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 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).