From: NeilBrown <neilb@suse.de>
To: Benjamin ESTRABAUD <be@mpstor.com>
Cc: Linux-RAID <linux-raid@vger.kernel.org>
Subject: Re: mdadm --fail requires writeable drive.
Date: Fri, 15 Nov 2013 15:46:27 +1100 [thread overview]
Message-ID: <20131115154627.14364eb3@notabene.brown> (raw)
In-Reply-To: <5285094D.9070904@mpstor.com>
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On Thu, 14 Nov 2013 17:33:01 +0000 Benjamin ESTRABAUD <be@mpstor.com> wrote:
> Hi Neil,
>
> This does work but I was looking for a way to explicitely set a
> particular device as Failed (I want to process devices one by one).
>
> But right now I was reading from the array to force it detecting the
> failure as opposed to using "detached" which orders of magnitude better.
>
> Thanks for the tip, I'll use that for now.
If you really want to just fail one of them you can used the "kernel name"
like "sda1".
If you
ls -d /sys/block/mdXX/md/dev-*
you will see the devices that are though to be part of the array. The part
of the name after "dev-" is the "kernel name".
"mdadm /dev/mdXX --fail" will accept a "kernel name" and will mark just that
device as faulty.
NeilBrown
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next prev parent reply other threads:[~2013-11-15 4:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-13 12:17 mdadm --fail requires writeable drive Benjamin ESTRABAUD
2013-11-14 0:44 ` NeilBrown
2013-11-14 17:33 ` Benjamin ESTRABAUD
2013-11-15 4:46 ` NeilBrown [this message]
2013-11-15 12:22 ` Benjamin ESTRABAUD
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