From: Neil Brown <neilb@suse.de>
To: Jan De Luyck <ml_linuxkernel_20060528@kcore.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: Raid auto-assembly on LDM?
Date: Thu, 19 Jun 2008 14:29:03 +1000 [thread overview]
Message-ID: <18521.57487.410817.953075@notabene.brown> (raw)
In-Reply-To: message from Jan De Luyck on Sunday June 15
On Sunday June 15, ml_linuxkernel_20060528@kcore.org wrote:
> Hello folks,
>
> I'm trying something which is probably slightly crazy, but I can't get it to work.
>
> What I'm trying is to get the linux kernel to auto-assembly my raid-1 sets,
> which are based on volumes on two LDM disks.
>
> The problem is that the kernel looks for partitiontypes of 0xfd, which I can't
> set (or haven't found yet how to set) for LDM volumes. The assembly fails, and
> the kernel panics.
Sorry, acronym failure: What is LDM??
>
> Another possibility would be to use an initrd/initramfs, but then I'm once again
> stuck with a disk that is not in raid, and ergo a point of failure when the disk
> might crash.
I don't understand your conclusion.
The initrd/initramfs is stored where ever your kernel is stored. If
storing an initrd introduces a single point of failure, then storing
your Linux kernel will too.
Confused.
NeilBrown
>
> (The reason to use LDM is that this way I also can put the other OS on the disk
> in mirror.)
>
> Does anyone have any other ideas? I've searched the web, but noone really seems
> inclined to do it this way...
>
> Kind regards,
>
> Jan
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next prev parent reply other threads:[~2008-06-19 4:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-15 20:13 Jan De Luyck
2008-06-19 4:29 ` Neil Brown [this message]
2008-06-19 6:27 ` Jan Engelhardt
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