Re: [Qemu-devel] cache=writeback and migrations over shared storage

2013-10-03 Thread Filippos Giannakos
On Thu, Sep 26, 2013 at 09:31:00AM +0200, Stefan Hajnoczi wrote: > Hi Filippos, > Late response but this may help start the discussion... > > Cache consistency during migration was discussed a lot on the mailing > list. You might be able to find threads from about 2 years ago that > discuss this

Re: [Qemu-devel] cache=writeback and migrations over shared storage

2013-09-26 Thread Stefan Hajnoczi
On Wed, Sep 11, 2013 at 05:30:10PM +0300, Filippos Giannakos wrote: > I stumbled upon this link [1] which among other things contains the following: > > "iSCSI, FC, or other forms of direct attached storage are only safe to use > with > live migration if you use cache=none." > > How valid is thi