[sheepdog] [PATCH] dog/cluster: cluster-wide snapshot save or load specified vdi

[Liu Yuan]

On Thu, May 29, 2014 at 03:34:43PM +0800, Liu Yuan wrote:
> On Wed, May 28, 2014 at 08:43:02PM +0800, Ruoyu wrote:
> > It is useful for users who want to backup or restore only part of
> > all vdi from cluster-wide snapshot.
> > 
> > Usage and example:
> > 
> > 1. save all vdi:
> >    dog cluster snapshot save all /tmp/ss
> > 
> > 2. save some specified vdi:
> >    dog cluster snapshot save test0_1_2 /tmp/ss test0 test1 test2
> > 
> > 3. load all vdi:
> >    dog cluster snapshot load all /tmp/ss
> > 
> > 4. load some specified vdi:
> >    dog cluster snapshot load all /tmp/ss test6 test0 test3
> 
> We already give a name test0_1_2 for a snapshot that contain test{0,1,2}, so I
> think dog cluster snapshot snap_name would suffice.
> 
> I'd suggest following command:
> 
> dog cluster snapshot save snap_name /path # save all the vdi
> dog cluster snapshot save snap_name /path vdi0:snap_name,vdi1:snap_name,... # partially save

Or 

dog cluster snapshot save snap_name /path vdi0,vdi1,... # partially save

Which means we save all the snapshots for vdi0 and vdi1. This will make life
easier.

Thanks
Yuan