On Wed, May 27, 2009 at 6:12 PM, Michael DeHaan <mdehaan@xxxxxxxxxx> wrote:
> I had a user question about how they can specify blktap for Xen in Cobbler
> instead of the file driver (for performance reasons) ... well, it turns out
> they can't (yet).
>
> Under what conditions can we use blktap, and is that advisable? (I had
> thought this might work like virtio, in which case, passing in the os
> version uses a table, but it seems this may only actually depend on the host
> and has no guest limitations?)
>
> It looks like from the virtinst code I could just call
> utils.is_blktap_capable() from my libvirt-using application and if so, then
> pass the driver=DRIVER_TAP options to virstinst.
>
> Good idea? Bad idea?
For Solaris dom0, I have a patch that allows driver and subdriver in
virt-install.
If interested, I'm happy to submit it..Note, our blktap is different
(vdisk). We
have an additional format selection too.
virt-install -p -n nevada -l /export/snv108.iso --nographics \
--noautoconsole -r 1024 \
--disk path=/export/nevada/disk0,size=10,driver=tap,subdriver=vdisk,format=vdi
MRJ
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