[sheepdog] [Openstack-dev][Sheepdog]Add a new driver for Openstack Cinder like Sheepdog volumes

[MORITA Kazutaka]

At Fri, 18 Jan 2013 22:56:38 +0800,
harryxiyou wrote:
> 
> Hi Morita and other developers,
> 
> If i add a QEMU/Libvirt driver(the same as Sheepdog volumes driver in
> Openstack Cinder branch) to let Openstack Cinder support a new block-level
> storage system, I should change following stuffs, right?
> 
> 1, Add a driver file to the dir in Openstack Cinder branch(the same as
> sheepdog.py),
>       https://github.com/openstack/cinder/blob/master/cinder/volume/drivers
> 2, Change the file in Openstack Nova branch(Let libvirt attach HLFS volumes
> to QEMU, the same as sheepdog)，
>       https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py
> 
> Do I should change/add any other files for Openstack? Cloud anyone give me
> some suggestions?    Thanks in advance ;-)

The answer depends on the protocol between QEMU and HLFS.  What is
used for accessing HLFS volumes from QEMU?  Is it iSCSI, NFS, or
something else?

Thanks,

Kazutaka