This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-users] domU -->Failure: failed to start /dev/md1

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] domU -->Failure: failed to start /dev/md1
From: Andy Smith <andy@xxxxxxxxxxxxxx>
Date: Sun, 2 Sep 2007 01:26:16 +0000
Delivery-date: Sat, 01 Sep 2007 18:31:19 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <46D9D0DA.2080709@xxxxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
Openpgp: id=BF15490B; url=http://strugglers.net/~andy/pubkey.asc
References: <46D9B37F.60502@xxxxxx> <20070901192108.GV18805@xxxxxxxxxxx> <46D9D0DA.2080709@xxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.5.13 (2006-08-11)

On Sat, Sep 01, 2007 at 09:51:38PM +0100, Nico Kadel-Garcia wrote:
> Is there *ANY* reason to do software RAID, LVM, or other filesystem 
> cuteness in a DomU? Except maybe for configuration testing purposes? Let 
> the Dom0 do the work, I'm quite certain it will be more efficient about it.

I generally agree, although I have some customers who want to manage
their own filesystems with LVM, so for them I give them one block
device with / on and another with nothing on for them to use as an
LVM PV as they please.  So that ends up as LVM on LVM on RAID.  I'm
sure there's a performance hit but haven't benchmarked exactly how

It also has the advantage that when they want more disk space I can
attach another block device and they can add this to their VG
without having to reboot their domU.


Attachment: signature.asc
Description: Digital signature

Xen-users mailing list