Hi Pawankilambi,  I'm guessing you're getting "WARNING: 
   is being mounted. Use of Isilon nodes as NFS clients is unsupported." sort of error. 
   Introducing alien filesystems (even if the File System belongs to Isilon!) to a node's native /ifs structure disrupts our NFS server processing logic. Issues like cluster wide deadlock, isi_gather_info hanging, du/mount commands hanging etc.have been faced multiple times in attempt to do so. This practice used to work under rare circumstances but it is not a supported configuration, as this configuration has not been QA validated at this time.  As an enhancement to OneFS 8.0.0.1, we have completely blocked this functionality to stop users from mounting NFS exports ON the nodes even by mistake.  Hope this helps.  Regards, Dipan
Can we use  NFS mount from isilon node to another isilon node  in ONEFS 8.0.0.1? in the test lab it throws NFS mount errors.
NFS mount from isilon node to another isilon node in ONEFS 8.0.0.1