From: Robert Heinzmann <Robert.Heinzmann@gmx.net>
To: Mike Hardy <mhardy@h3c.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Migrating from SINGLE DISK to RAID1
Date: Tue, 01 Feb 2005 22:40:56 +0100 [thread overview]
Message-ID: <41FFF768.9000706@gmx.net> (raw)
In-Reply-To: <41FFD9C7.2090208@h3c.com>
Hello Mike,
Mike Hardy wrote:
>
> Robert Heinzmann wrote:
>
>> Hello,
>>
>> can someone verify if the following statements are true ?
>>
>> - It's not possible to simply convert a existing partition with a
>> filesystem on it to a raid1 mirror set.
>
>
> I believe you're right, but I'm not totally sure on this one. I'd take
> the second disk, create a new RAID1 with the first drive "missing" on
> the mdadm --create commandline, copy everything over to it, put grub on
> it, then test that it boots correctly by pulling the first drive out.
>
> Only once the RAID1 is working (in degraded mode) add the original first
> drive back in, but booting off the RAID1, then add it to the RAID set to
> complete the pair. With that process, the question is somewhat moot,
> although I'm interested in the real answer too
Thats how I'm going to do it althought the version Paul Celemens is
mentioning sound very elegant (resizing the fs 128 KB prior to creating
the array).
Bye,
Robert
next prev parent reply other threads:[~2005-02-01 21:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-01 19:01 Migrating from SINGLE DISK to RAID1 Robert Heinzmann
2005-02-01 19:34 ` Mike Hardy
2005-02-01 21:40 ` Robert Heinzmann [this message]
2005-02-01 23:52 ` Alvin Oga
2005-02-01 19:41 ` Paul Clements
2005-02-01 22:57 ` berk walker
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=41FFF768.9000706@gmx.net \
--to=robert.heinzmann@gmx.net \
--cc=linux-raid@vger.kernel.org \
--cc=mhardy@h3c.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).