The scenario: distro CentOS release 5.2 (Final) glusterfs: glusterfs-client-3.0.0-1.x86_64.rpm glusterfs-common-3.0.0-1.x86_64.rpm glusterfs-server-3.0.0-1.x86_64.rpm configuration (server & client) from: glusterfs-volgen -n storage --transport ib-verbs storage01-ib:/storage infiniband InfiniBand: Mellanox Technologies MT25204 [InfiniHost III Lx HCA] mount command on client return: ... glusterfs#storage-ib-verbs.vol on /storage type fuse (rw,allow_other,default_permissions,max_read=131072) ... error: 1. Copy from local disk to directory /storage (glusterfs) pv < CentOS-5.2-x86_64-bin-DVD.iso > /storage/file 4.29GB 0:00:10 [ 429MB/s] [=================================>] 100% 2. after that when a run any command to gluster storage, this fails whit the next error: ls /storage ls: /storage: Transport endpoint is not connected df Filesystem Size Used Avail Use% Mounted on /dev/sda1 48G 11G 35G 23% / /dev/sda3 171G 188M 162G 1% /data tmpfs 7.9G 0 7.9G 0% /dev/shm df: `/storage': Transport endpoint is not connected before a couple of minutes these commands works whell !!! what is wrong with my configuration? The storage node (glusterfs) is a RAID 6 system of 18 HD, dual quad core whit 32GB RAM. The cliente node is too dual quad core system with 16GB RAM. Thanks in advanced.