From: Matthias Urlichs <matthias@urlichs.de>
To: linux-raid@vger.kernel.org
Subject: Re: question about bitmaps and dirty percentile
Date: Mon, 3 Aug 2009 16:44:57 +0000 (UTC) [thread overview]
Message-ID: <h57469$u6a$2@ger.gmane.org> (raw)
In-Reply-To: cccedfc60907311209o2637c2f2vcda619763f79037a@mail.gmail.com
On Fri, 31 Jul 2009 14:09:06 -0500, Jon Nelson wrote:
>> The bitmap never gets cleared unless all disks in the array are in
>> sync.
>
> Well, that sucks. What is the reasoning behind that?
There's only one bitmap per device. If the bits get cleaned writing to
disk #2, then the system would forget that they still need to be written
to disk #3.
--
Matthias Urlichs
next prev parent reply other threads:[~2009-08-03 16:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-30 18:25 question about bitmaps and dirty percentile Jon Nelson
2009-07-30 19:16 ` Jon Nelson
2009-07-31 18:17 ` Paul Clements
2009-07-31 19:09 ` Jon Nelson
2009-08-03 16:44 ` Matthias Urlichs [this message]
2009-08-03 20:30 ` Paul Clements
2009-08-06 6:21 ` Neil Brown
2009-08-06 13:02 ` Jon Nelson
2009-08-07 1:47 ` NeilBrown
2009-08-07 2:17 ` Jon Nelson
2009-08-07 12:29 ` John Robinson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='h57469$u6a$2@ger.gmane.org' \
--to=matthias@urlichs.de \
--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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.