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[Xen-API] [XCP] RFC: cross-host VDI.copy

To: "xen-api@xxxxxxxxxxxxxxxxxxx" <xen-api@xxxxxxxxxxxxxxxxxxx>, "'xen-devel@xxxxxxxxxxxxxxxxxxx'" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-API] [XCP] RFC: cross-host VDI.copy
From: Dave Scott <Dave.Scott@xxxxxxxxxxxxx>
Date: Thu, 12 Aug 2010 17:28:17 +0100
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Thread-topic: [XCP] RFC: cross-host VDI.copy
Hi,

I've written a proposal on the wiki for "Cross-host VDI.copy" i.e. the ability 
to copy VDIs (disks) and therefore VMs between storage repositories on separate 
XCP hosts:

http://wiki.xensource.com/xenwiki/Cross-host_VDI.copy

Currently XCP only supports copying disks between Storage Repositories where at 
least one host in the pool can see both bits of storage at once i.e. from 
shared -> local; local -> shared; and local -> local on the same host. This 
adds generic support for local -> local disk copying by using the existing "Raw 
VDI import" functionality.

This ought to be especially useful for people who have pools but who don't have 
shared storage.

Comments welcome.

Cheers,
Dave

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