Thank you for your suggestions. I'm using CentOS 4.4 and the purpose of the cluster is sharing of user filesystem. I know that it's possible via NFS but i would experiment the cluster-suite. If i don't user CS on student-PC can i use GFS instead NFS to export SAN filesystems to student-PC? Thank you Fedele STABILE -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster