Re: [libvirt] Use flock() instead of fcntl()

On Thu, Jul 25, 2013 at 12:07:44PM +0200, David Weber wrote: > SUSE advises to use indirect leases which we also want to avoid: > https://www.suse.com/documentation//sled11/book_kvm/?page=/documentation/... > > "virtlockd's default configuration does not allow you to lock disk files placed > on a shared file system (for example NFS or OCFS2). Locking on these file > systems requires you to specify a lockspace directory on the VM Host Server by > setting" > > Although that's not completely correct because NFS supports fcntl() > That's just badly written explanation for that config setting. It should really be saying that the default configuration does not provide protection across multiple hosts for file paths which are not visible via a shared filesystem. eg a SAN LUN in /dev/sdNNN won't be protected in the default config.