Hi Assf, I believe that we need the following change in the code that you changed last year. I am starting to test pNFS and if the client has any flags on in the pNFS mask we should check the clients request. diff --git a/src/Protocols/NFS/nfs4_op_exchange_id.c b/src/Protocols/NFS/nfs4_op_exchange_id.c index 15bb386fe..a6b730308 100644 --- a/src/Protocols/NFS/nfs4_op_exchange_id.c +++ b/src/Protocols/NFS/nfs4_op_exchange_id.c @@ -172,7 +172,7 @@ enum nfs_req_result nfs4_op_exchange_id(struct nfs_argop4 *op, /* If client did not ask for pNFS related server roles than just set server roles */ - if ((arg_EXCHANGE_ID4->eia_flags & EXCHGID4_FLAG_MASK_PNFS) == 0) { + if (arg_EXCHANGE_ID4->eia_flags & EXCHGID4_FLAG_MASK_PNFS) { if (nfs_param.nfsv4_param.pnfs_mds) server_pnfs_flags |= EXCHGID4_FLAG_USE_PNFS_MDS; else On another issue if you are familiar with pNFS code, it is checking the pNFS flags only in the NFSv4 block I think it should be at the EXPORT block. NFSv4 { PNFS_MDS = true; PNFS_DS = true; } Thanks, Marc.