Re: [Qemu-discuss] qemu storage windows issue

[Fam Zheng]

On Tue, 02/23 09:04, Benoit wrote:
> You read in my head ;)
> I thought about this yesterday and tested them and got the same
> result !! It is like as soon as a disk is coming from virtualized
> host I got the issue...
> I also had the idea to create a partition instead of a raw image and
> got the same issue

This indeed makes the application suspicious.  Do you see any other errors
beside that application in question?

(A way to valiate the virtual disk is using a storage tester such as HDTune or
iometer.)

Fam

> 
> On 02/23/2016 02:28 AM, Fam Zheng wrote:
> >On Mon, 02/22 16:36, Benoit wrote:
> >>Thanks Fam
> >>No error on my guest / host
> >>Disk usage in Explorer is exactly what it supposed to be this is
> >>where it is strange...
> >Does your application work well on other storage types, like virtio-scsi or
> >ide?
> >
> >Fam
> >
> >>On 02/17/2016 02:14 AM, Fam Zheng wrote:
> >>>On Tue, 02/16 20:41, Benoit wrote:
> >>>>Hi,
> >>>>
> >>>>-virtio-win-0.1.102.iso
> >>>>-host archlinux / qemu 2.4.1 / kvm
> >>>>-guest windows 7 pro x64
> >>>>-qemu-img create -f raw en_x64_windows_7_ipc2_storage_75 75G
> >>>>
> >>>>-drive 
> >>>>file=/srv/qemu/vm/en_x64_windows_7_ipc2_storage_75,if=virtio,cache=none,format=raw,discard=unmap
> >>>>
> >>>>
> >>>>My D: drive (74GB) has 2x 32GB files used for a program to store data.
> >>>>
> >>>>I realized that my product starts doing FIFO (erasing old data to be
> >>>>able to write fresh data) as soon as the space used is more than
> >>>>4GB. It is like I got the same limitation than a FAT drive, my
> >>>>product detects that the disk is full as soon as more than 4GB are
> >>>>used on the disk.
> >>>Any error message in guest/host?  What does Windows Expolorer say about the
> >>>disk usage?
> >>>
> >>>Fam
>