From owner-freebsd-doc@FreeBSD.ORG Thu Sep 16 00:20:26 2004 Return-Path: Delivered-To: freebsd-doc@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0648516A4CF for ; Thu, 16 Sep 2004 00:20:26 +0000 (GMT) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 28F2F43D31 for ; Thu, 16 Sep 2004 00:20:25 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.12.11/8.12.11) with ESMTP id i8G0KPiA004655 for ; Thu, 16 Sep 2004 00:20:25 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.12.11/8.12.11/Submit) id i8G0KPc7004654; Thu, 16 Sep 2004 00:20:25 GMT (envelope-from gnats) Resent-Date: Thu, 16 Sep 2004 00:20:25 GMT Resent-Message-Id: <200409160020.i8G0KPc7004654@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-doc@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Guy Harris Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8266C16A4CE for ; Thu, 16 Sep 2004 00:15:41 +0000 (GMT) Received: from www.freebsd.org (www.freebsd.org [216.136.204.117]) by mx1.FreeBSD.org (Postfix) with ESMTP id 77AB343D2D for ; Thu, 16 Sep 2004 00:15:41 +0000 (GMT) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.12.11/8.12.11) with ESMTP id i8G0Ffix066631 for ; Thu, 16 Sep 2004 00:15:41 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.12.11/8.12.11/Submit) id i8G0FfpN066630; Thu, 16 Sep 2004 00:15:41 GMT (envelope-from nobody) Message-Id: <200409160015.i8G0FfpN066630@www.freebsd.org> Date: Thu, 16 Sep 2004 00:15:41 GMT From: Guy Harris To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-2.3 Subject: docs/71782: mount_nfs man page is a bit out of date X-BeenThere: freebsd-doc@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Documentation project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Sep 2004 00:20:26 -0000 >Number: 71782 >Category: docs >Synopsis: mount_nfs man page is a bit out of date >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-doc >State: open >Quarter: >Keywords: >Date-Required: >Class: doc-bug >Submitter-Id: current-users >Arrival-Date: Thu Sep 16 00:20:24 GMT 2004 >Closed-Date: >Last-Modified: >Originator: Guy Harris >Release: 5.2.1 >Organization: >Environment: >Description: The mount_nfs man page claims that NFS-over-TCP is mainly a BSD thing: -T Use TCP transport instead of UDP. This is recommended for servers that are not on the same LAN cable as the client. (NB: This is NOT supported by most non-BSD servers.) and BUGS Due to the way that Sun RPC is implemented on top of UDP (unreliable datagram) transport, tuning such mounts is really a black art that can only be expected to have limited success. For clients mounting servers that are not on the same LAN cable or that tend to be overloaded, TCP transport is strongly recommended, but unfortunately this is restricted to mostly 4.4BSD servers. which is somewhat out-of-date now. It also seems to think the "-r" and "-w" flags are mainly used for cranking I/O sizes down for use with UDP-only servers on lossy networks, which might lead some to think you can't use it to crank the sizes *up* on, for example, NFS-over-TCP connections. The NetBSD mount_nfs man page says for "-T": -T Use TCP transport instead of UDP. This is recommended for servers that are not on the same physical network as the client. Not all NFS servers, especially not old ones, support this. and doesn't have that BUGS item. >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: