From: Spelic <spelic@shiftmail.org>
To: "Patrick H." <linux-raid@feystorm.net>
Cc: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: filesystem corruption
Date: Wed, 05 Jan 2011 16:52:04 +0100 [thread overview]
Message-ID: <4D2493A4.9010209@shiftmail.org> (raw)
In-Reply-To: <4D247FFB.3090209@feystorm.net>
On 01/05/2011 03:28 PM, Patrick H. wrote:
> No, my drives are battery backed as well.
what drives are they, if I can ask? OCZ SSDs with supercapacitor maybe?
Do you know if they will really flush the whole write cache on sudden
power off? I read smoky sentences about this for the OCZ drives. In
certain points it seemed like the supercapacitor was only able to
provide the same guarantees of a HDD, that is, no further data loss due
to erase-then-rewrite-32K and flash wear levelling stuff, but was not
able to flush the write cache.
Did you try with e.g. a stream of simple databases transactions then
disconnecting the cable suddenly like this test
http://www.mysqlperformanceblog.com/2009/03/02/ssd-xfs-lvm-fsync-write-cache-barrier-and-lost-transactions/
?
Thank you
next prev parent reply other threads:[~2011-01-05 15:52 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-03 1:58 filesystem corruption Patrick H.
2011-01-03 3:16 ` Neil Brown
[not found] ` <4D214B5C.3010103@feystorm.net>
2011-01-03 4:56 ` Neil Brown
2011-01-03 5:05 ` Patrick H.
2011-01-04 5:33 ` NeilBrown
2011-01-04 7:50 ` Patrick H.
2011-01-04 17:31 ` Patrick H.
2011-01-05 1:22 ` Patrick H.
2011-01-05 7:02 ` CoolCold
[not found] ` <AANLkTinL_nz58f8rSPuhYvVwGY5jdu1XVkNLC1ky5A65@mail.gmail.com>
2011-01-05 14:28 ` Patrick H.
2011-01-05 15:52 ` Spelic [this message]
2011-01-05 15:55 ` Patrick H.
-- strict thread matches above, loose matches on Subject: below --
2018-12-03 9:31 Filesystem Corruption Stefan Malte Schumacher
2018-12-03 11:34 ` Qu Wenruo
2018-12-03 16:29 ` remi
2014-10-31 0:29 filesystem corruption Tobias Holst
2014-10-31 1:02 ` Tobias Holst
2014-10-31 2:41 ` Rich Freeman
2014-10-31 17:34 ` Tobias Holst
2014-11-02 4:49 ` Robert White
2014-11-02 21:57 ` Chris Murphy
2014-11-03 3:43 ` Zygo Blaxell
2014-11-03 17:11 ` Chris Murphy
2014-11-04 4:31 ` Zygo Blaxell
2014-11-04 8:25 ` Duncan
2014-11-04 18:28 ` Chris Murphy
2014-11-04 21:44 ` Duncan
2014-11-04 22:19 ` Robert White
2014-11-04 22:34 ` Zygo Blaxell
2014-11-03 2:55 ` Tobias Holst
2014-11-03 3:49 ` Robert White
2007-06-06 3:10 Filesystem corruption Xu CanHao
2007-06-06 12:16 ` Ingo Bormuth
2007-05-30 20:13 devsk
2007-05-30 17:22 devsk
2007-05-30 19:24 ` Toby Thain
2007-05-30 20:03 ` David Masover
2007-05-31 0:11 ` Ingo Bormuth
2007-06-02 23:10 ` Edward Shishkin
2007-06-04 2:55 ` Ingo Bormuth
2007-06-04 9:41 ` Edward Shishkin
2007-06-05 23:20 ` Ingo Bormuth
2007-05-27 13:18 Laurent CARON
2007-05-28 12:23 ` Vladimir V. Saveliev
2007-05-28 14:10 ` Laurent CARON
2007-05-28 17:13 ` Vladimir V. Saveliev
2007-05-28 17:27 ` Laurent CARON
[not found] ` <Pine.LNX.4.64.0705280025570.10429@sheep.housecafe.de>
2007-05-28 17:31 ` Christian Kujau
2007-05-28 18:16 ` Laurent CARON
2007-05-28 23:19 ` Christian Kujau
2007-05-29 8:39 ` Vladimir V. Saveliev
[not found] ` <465BA9AC.8040805@ultraviolet.org>
2007-05-29 8:15 ` Vladimir V. Saveliev
2007-05-29 12:36 ` Toby Thain
2007-05-30 13:25 ` David Masover
2007-05-30 16:02 ` Vladimir V. Saveliev
2007-05-30 20:06 ` David Masover
2007-05-30 16:42 ` Toby Thain
2007-05-30 19:42 ` David Masover
2007-05-30 16:08 ` Vladimir V. Saveliev
2003-08-13 16:05 Locke
2003-08-14 7:49 ` Oleg Drokin
2002-09-05 15:57 Filesystem Corruption Brian Tinsley
2002-06-06 18:00 Kurt
2002-06-06 18:00 Kurt
2002-06-06 18:00 Kurt
2002-06-06 18:00 Kurt
2002-06-06 18:00 Kurt
2002-06-06 18:00 Kurt
2002-06-06 18:00 Kurt
2002-06-06 18:00 Kurt
2002-06-06 18:00 Kurt
2002-06-07 7:15 ` Oleg Drokin
2002-06-11 16:49 ` Kurt
2002-06-06 18:00 Kurt
2002-06-06 18:00 Kurt
2001-02-05 16:00 Filesystem corruption Ian Chilton
2001-02-05 13:16 Ian Chilton
2001-01-31 14:20 Carsten Langgaard
2001-01-31 15:52 ` Florian Lohoff
2001-01-31 16:24 ` Carsten Langgaard
2001-01-31 16:48 ` Florian Lohoff
2001-02-05 10:02 ` Ralf Baechle
2001-02-05 12:10 ` Alan Cox
2001-02-05 12:10 ` Alan Cox
2001-02-05 12:56 ` Geert Uytterhoeven
2001-02-05 13:01 ` Alan Cox
2001-02-05 13:01 ` Alan Cox
2001-02-05 22:01 ` Ralf Baechle
2001-02-05 22:01 ` Ralf Baechle
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