From: Bob Sanders <rsanders@sgi.com>
To: gentoo-amd64@lists.gentoo.org
Subject: Re: [gentoo-amd64] Re: Is my RAID performance bad possibly due to starting sector value?
Date: Fri, 21 Jun 2013 11:53:33 -0700 [thread overview]
Message-ID: <20130621185333.GD11236@sgi.com> (raw)
In-Reply-To: <CAK2H+ef++nK23xFFH80efsYw6c2B7MTg391ooMu72SMzNHo67g@mail.gmail.com>
Mark Knecht, mused, then expounded:
>
>
> I agree that RAID5 gives you an opportunity to get things fixed, but
> there are folks who lose a disk in a RAID5, start the rebuild, and
> then lose a second disk during the rebuild. That was my main reason to
> go to RAID6. Not that I would ever run the array degraded but that I
> could still tolerate a second loss while the rebuild was happening and
> hopefully get by. That was similar to my old 3-disk RAID1 where I'd
> have to lose all 3 disks to be out of business.
>
If the drives in the RAID came from the same build lot, the chances of
multi-drive failure are fairly high, if one fails.
I've had 3 out of four drives, from the same lot build, fail at the same
time. I've had others never fail. And a few that fail over time where
others from the same lot failed within a month of the first failure.
Bob
--
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next prev parent reply other threads:[~2013-06-21 18:53 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-20 19:10 [gentoo-amd64] Is my RAID performance bad possibly due to starting sector value? Mark Knecht
2013-06-20 19:16 ` Volker Armin Hemmann
2013-06-20 19:28 ` Mark Knecht
2013-06-20 20:45 ` Mark Knecht
2013-06-24 18:47 ` Volker Armin Hemmann
2013-06-24 19:11 ` Mark Knecht
2013-06-20 19:27 ` Rich Freeman
2013-06-20 19:31 ` Mark Knecht
2013-06-21 7:31 ` [gentoo-amd64] " Duncan
2013-06-21 10:28 ` Rich Freeman
2013-06-21 14:23 ` Bob Sanders
2013-06-21 14:27 ` Duncan
2013-06-21 15:13 ` Rich Freeman
2013-06-22 10:29 ` Duncan
2013-06-22 11:12 ` Rich Freeman
2013-06-22 15:45 ` Duncan
2013-06-22 23:04 ` Mark Knecht
2013-06-22 23:17 ` Matthew Marlowe
2013-06-23 11:43 ` Rich Freeman
2013-06-23 15:23 ` Mark Knecht
2013-06-28 0:51 ` Duncan
2013-06-28 3:18 ` Matthew Marlowe
2013-06-21 17:40 ` Mark Knecht
2013-06-21 17:56 ` Bob Sanders
2013-06-21 18:12 ` Mark Knecht
2013-06-21 17:57 ` Rich Freeman
2013-06-21 18:10 ` Gary E. Miller
2013-06-21 18:38 ` Mark Knecht
2013-06-21 18:50 ` Gary E. Miller
2013-06-21 18:57 ` Rich Freeman
2013-06-22 14:34 ` Duncan
2013-06-22 22:15 ` Gary E. Miller
2013-06-28 0:20 ` Duncan
2013-06-28 0:41 ` Gary E. Miller
2013-06-21 18:53 ` Bob Sanders [this message]
2013-06-22 14:23 ` Duncan
2013-06-23 1:02 ` Mark Knecht
2013-06-23 1:48 ` Mark Knecht
2013-06-28 3:36 ` Duncan
2013-06-28 9:12 ` Duncan
2013-06-28 17:50 ` Gary E. Miller
2013-06-29 5:40 ` Duncan
2013-06-30 1:04 ` Rich Freeman
2013-06-22 12:49 ` [gentoo-amd64] " B Vance
2013-06-22 13:12 ` Rich Freeman
2013-06-23 11:31 ` thegeezer
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