From: Bill Davidsen <davidsen@tmr.com>
To: Neil Brown <neilb@suse.de>
Cc: Alberto Alonso <alberto@ggsys.net>, linux-raid@vger.kernel.org
Subject: Re: When does a disk get flagged as bad?
Date: Fri, 01 Jun 2007 20:07:56 -0400 [thread overview]
Message-ID: <4660B4DC.1080408@tmr.com> (raw)
In-Reply-To: <18014.26329.836246.525012@notabene.brown>
Neil Brown wrote:
> On Wednesday May 30, alberto@ggsys.net wrote:
>
>> After thinking about your post, I guess I can see some logic behind
>> not failing on the read, although I would say that after x amount of
>> read failures a drive should be kicked out no matter what.
>>
>
> When md gets a read error, it collects the correct data from elsewhere
> and tries to write it to the drive that apparently failed.
> If that succeeds, it tries to read it back again. If that succeeds as
> well, it assumes that the problem has been fixed. Otherwise it fails
> the drive.
>
That's the way it should work, but hopefully the error is logged
somewhere. Other than as a SMART relocate?
--
bill davidsen <davidsen@tmr.com>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
next prev parent reply other threads:[~2007-06-02 0:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-25 4:16 When does a disk get flagged as bad? Alberto Alonso
2007-05-31 2:28 ` Mike Accetta
2007-05-31 2:49 ` Alberto Alonso
2007-05-31 6:10 ` Neil Brown
2007-06-02 0:07 ` Bill Davidsen [this message]
2007-06-02 15:50 ` Alberto Alonso
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