Re: [Xen-users] COW disks

[Ernst Bachmann <e.bachmann@xxxxxxxx>]

On Wednesday 13 July 2005 23:02, Arijit Ganguly wrote:
> Folks,
> Does Xen support COW disks.

Xen only passes block devices arround.
If you can create a copy on write blockdevice with linux, you can use it with 
xen.
So with current xen stable, it might work with LVM.

Otherwise, from the xen roadmap at  
http://www.cl.cam.ac.uk/Research/SRG/netos/xen/roadmap.html:

- Better copy-on-write filesystem support. Although Linux's LVM snapshot 
capability can be used to provide CoW filesystem support it doesn't scale 
well. A custom approach should do rather better.

/Ernst

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