On Sun, Dec 01, 2013 at 03:30:55PM +0000, Nux! wrote: > On 01.12.2013 15:08, Niels de Vos wrote: > >Hi all, > > > >I'd like to inform any CloudStack users that there are now patches [0] > >available (for CoudStack) that make it possible to use an existing > >Gluster environment as Primary Storage on CloudStack. > > Hi Niels and thanks for this, it's great news! > What would be the advantage of using this over the more generic > "shared mount point", except for doing it more elegantly? > What everybody is looking forward to I guess is the libgfapi > implementation that would bypass the FUSE layer and hence boost > performance. Currently, users will see little difference compared to using a SharedMountPoint. However, CloudStack now knows about storage on Gluster and can use that information to build XML files for attaching disks to a virtual machine. If in future the XML is structured correctly, QEMU+libgfapi will be used instead of QEMU going through the filesystem (fuse-mount in this case). Depending on how much of my spare time I can dedicate to this, or contributions done by others, it may happen sooner or later... I do not know if there is a noticeable performance difference when the creation of disk-images and their snapshots are done through libgfapi. But, anyway, for this to be included in CloudStack, we would first need to implement a more complete storage support for Gluster in libvirt (based on libgfapi). When libvirt knows how to use libgfapi, CloudStack can be modified to move to the new libvirt configuration/usage. Cheers, Niels _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://supercolony.gluster.org/mailman/listinfo/gluster-users
