Re: [Xen-users] XEN write speed

[James Wilson <jwilson@xxxxxxxxxxxxxxxxx>]

The space is fully allocated.

Daniel P. Berrange wrote:
> On Thu, Jun 21, 2007 at 10:55:23AM -0500, James Wilson wrote:
>   
> > Looking for some advice on write speed. I currently have my domU's 
> > installed to 8GB files on a GFS file system. When I create these domU's 
> > and try to write to them the speed is horrible something that should 
> > take 10 seconds takes about 2 minutes. Is there any way to speed up the 
> > write speed for this configuration? Here is what my .cfg file looks like.
> >     
> Are the files for your disk  sparse, or fully-allocated ? If they are
> sparse, then you should re-create them as fully pre-allocated. Whenever
> a sparse disk has to be extended to allocate further blocks performance
> is horrific.
>
> Dan.
>   
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