On Fri, Jul 06, 2012 at 11:48:15AM -0700, Khawaja Shams wrote: > Hello, > We redid our setup with ext4 instead of xfs - and it seems to work > fine. It sounds like there may be a bug in the integration of xfs + > glusterfs. It's XFS doing pre-allocation of space (i.e. it doesn't expect you to leave holes in the file, which is how glusterfs striping works). There's a mount option to disable preallocation. Are you sure that striping is what you want, rather than simple distribution? It's appropriate if you have a small number of huge files, but if you are throwing a large number of small to medium-sized files around, distribution may be better. Each file then sits on a single filesystem; if you lose one brick, at least you haven't lost all your files.