Having GlusterFS in user space gave us a lot of advantages (development cycle time, bugs not panicking the kernel etc) ... besides in a distributed scale out ar

Having GlusterFS in user space gave us a lot of advantages (development cycle time, bugs not panicking the kernel etc) ... besides in a distributed scale out architecture doing things in kernel or user space does not make much of a difference for performance as either network or the disks become the bottleneck. As you mentioned the storage volume can be mounted via NFS too.