Re: [Xen-API] VDI import/export with deltas

[Bob Ball <bob.ball@xxxxxxxxxx>]

Seems like I forgot to respond to this...

> > OpenStack also has a case for using bittorrent to download the VDI from
> peers rather than the central server, but I don't see how to accomplish that
> with the current proposal without requiring double the disk space as we'd
> need to download it then push it into XS.
> 
> So at the moment, do you receive the .vhd data by bittorrent in-place?

We download to a sub-directory so the standard SR scan does not identify an 
incomplete VHD.  Once the download is finished, we rename them (to avoid any 
conflicts), re-write the parentage information and finally move the VHD files 
to the base of the SR and perform an sr-scan so it finds the VHDs and creates 
appropriate VDIs.

Bob


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