Re: [Qemu-devel] [PATCHv2] block: add native support for NFS

[Orit Wasserman]

On 12/18/2013 01:11 PM, Peter Lieven wrote:
> > Am 18.12.2013 um 11:00 schrieb Orit Wasserman <address@hidden>:
> >
> > > On 12/18/2013 01:03 AM, Peter Lieven wrote:
> > >
> > >
> > > > > Am 17.12.2013 um 18:32 schrieb "Daniel P. Berrange" <address@hidden>:
> > > > >
> > > > > 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?
>
> the async you see in the libnfs calls refer to the async API. bdrv_flush will 
> not return before the nfs server completes the request.

That great!

Thanks,
Orit

> Peter
>
> > Orit
> >
> > > > Daniel
> > > > --
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