On Sat, Nov 01, 2008 at 06:20:27PM -0500, Charles Duffy wrote: > As cache=off is necessary for clustering filesystems such as GFS (and > such is the point of shareable, yes?), I believe this is correct behavior. Yes, I believe you are correct. On a single host our current setup is sufficient, but if several VMs on different hosts are accessing the same underlying shared storage, then we do need to disable the caching of reads. So cache=off for <shared> disks is the safest option. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :| -- Libvir-list mailing list Libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list