Date: Sat, 20 Aug 2011 14:17:37 -0400 From: Dan Langille <dan@langille.org> To: Diane Bruce <db@db.net> Cc: freebsd-stable@freebsd.org, Jeremy Chadwick <freebsd@jdc.parodius.com> Subject: Re: bad sector in gmirror HDD Message-ID: <D383C94D-D7AD-4A6C-ACAD-ACB58ACA4E1E@langille.org> In-Reply-To: <20110820180415.GA74553@night.db.net> References: <1B4FC0D8-60E6-49DA-BC52-688052C4DA51@langille.org> <20110819232125.GA4965@icarus.home.lan> <B6B0AD0F-A74C-4F2C-88B0-101443D7831A@langille.org> <20110820032438.GA21925@icarus.home.lan> <4774BC00-F32B-4BF4-A955-3728F885CAA1@langille.org> <20110820180415.GA74553@night.db.net>
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On Aug 20, 2011, at 2:04 PM, Diane Bruce wrote: > On Sat, Aug 20, 2011 at 01:34:41PM -0400, Dan Langille wrote: >> On Aug 19, 2011, at 11:24 PM, Jeremy Chadwick wrote: >>=20 >>> On Fri, Aug 19, 2011 at 09:39:17PM -0400, Dan Langille wrote: > ... >>>> Information such as this? = http://beta.freebsddiary.org/smart-fixing-bad-sector.php > ... >>> 3) A very high temperature of 51C (SMART attribute 194). If this = drive >>> is in an enclosure or in a system with no fans this would be >=20 > ... >=20 > eh? What's the temperature of the second drive? Roughly the same: [root@bast:/home/dan/tmp] # smartctl -a /dev/ad2 | grep -i temp 194 Temperature_Celsius 0x0022 080 076 042 Old_age Always = - 51 [root@bast:/home/dan/tmp] # smartctl -a /dev/ad0 | grep -i temp 194 Temperature_Celsius 0x0022 081 074 042 Old_age Always = - 49 [root@bast:/home/dan/tmp] #=20 FYI, when I first set up smartd, I questioned those values. The HDD in = question, at the time, did not feel hot to the touch. >=20 > ... >=20 >> This is an older system. I suspect insufficient ventilation. I'll = look at getting >> a new case fan, if not some HDD fans. >=20 > ... >=20 >>> I still suggest you replace the drive, although given its age I = doubt >=20 > Older drive and errors starting to happen, replace ASAP. >=20 >>> you'll be able to find a suitable replacement. I tend to keep disks >>> like this around for testing/experimental purposes and not for = actual >>> use. >>=20 >> I have several unused 80GB HDD I can place into this system. I think = that's >> what I'll wind up doing. But I'd like to follow this process through = and get it documented >> for future reference. >=20 > If the data is valuable, the sooner the better.=20 > It's actually somewhat saner if the two drives are not from the same = lot. Noted. --=20 Dan Langille - http://langille.org
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