From: NeilBrown <neilb@suse.de>
To: majianpeng <majianpeng@gmail.com>
Cc: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: about:conf->recovery_disabled and mddev->recovery_disabled
Date: Mon, 9 Apr 2012 10:03:29 +1000 [thread overview]
Message-ID: <20120409100329.5eff419d@notabene.brown> (raw)
In-Reply-To: <201204071713172658588@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 694 bytes --]
On Sat, 7 Apr 2012 17:13:22 +0800 "majianpeng" <majianpeng@gmail.com> wrote:
> Hi all:
> I confused the recovery_disabled.
> what's the mean when conf->recovery_disabled = mddev->recovery_disabled?
> If equal,so not to add disk and not to recovery?
Yes, exactly.
in an attempt to recover a device fails we don't want to immediately retry as
that would cause a loop.
So whenever a recovery fails, we set conf->recovery_disabled to match
mddev->recovery_disable. And whenever something changes which might make
recovery possible, we increment mddev->recovery_disabled, so that it tries
again.
With raid10, the 'recovery_disabled' is per-disk, not per-array.
NeilBrown
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 828 bytes --]
next prev parent reply other threads:[~2012-04-09 0:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-07 9:13 about:conf->recovery_disabled and mddev->recovery_disabled majianpeng
2012-04-09 0:03 ` NeilBrown [this message]
2012-04-10 5:37 ` majianpeng
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=20120409100329.5eff419d@notabene.brown \
--to=neilb@suse.de \
--cc=linux-raid@vger.kernel.org \
--cc=majianpeng@gmail.com \
/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.