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Re: [Xen-devel] Xen support online backup?

To: pengfei zhang <zpfalpc23@xxxxxxxxxxx>
Subject: Re: [Xen-devel] Xen support online backup?
From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date: Thu, 28 Jul 2011 12:22:21 +0100
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On Thu, 28 Jul 2011, pengfei zhang wrote:
> I recently used the Xen virtual machine backup tools, such as 'xm save'
> command. And I found that before this tool save the memory and CPU state, it
> first pauses the VM. Do Xen have same tools for online backup the VMs? If it
> do not have one, can I saty that Xen don't support VM online backup?

you are probably looking for xl (or xm) save -c:

Usage: xl [-v] save [options] <Domain> <CheckpointFile> [<ConfigFile>]

Save a domain state to restore later.


-h  Print this help.
-c  Leave domain running after creating the snapshot.

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