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Re: [Xen-users] xen dom0 initrd

To: Tim Post <echo@xxxxxxxxxxxx>
Subject: Re: [Xen-users] xen dom0 initrd
From: "Denis J. Cirulis" <denis@xxxxxxxxxxxxx>
Date: Sun, 31 Aug 2008 04:39:51 -0400
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Which version of NFS is best to use to achieve speed ?
My nas has 4 GiB links which are configured to act as one 802.3ad trunk.
But the speed of NFSv3 is not as fast as my iSCSI.

On Sat, Aug 30, 2008 at 10:11:57AM +0800, Tim Post wrote:
> On Fri, 2008-08-29 at 13:52 -0400, Denis J. Cirulis wrote:
> > Hello,
> > 
> > I'm trying to make dom0 boot from SAN (iSCSI), things looks complicated.
> > Just wanted to ask, is it possible to boot dom0 over pxe with kernel and
> > initrd, then mount nfs or iscsi volume with vm images and have
> > completely diskless dom0 ?
> 
> Yes, you'll just need to do some initrd hacking if you want to have them
> boot, login to their targets and mount a root file system on LUN. There
> are some programs out there which take a lot of the manual surgery out
> of this, though I can't think of their names off hand.
> 
> The fastest route to this is to put dom-0's root file system on
> something that can be exported via nfs. Since nfs is already supported
> by the kernel you won't have to change the initrd, just the boot
> options.
> 
> What I highly recommend is having a small, local disk that dom-0 and
> guests can use for swap.
> 
> -- 
> Monkey + Typewriter = Echoreply ( http://echoreply.us )
> 

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