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Re: [Xen-users] Getting started with Xen

To: Per Andreas Buer <per.buer@xxxxxxxxx>
Subject: Re: [Xen-users] Getting started with Xen
From: Jean-Michel Hiver <jhiver@xxxxxxxx>
Date: Sat, 28 Jan 2006 18:02:28 +0400
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Yes it is. I would recommend the Sarge packages at

deb http://packages.debianbase.de/sarge/i386/xen3 ./

Is it possible to "migrate" a virtual machine to a completely different PC (with different hardware specs)? That would be a very useful feature to have for upgradability.


Yes. Because Xen completely hides the hardware you can move one or several server to another physical server. You just turn the server off and use your favorite tool (rsync, dump/restore or dd) to copy the files within the virtual server or the whole filesystem(s). If you go nuts and by a SAN for your servers you can even do this process without halting the servers.

Wow! This sounds very cool.

If Xen really *does* completely hide the underlying hardware, so that virtual OSes running have no "way" of knowing what their hardware is, I really see it as a big plus.

I think I can tolerate about 1 hour of downtime per server if the work is done at night, so I guess migration won't be a big issue then.

Cheers,
Jean-Michel.

--
Jean-Michel Hiver - http://ykoz.net/
Découvrez la Réunion des Technologies IP & Telecom
TEL: +262 (0)262 55 03 98 - RCS 434 273 330 SAINT PIERRE



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