On Thu, Nov 22, 2012 at 1:55 PM, Dietmar Maurer <diet...@proxmox.com> wrote: >> -----Original Message----- >> From: Stefan Hajnoczi [mailto:stefa...@gmail.com] >> Sent: Donnerstag, 22. November 2012 13:45 >> To: Dietmar Maurer >> Cc: qemu-devel@nongnu.org; kw...@redhat.com >> Subject: Re: [Qemu-devel] [PATCH 1/5] RFC: Efficient VM backup for qemu >> (v1) >> >> On Thu, Nov 22, 2012 at 11:26:21AM +0000, Dietmar Maurer wrote: >> > > Did you look at the VMDK "Stream-Optimized Compressed" subformat? >> > > >> > > >> http://www.vmware.com/support/developer/vddk/vmdk_50_technote.pdf? >> > > src=vmdk >> > > >> > > It is a stream of compressed "grains" (data). They are out-of-order >> > > and each grain comes with the virtual disk lba where the data should >> > > be visible to the guest. >> > > >> > >> > What kind of license is applied to that specification? >> >> The document I linked came straight from Google Search and you don't need >> to agree to anything to view it. The document doesn't seem to impose >> restrictions. QEMU has supported the VMDK format and so have other open >> source tools for a number of years. >> >> For anything more specific you could search VMware's website and/or check >> with a lawyer. > > The documents says: VMware products are covered by one or more patents listed > at http://www.vmware.com/go/patents > > I simply do not have the time to check all those things, which make that > format unusable for me.
In think proxmox ships the QEMU vmdk functionality today? In that case you should check this :). Stefan
