Re: [Xen-users] p2v migration + Xen

[Nate Carlson <natecars@xxxxxxxxxxxxxxx>]

On Tue, 18 Apr 2006, Dan Hawker wrote:
> We are using Xen to help keep certain services separate on the LAN but 
> also to create multiple virtual machines for safe and easy software 
> development across multiple platforms (all Linux based).
> Am looking for some advice/tips/how-tos/whatever to help in a p2v 
> migration I am about to undertake.
> We have a machine in place that I would like to migrate, however am 
> unsure as to what the best option would be. I am not going to get much 
> time for the machine in question to be *not available*, so wondered if I 
> could use rsync or similar to create a backup of the filesystem in 
> question directly into a directory structure on the new server for the 
> resultant Xen VM. I could do this whilst all things are still live. At 
> the moment we'd like to swap over, we could then do a quick and final 
> rsync, turn off the original server and bring the Xen VM up.
> Does this make sense??? I presume there will be some directories and 
> files that shouldn't be migrated (/dev, /tmp, etc) which files/dirs are 
> safe to leave behind???
If you're not using udev, you'll want to migrate /dev over. /tmp is also 
fine.
I usually just exclude /proc and /sys.

> The reason I'd like to move the server over, rather than install a new 
> VM and update it, is because as mentioned its a software dev box and has 
> been here a while, (before I arrived). Hence I am unsure as to what 
> packages and apps have been installed and how.
Sounds quite reasonable to me. It's similar to how I do it..

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| nate carlson | natecars@xxxxxxxxxxxxxxx | http://www.natecarlson.com |
|       depriving some poor village of its idiot since 1981            |
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