From: Neil Brown <neilb@suse.de>
To: Thomas Backlund <tmb@mandriva.org>
Cc: Doug Ledford <dledford@redhat.com>,
"linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>
Subject: Re: Problem with mdadm 2.6.7
Date: Tue, 29 Jul 2008 10:59:33 +1000 [thread overview]
Message-ID: <18574.27509.370113.998930@notabene.brown> (raw)
In-Reply-To: message from Thomas Backlund on Sunday July 27
On Sunday July 27, tmb@mandriva.org wrote:
>
> as for --bitmap, can it be added to an existing array ?
Yes.
>
> What is the better choice, bitmap=internal or bitmap=<some_file> ?
Internal is easier.
The command is
mdadm --grow /dev/mdXXX --bitmap=internal
This could have a negative impact on performance. The degree depends
a lot on your workload.
If you notice a reduction in write speed that is not acceptable, and
if removing the bitmap (mdadm --grow /dev/mdXXX --bitmap=none) fixes
the problem, then we can try to find an alternate solution.
>
> I'd hate to have to recreate the array, as I have about 1.2GB of data on
> it...
There is no need for that.
NeilBrown
prev parent reply other threads:[~2008-07-29 0:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <488C531B.5060005@mandriva.org>
2008-07-27 14:26 ` Problem with mdadm 2.6.7 Thomas Backlund
2008-07-27 15:06 ` Doug Ledford
2008-07-27 15:24 ` Thomas Backlund
2008-07-27 19:31 ` Doug Ledford
2008-07-29 0:59 ` Neil Brown [this message]
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=18574.27509.370113.998930@notabene.brown \
--to=neilb@suse.de \
--cc=dledford@redhat.com \
--cc=linux-raid@vger.kernel.org \
--cc=tmb@mandriva.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