I've seen the same 100MB/s limit (depending on block size of transfer) with 5 bricks in a stripe and have yet to try ipoib, which I hear improves performance over rdma for some reason. On Wed, Apr 18, 2012 at 5:05 AM, Ionescu, A. <a.ionescu at student.vu.nl> wrote: > Dear Gluster Users, > > We are facing some severe performance issues with GlusterFS and we would > very much appreciate any help on identifying the cause of this.