Re: [Qemu-devel] [Bug 1399191] [NEW] Large VHDX image size

[Stefan Hajnoczi]

On Thu, Dec 04, 2014 at 01:31:38PM -0000, AMULYA L wrote:
> Public bug reported:
> 
> We are trying to convert a VMDK image to VHDX image for deploy to HyperV 
> Server ( SCVMM 2012 SP1) using qemu-img.
> We tried converting the image using both 'fixed' as well as 'dynamic' format. 
> We found that both the disks occupy the same size of 50GB. When the same is 
> done with VHD image, we found that the dynamic disks are much lesser in size 
> (5 GB) than the fixed disk (50GB). 
> 
> Why is that the VHDX generates large sized images for both the formats?
> 
> The following commands were used to convert the vmdk image to VHDX
> format

Jeff, did you fix this recently in commit
85b712c9d5b873562c864e72f69cbf0d87d2fe40 ("block: vhdx - set
.bdrv_has_zero_init to bdrv_has_zero_init_1")?

Stefan

pgpIRRH3onh1e.pgp
Description: PGP signature