WARNING - OLD ARCHIVES

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/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

RE: [Xen-users] partitions + iscsi = mass confusion

To: "James Dingwall" <james.dingwall@xxxxxxxxxx>, "Fajar A. Nugraha" <fajar@xxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] partitions + iscsi = mass confusion
From: "Gary W. Smith" <gary@xxxxxxxxxxxxxxx>
Date: Wed, 18 Feb 2009 09:46:02 -0800
Cc:
Delivery-date: Wed, 18 Feb 2009 09:47:46 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
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/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
References: <417DD550405AF84F95040DA44520C8E5051972@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx><7207d96f0902180905g634534dy1f7a39fffd3486b6@xxxxxxxxxxxxxx><417DD550405AF84F95040DA44520C8E5051974@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <683099EDC3E36D40942EBF636EB88BF00651516E@xxxxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcmR6xZyoXnh+TtORjOU208V6ruaJgAAMlWXAACBCrAAALgENg==
Thread-topic: [Xen-users] partitions + iscsi = mass confusion
James,
 
Do you have a sample.  I will only be using a limited number of iscsi targets which will be well defined for our organization.


From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx on behalf of James Dingwall
Sent: Wed 2/18/2009 9:30 AM
To: Gary W. Smith; Fajar A. Nugraha; xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] partitions + iscsi = mass confusion


On 2009-02-18 Gary W. Smith wrote:
> Fajar,
>
> Makes sense.  I used to use xvd[x] syntax but when I switched to FC8
as
> my host some time ago it didn't work so I ended up with sd[x].  I've
> updated it a few times so I'm sure it probably works now.
>
> Problem is that I have this on a countless number of VM's (plus
> templates).  If that's what it takes, I guess I will need to do it.
>
> I was just hoping there was a simpler way to get around this (like
> creating a reserved /dev/sda that does nothing or something so that
> hotplug would skip it.
>
> Actually, is there a way to block specific ones in hotplug?  I
remember
> some time ago (probably years now) there was discussion somewhere
about
> setting specific hotplug entries for usb mounts.  I didn't follow it
to
> see if there was ever a resolution.
>
> ps: sorry for top post ... OWA
>
> ________________________________
>
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx on behalf of Fajar A.
> Nugraha Sent: Wed 2/18/2009 9:05 AM To: Gary W. Smith Cc:
> xen-users@xxxxxxxxxxxxxxxxxxx Subject: Re: [Xen-users] partitions +
> iscsi = mass confusion
>
>
>
> On Wed, Feb 18, 2009 at 11:55 PM, Gary W. Smith <gary@xxxxxxxxxxxxxxx>
> wrote:
>> just fine giving.  The problem is that it tries to setup the disk as
>> sda since I don't have a physical sda (as the VM's are already
mounted
>> with the direct paritions that I want.
>
> That's probably one of the reasons why Redhat decided to promote the
> use of xvda for domU's disks instead of hda or sda :)
>
> Try changing your domU config and fstab to use xvda1, xvda2, etc.
>
> PS: Personally I use hda :P
>
> Regards,
>
> Fajar
>

A workaround may be to write udev rules to give your iSCSI devices
persistent alternate names.  If you are connecting multiple targets then
the device names would change if the order they connected changed.  I
have set my system up to create a /dev/iscsi/... device which I
reference instead of the /dev/sd... one.

James



This message and the information contained herein is proprietary and confidential and subject to the Amdocs policy statement,
you may review at http://www.amdocs.com/email_disclaimer.asp

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users