[3451] in linux-scsi channel archive
Re: Name assignation of scsi devices
daemon@ATHENA.MIT.EDU (C.J. Oster)
Wed Mar 4 19:17:34 1998
Date: Wed, 4 Mar 1998 16:56:56 -0600 (CST)
From: "C.J. Oster" <lordvadr@pobox.com>
To: Mr LEROY christophe <leroy@meg.fr>
cc: linux-scsi@vger.rutgers.edu
In-Reply-To: <mxMail.9834134530@meg.meg.fr>
I must agree. If I don't powerup my cdwriter, my cdrom changes from sdb
to sda, making all of the links and fstab entries unusable. If I unhook
my cd or burner to hook it up to another machine, it does the same. I'd
be nice if scsi id 1 was sda, 2 was sdb, etc.
-CJO-
On Wed, 4 Mar 1998, Mr LEROY christophe wrote:
> Assigned devices names to scsi drives:
>
> When linux boots, it assignes dynamically names to scsi devices:
> - When you add a disk, all your disks whose target is upper are changed, so you
> have to modify you /etc/fstab, /etc/mdtab and /etc/raid?.conf
> because sdc has become sdd and so on
>
> One can say it is not important as you dont change disks often, but
>
> When a disk is on fire, and you have configured your linux with raid1 to
> continue to work in such a situation, it doesn't work because on reboot,
> your defectuous disk hasn't been detected so drives designations have changed
> and
> mdadd doesn't work
>
> So I think it would be better to have fixed scsi device named as you have
> for IDE (hdc is always the second IDE master, even if there is no first IDE
> slave
>
> Christophe Leroy
>
>
> -
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