From: Jean-Baptiste Thomas <cau2jeaf1honoq@laposte.net>
To: linux-raid@vger.kernel.org
Subject: Paranoid mode for RAID-1 ?
Date: Mon, 27 Apr 2015 08:37:59 +0200 (CEST) [thread overview]
Message-ID: <972437107.22507366.1430116679975.JavaMail.zimbra@laposte.net> (raw)
In-Reply-To: <1610581828.22506051.1430116628556.JavaMail.zimbra@laposte.net>
I'm looking for a way to get MD to operate in a mode in which
reading a sector from a RAID-1 device would not succeed until it
got matching data from at least two components.
Recent experience[1] suggests that a transient problem in one
disk can completely hose a four way RAID-1 array, which is
otherwise supposed to still be fine after a triple total
failure. I'm hoping that a paranoid mode would have prevented
that.
If there is such a thing, PLEASE tell me. If not, please tell me
so I don't waste any more time looking for it.
[1] "Massive RAID-1 desync"
http://www.spinics.net/lists/raid/msg48681.html
http://marc.info/?l=linux-raid&m=143003812706563&w=2
next parent reply other threads:[~2015-04-27 6:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1610581828.22506051.1430116628556.JavaMail.zimbra@laposte.net>
2015-04-27 6:37 ` Jean-Baptiste Thomas [this message]
2015-04-27 6:48 ` Paranoid mode for RAID-1 ? Adam Goryachev
2015-04-27 7:15 ` David Brown
2015-04-27 7:35 ` Mikael Abrahamsson
2015-04-27 8:18 ` Adam Goryachev
2015-04-27 8:34 ` Paranoid mode for RAID-1 ? MD-RAID checksums Pasi Kärkkäinen
2015-04-27 9:15 ` Paranoid mode for RAID-1 ? Roman Mamedov
2015-04-27 6:49 ` NeilBrown
2015-04-27 10:52 ` Jean-Baptiste Thomas
2015-04-27 16:15 ` Wols Lists
2015-04-27 8:45 ` Pieter De Wit
2015-04-27 10:18 ` <DKIM> " Jean-Baptiste Thomas
2015-04-27 10:54 ` David Brown
2015-04-27 12:36 ` Jean-Baptiste Thomas
2015-04-27 13:46 ` David Brown
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