Date: Sun, 04 Oct 2009 11:29:55 +0000 From: "V.I.Victor" <idmc_vivr@intgdev.com> To: "Oliver Fromme" <olli@lurza.secnetix.de>, freebsd-questions@FreeBSD.ORG, idmc_vivr@intgdev.com Subject: Re: Every 12-hrs -- "ad0: TIMEOUT - WRITE DMA" Message-ID: <W549226643258671254655795@webmail4>
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[...] >First of all: The disk is *not* dying. "SMART" won't reveal anything. >The behaviour is perfectly normal for IBM-DJNA-3* type disks. > >When those disks are used in continuous operation (24/7), they >will go into automatic maintenance mode after 6 days. This is >kind of a short self-test and recalibration to ensure reliable >continous operation. It will be repeated after another 6 days >ad infinitum. > It's been over 3.5 years since my original post -- imagine my surprise! The drive's still running (24/7) and still reporting the same retries. Be= cause of the pattern of the retries, I never really thought that the driv= e was bad. But, until now, I never knew why it was happening. Thanks *very* much for the info!
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