Re: [Qemu-devel] [PATCH 1/5] RFC: Efficient VM backup for qemu (v1)

[Stefan Hajnoczi]

On Thu, Nov 22, 2012 at 12:40 PM, Dietmar Maurer <address@hidden> wrote:
>> Did you look at the VMDK "Stream-Optimized Compressed" subformat?
>>
>> http://www.vmware.com/support/developer/vddk/vmdk_50_technote.pdf?
>> src=vmdk
>
> Max file size 2TB?

That is for a single .vmdk file.  But vmdks can also be split across
multiple files ("extents") so you can get more than 2TB.

QEMU has some support for reading vmdks with extents, but I think we
never create files like this today.

Stefan