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] Does XCP support network boot/diskless dom0?

To: Dave Scott <Dave.Scott@xxxxxxxxxxxxx>
Subject: Re: [Xen-users] Does XCP support network boot/diskless dom0?
From: Martinx - ジェームズ <thiagocmartinsc@xxxxxxxxx>
Date: Thu, 1 Apr 2010 16:37:01 -0300
Cc: Alex Zeffertt <Alex.Zeffertt@xxxxxxxxxxxxx>, "matt@xxxxxxxxxxxxxxxxxx" <matt@xxxxxxxxxxxxxxxxxx>, "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Thu, 01 Apr 2010 12:38:37 -0700
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :from:date:received:message-id:subject:to:cc:content-type; bh=YjDPJb7ADECPtQKgI0uce1x66A1N79ehiWxOab41wRQ=; b=wpkuOILEyGyQjhc0zkDyFKhXvASKbki5m4UTe+loYw1d2G02GiZfc7LJBAq6oPdIjD iq4RuSMlTTt7Y/iPFP6SndDSUt7zi7mJf6NUh8UfrLICgDn2m1uXe33iK1TyPNXGqE9V iVXzoikVZQHSWVgRERqGNyOwHdTiUJ9zVGy20=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; b=PHg7uYrBh/DerFP4ZnRikuJ6B7gOwt7mze4oIV2FF2s3/RFJOWonxOctHtJG3+QKCq vvS9L8LCxi1Mm+05tjTBB/QmUyPmmOESIbrR5iPBpBuMysBcV9i5R5uIeHrmQuWno4i9 2IQmmY5XaRaWbwRQt8W/J4AdvG+QRYjD39cLI=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <81A73678E76EA642801C8F2E4823AD21565E554285@xxxxxxxxxxxxxxxxxxxxxxxxx>
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: <e92cef6b3c01cb4685177e7b53c085d2.squirrel@xxxxxxxxxxxxxxxxxxxxxx> <81A73678E76EA642801C8F2E4823AD21565E554186@xxxxxxxxxxxxxxxxxxxxxxxxx> <4B9776E5.5070902@xxxxxxxxxxxxx> <20100331155052.GU1878@xxxxxxxxxxx> <81A73678E76EA642801C8F2E4823AD21565E554285@xxxxxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
Hi!

 I think if we do a XCP Live CD, just like the Xen Live CD v2.0, the same root file system of the XCP live session can be used to make XCP run from PXE-booted ramdisk root. Since it will be a live system, the entire system will naturally have its root rw fs at the RAM...

 In fact, I'm planning to add a PXE server into the Xen Live CD, so when you boot the Xen Live CD in your network, it will automatically provide a network of diskless Xen servers using the same root file system of the live CD itself, for the Xen diskless dom0s...

 About the state files thats need to survive across XCP reboots can live in another place... Maybe creating a dedicated shared storage for this data will solve the problem...

Any thoughts?!

PS.: Sorry, my english is terrible, I know!  ^_^

-
 Thiago

On 1 April 2010 06:40, Dave Scott <Dave.Scott@xxxxxxxxxxxxx> wrote:

> Nice project! is it available already from somewhere?

I think the necessary host-installer and filesystem changes will end up in the next XCP snapshot build -- is that right, Alex?

> Another question: Have you thought about making XCP totally stateless?
> ie. make XCP run from PXE-booted ramdisk root? And have all the
> state/configuration
> on some management server/node..
>
> This is how VirtualIron (using Xen) used to work..

That's certainly an interesting idea. One of the problems we have atm is that we don't have a good list of all the files in dom0 which contain bits of state.

Cheers,
Dave


_______________________________________________
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