From: Michael Busby <michael.a.busby@gmail.com>
To: john.robinson@anonymous.org.uk
Cc: linux-raid@vger.kernel.org
Subject: Re: Raid5 to another raid level??
Date: Thu, 1 Sep 2011 16:50:44 -0700 [thread overview]
Message-ID: <-7094796685559591664@unknownmsgid> (raw)
Will test tomorrow once back in the office, hope the 4tb sync will be
finished by then
I will report back my findings
-- Sent from my HP TouchPadOn 1 Sep 2011 11:34 PM,
<john.robinson@anonymous.org.uk> wrote:
On 01/09/2011 22:50, Michael Busby wrote:
> I have found the following and see that you can convert from raid4 to
> raid0 fairly easy
>
>
> http://ubuntuforums.org/showpost.php?p=10412231&postcount=20
>
> i have a 2 disk raid5 and want to be able to convert this to raid0, i
> was thinking of adding a extra 2 disk and setting them up as raid0,
> moving the data over then adding the original raid5 disks to the raid0
> setup, but i see that you are unable to add disk to a raid0 setup,
> would it be possible to setup a raid4 with 2 disks and 1 missing, move
> the data from the raid5 to raid4 then add both of the original disks
> to the raid4 the downgrade this to raid0???
Off the top of my head, feeling slightly sozzled (been for a few beers),
this might work, but as your linked post referring to a list reply from
Neil Brown says, you should test first. You could use some USB sticks,
or alternatively loopback devices are ideal for this kind of test.
Cheers,
John.
next reply other threads:[~2011-09-01 23:50 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-01 23:50 Michael Busby [this message]
2011-09-02 0:54 ` Raid5 to another raid level?? Michael Busby
2011-09-02 2:19 ` NeilBrown
2011-09-02 9:12 ` Michael Busby
2011-09-02 10:22 ` NeilBrown
2011-09-02 10:35 ` Michael Busby
2011-09-02 12:49 ` NeilBrown
2011-09-02 13:11 ` Michael Busby
2011-09-07 1:07 ` NeilBrown
-- strict thread matches above, loose matches on Subject: below --
2011-09-07 16:26 Michael Busby
[not found] ` <CAFsPQ__YdDnJw=qgLAq10vRbNPy4B_EhkV4FU0JAfovxnw9TxQ@mail.gmail.com>
2011-10-10 21:47 ` Michael Busby
2011-10-12 4:10 ` NeilBrown
2011-10-12 9:25 ` Michael Busby
2011-10-12 10:14 ` NeilBrown
2011-10-12 16:01 ` Michael Busby
2011-09-01 21:50 Michael Busby
2011-09-01 22:34 ` John Robinson
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=-7094796685559591664@unknownmsgid \
--to=michael.a.busby@gmail.com \
--cc=john.robinson@anonymous.org.uk \
--cc=linux-raid@vger.kernel.org \
/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).