Return-Path: Received: from mx2.netapp.com ([216.240.18.37]:6719 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751564Ab1ARS2j convert rfc822-to-8bit (ORCPT ); Tue, 18 Jan 2011 13:28:39 -0500 Subject: RE: 4.1 no-pnfs mount option? From: Trond Myklebust To: Daniel.Muntz@emc.com Cc: rees@umich.edu, androsadamson@gmail.com, linux-nfs@vger.kernel.org In-Reply-To: References: <20110114151945.GA21629@merit.edu> <20110114153846.GA21766@merit.edu> <1295019712.3576.1.camel@heimdal.trondhjem.org> Content-Type: text/plain; charset="UTF-8" Date: Tue, 18 Jan 2011 13:28:29 -0500 Message-ID: <1295375309.3746.25.camel@heimdal.trondhjem.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 On Tue, 2011-01-18 at 12:44 -0500, Daniel.Muntz@emc.com wrote: > > > -----Original Message----- > > From: linux-nfs-owner@vger.kernel.org > > [mailto:linux-nfs-owner@vger.kernel.org] On Behalf Of Trond Myklebust > > Sent: Friday, January 14, 2011 7:42 AM > > To: Jim Rees > > Cc: William A. (Andy) Adamson; linux-nfs@vger.kernel.org > > Subject: Re: 4.1 no-pnfs mount option? > > > > On Fri, 2011-01-14 at 10:38 -0500, Jim Rees wrote: > > > William A. (Andy) Adamson wrote: > > > > > > No mount option - just configure your machine to not load any pnfs > > > layoutdriver modules. > > > > > > That works, thanks, but I was hoping for a way to have > > layout and non-layout > > > mounts going on at the same time. > > > > Different VMs? > > > > Trond > > Would there be any objections to adding a "nopnfs" mount option to force this behavior? It could be useful at least for testing, possibly for working around server problems, or if an admin knows that certain clients' usage patterns would be better served by disabling pnfs. Yes. Why should we be adding debugging mount options to the upstream code? Just test the damned pnfs code properly before it goes upstream... Trond -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@netapp.com www.netapp.com