RE: [Xen-users] Merging two xen nodes together

[Jeff Sturm <jeff.sturm@xxxxxxxxxx>]

How you go about this depends on how you've configured per-node storage.

If, say, you're using file: or tap:aio: with file-backed storage on
dom0, you can eliminate N2 together with its disk image and give the
space back to dom0, which can potentially be allocated to N1.

If the disk image file for N1 is a sparse file, then it can begin to use
the blocks freed by N2.  If not, you may be able to shut down N1 and
grow the image.  Or else just block-attach N2's disk image so N1 can
directly use it.

-Jeff

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Tom Potwin
Sent: Friday, June 12, 2009 6:04 PM
To: 'Chris 'Xenon' Hanson'
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] Merging two xen nodes together

Hi

Sorry. Yes they are DomUs on a single computer. The one I want to get
rid of
is much smaller that the other.

Thanks, Tom

-----Original Message-----
From: Chris 'Xenon' Hanson [mailto:xenon@xxxxxxxxxxxxxx] 
Sent: Friday, June 12, 2009 5:33 PM
To: littimes@xxxxxxx
Subject: Re: [Xen-users] Merging two xen nodes together

Tom Potwin wrote:
> I've been trying to find out the best way to combine two xen nodes 
> together. What I mean is, say I have two nodes, N1, and N2. On N1 is a

> web server, and on N2 is nothing now. I want to get rid of N2, and 
> give it's disk space back to N1. Does anyone know the best route to 
> take to do this?

  "Nodes" is poor terminology. Are N1 and N2 DomUs on a single computer,
or
are they different computers both running Xen, or what exactly are they?

> Thanks, Tom

-- 
Chris 'Xenon' Hanson, omo sanza lettere                  Xenon
AlphaPixel.com
PixelSense Landsat processing now available!
http://www.alphapixel.com/demos/ "There is no Truth. There is only
Perception. To Perceive is to Exist." - Xen


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