -- since the drive is (was) storing email, writing logs, etc. 24-hrs a day, it seems improbable that bad-sectors would only show-up every 12-hrs. Although I'm uncomfortable with "magic-fixes," I wonder if there's more than a coincidental connection between setting the date and the reports starting and stopping.
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