From: Al Boldi <a1426z@gawab.com>
To: linux-raid@vger.kernel.org
Subject: Re: Propose of enhancement of raid1 driver
Date: Mon, 30 Oct 2006 18:44:56 +0300 [thread overview]
Message-ID: <200610301844.56901.a1426z@gawab.com> (raw)
In-Reply-To: <ei0elo$23m$1@sea.gmane.org>
Mario 'BitKoenig' Holbe wrote:
> Al Boldi <a1426z@gawab.com> wrote:
> > But what still isn't clear, why can't raid1 use something like the
> > raid10 offset=2 mode?
>
> RAID1 has equal data on all mirrors, so sooner or later you have to seek
> somewhere - no matter how you layout the data on each mirror.
Don't underestimate the effects mere layout can have on multi-disk array
performance, despite it being highly hw dependent.
The best approach would probably involve a user-configurable layout table, to
tune it to the specific hw.
Thanks!
--
Al
next prev parent reply other threads:[~2006-10-30 15:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-17 6:51 Propose of enhancement of raid1 driver Miroslaw Mieszczak
2006-10-19 3:28 ` Neil Brown
2006-10-19 16:06 ` Doug Ledford
2006-10-20 4:59 ` Jeff Breidenbach
2006-10-21 16:01 ` Tomasz Chmielewski
2006-10-23 1:33 ` Neil Brown
2006-10-23 15:28 ` Mario 'BitKoenig' Holbe
2006-10-28 17:31 ` Al Boldi
2006-10-28 20:30 ` Mario 'BitKoenig' Holbe
2006-10-30 15:44 ` Al Boldi [this message]
2006-10-30 17:02 ` Mario 'BitKoenig' Holbe
2006-10-30 17:55 ` Al Boldi
2006-10-30 17:59 ` Jeff Breidenbach
2006-10-30 20:50 ` Mario 'BitKoenig' Holbe
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=200610301844.56901.a1426z@gawab.com \
--to=a1426z@gawab.com \
--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).