[Users] Extremely poor disk access speeds in Windows guest

Itamar Heim iheim at redhat.com
Wed Jan 29 19:54:09 UTC 2014


On 01/29/2014 07:35 PM, Steve Dainard wrote:
...
> In Ovirt 3.3.2-1.el6 I do not have an option to add a virtio-blk device:
> Screenshot here:
> https://dl.dropboxusercontent.com/u/21916057/Screenshot%20from%202014-01-29%2010%3A04%3A57.png

virtio is virtio-blk (in the beginning, there was only one virtio, 
virtio-blk)

>...
>     Do you have HPET enabled?
>
>
> I can't find it in the guest 'system devices'. On the hosts the current
> clock source is 'tsc', although 'hpet' is an available option.
>
>     How does it work with if you copy from/to local (non-NFS) storage?
>
>
> Not sure, this is a royal pain to setup. Can I use my ISO domain in two
> different data centers at the same time? I don't have an option to
> create an ISO / NFS domain in the local storage DC.

an iso domain can be associated to two data centers (or more, or 
different engines, etc.)

>
> When I use the import option with the default DC's ISO domain, I get an
> error "There is no storage domain under the specified path. Check event
> log for more details." VDMS logs show "Resource namespace
> 0e90e574-b003-4a62-867d-cf274b17e6b1_imageNS already registered" so I'm
> guessing the answer is no.

the answer is yes, please open a separate thread on this issue to make 
it easier to troubleshoot it.

thanks

>
> I tried to deploy with WDS, but the 64bit drivers apparently aren't
> signed, and on x86 I get an error about the NIC not being supported even
> with the drivers added to WDS.
>
>     What is your virtio-win drivers package origin and version?
>
>
> virtio-win-0.1-74.iso ->
> http://alt.fedoraproject.org/pub/alt/virtio-win/latest/images/
>
>
>     Thanks,
>     Vadim.
>
>
>
> Appreciate it,
> Steve




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