From: Brendan Conoboy <synk@swcp.com>
To: mingz@ele.uri.edu
Cc: Shai <shaibn@gmail.com>, Dexter Filmore <Dexter.Filmore@gmx.de>,
linux-raid@vger.kernel.org
Subject: Re: replace disk in raid5 without linux noticing?
Date: Wed, 19 Apr 2006 10:41:40 -0700 [thread overview]
Message-ID: <44467654.2060903@swcp.com> (raw)
In-Reply-To: <1145466223.8608.84.camel@localhost.localdomain>
Ming Zhang wrote:
>> Why can't you just mark that drive as failed, remove it and hotadd a
>> new drive to replace the failed drive?
>
> because background rebuild is slower than disk to disk copy, since his
> disk is still fully functional.
Wouldn't it be great if every disk in a RAID volume were in its own way
a degraded RAID1 device without a mirror? Then when any drive started
generating recoverable errors and warnings a mirror could be allocated
without any downtime. You can certainly generate a layout like this
manually, but it would be nice to have that sort of feature out of the
box (and without the performance hit!). This would help a great deal in
a situation such as Dexter's.
-Brendan (synk@swcp.com)
next prev parent reply other threads:[~2006-04-19 17:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-19 14:31 replace disk in raid5 without linux noticing? Dexter Filmore
2006-04-19 16:31 ` Shai
2006-04-19 17:03 ` Ming Zhang
2006-04-19 17:41 ` Brendan Conoboy [this message]
2006-04-19 18:16 ` Ming Zhang
2006-04-20 15:22 ` Gabor Gombas
2006-04-20 15:24 ` Ming Zhang
2006-04-21 18:23 ` Dexter Filmore
2006-04-21 22:25 ` Carlos Carvalho
2006-04-22 15:08 ` Martin Cracauer
2006-04-22 17:48 ` Carlos Carvalho
2006-04-23 16:43 ` Martin Cracauer
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