On Wed, Dec 18, 2013 at 12:00:03PM +0200, Orit Wasserman wrote: > On 12/18/2013 01:03 AM, Peter Lieven wrote: > > > > > >>Am 17.12.2013 um 18:32 schrieb "Daniel P. Berrange" <berra...@redhat.com>: > >> > >>>On Tue, Dec 17, 2013 at 10:15:25AM +0100, Peter Lieven wrote: > >>>This patch adds native support for accessing images on NFS shares without > >>>the requirement to actually mount the entire NFS share on the host. > >>> > >>>NFS Images can simply be specified by an url of the form: > >>>nfs://<host>/<export>/<filename> > >>> > >>>For example: > >>>qemu-img create -f qcow2 nfs://10.0.0.1/qemu-images/test.qcow2 > >> > >>Does it support other config tunables, eg specifying which > >>NFS version to use 2/3/4 ? If so will they be available as > >>URI parameters in the obvious manner ? > > > >currently only v3 is supported by libnfs. what other tunables would you like > >to see? > > > > For live migration we need the sync option (async ignores O_SYNC and O_DIRECT > sadly), > will it be supported? or will it be the default?
Since this is bypassing the client kernel FS I/O layer question around support of things like O_SYNC/O_DIRECT are not applicable. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
