From: Lars Marowsky-Bree <lmb@suse.de>
To: Oktay Akbal <oktay.akbal@s-tec.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: md multipath with disk missing ?
Date: Mon, 9 Sep 2002 17:06:48 +0200 [thread overview]
Message-ID: <20020909150648.GD29@marowsky-bree.de> (raw)
In-Reply-To: <Pine.LNX.4.44.0209091537020.12771-100000@omega.s-tec.de>
On 2002-09-09T15:46:15,
Oktay Akbal <oktay.akbal@s-tec.de> said:
> Example:
>
> We have sda - sdb (8 drives) and setup up a raidtab to tell linux that
> sda and sde are the same sdc - sdd etc.
> Now for some random error the server restarts and the former sda (path to
> that drive) is no longer available. So now we have sda,sdb...sdg.
> We do not use autodetect, but raidstart to activate the raid.
>
> now since the former sda is missing the raidtab does not reflect the
> actual setup. The raidtab would read, that sda and sdb are the same
> drive, which is not true in that case.
>
> (The device-ordering would not be right for a real setup, but take it as
> an example and assume sda-sde sdb-sdf...)
>
> Would the superblock prevent the wrong use of devices ?
I hope so. But yes, your setup would break spectularly because the devices
moved and the raids wouldn't go online. This shouldn't happen with the
autostart feature, I think.
Sincerely,
Lars Marowsky-Brée <lmb@suse.de>
--
Immortality is an adequate definition of high availability for me.
--- Gregory F. Pfister
next prev parent reply other threads:[~2002-09-09 15:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-09 13:08 md multipath with disk missing ? Oktay Akbal
2002-09-09 13:27 ` Lars Marowsky-Bree
2002-09-09 13:46 ` Oktay Akbal
2002-09-09 13:50 ` Steve Mickeler
2002-09-09 20:45 ` Alan Cox
2002-09-09 15:06 ` Lars Marowsky-Bree [this message]
2002-09-10 22:51 ` Neil Brown
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=20020909150648.GD29@marowsky-bree.de \
--to=lmb@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=oktay.akbal@s-tec.de \
/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.