From: Ram Ramesh <rramesh2400@gmail.com>
To: Mikael Abrahamsson <swmike@swm.pp.se>
Cc: NeilBrown <neilb@suse.de>, Linux Raid <linux-raid@vger.kernel.org>
Subject: Re: Unable to re-add a disk after a reboot.
Date: Thu, 14 Aug 2014 23:45:02 -0500 [thread overview]
Message-ID: <53ED904E.3040200@gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1408150625400.7929@uplift.swm.pp.se>
On 08/14/2014 11:27 PM, Mikael Abrahamsson wrote:
> On Thu, 14 Aug 2014, Ram Ramesh wrote:
>
>> I thought write-intent bitmap was not a good idea. May be I did not
>> research enough. This brings me to the next (probably more important)
>> question. How do I replace a old drive that has not died without
>> having to rebuild? If I did a dd image xfer will it accept the
>> replacement?
>
> If you have a fairly recent kernel and mdadm, there is mdadm --replace.
>
> https://unix.stackexchange.com/questions/74924/how-to-safely-replace-a-not-yet-failed-disk-in-a-linux-raid5-array
>
>
Thanks. If I may, I like to ask one related question. I have a disk that
is already kicked out. Will adding a bitmap to degraded array help in
-re_add the device? I doubt it, but I rather ask before trying as I am
paranoid after the disk failure.
Ramesh
next prev parent reply other threads:[~2014-08-15 4:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-14 23:08 Unable to re-add a disk after a reboot Ram Ramesh
2014-08-15 0:19 ` NeilBrown
2014-08-15 1:33 ` Ram Ramesh
2014-08-15 4:27 ` Mikael Abrahamsson
2014-08-15 4:45 ` Ram Ramesh [this message]
2014-08-15 6:21 ` Mikael Abrahamsson
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