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From: liam@cs.qmw.ac.uk (William Roberts)
Newsgroups: comp.unix.aux
Subject: Re: A/UX 2.0 and NFS
Keywords: A/UX, 2.0, NFS, Sun
Message-ID: <2615@sequent.cs.qmw.ac.uk>
Date: 7 Aug 90 14:22:33 GMT
References: <12171@hydra.gatech.EDU>
Organization: Computer Science Dept, QMW, University of London, UK.
Lines: 52

In <12171@hydra.gatech.EDU> wj4@prism.gatech.EDU (JOYE,WILLIAM A) writes:

>Just a note about some info I found out from AUX support. Seems A/UX 2.0 
>uses NFS version 2.0. SunOS 4.0.3 uses NFS 3.0. There have been several
>reports of compatibility problems between the two from users. I have
>seen problems with the DeskTop Manager of NFS mounted file systems on
>a Sun/4 110. At this time, Apple does not have a work around.

More details, please.

I don't know what you mean by "NFS 2.0" and "NFS 3.0". Both A/UX (all
releases) and SunOS 4 (4.0,4.1) use version 2 of the NFS protocol as reported
by rpcinfo. The include files under A/UX 2.0 have lines saying

/* NFSSRC @(#)vnode.h   2.1 86/04/11 */

On my SunOS 4.1 machine the corresponding comment is

/*      @(#)vnode.h 2.43 89/05/16 SMI   */

On my VAX machine, for which we bought the NFS 3.0 source licence, having
upgraded from the NFS 2.0 source, it says

/* NFSSRC @(#)vnode.h   2.1 86/04/11 */
/*      @(#)vnode.h 1.1 86/02/03 SMI    */

The VAX source matches the NFS implementation in SunOS 3.0, which lacked
facilities such as the kernel routine wakeup_one which appeared in SunOS 3.2
and is definitely present in A/UX 1.0 onwards.

Looking at the SCCS ident in the nfsd program (as another clue), we see

A/UX 2.0:	Copyright (c) 1983-87 Sun Microsystems Inc., All Rights Reserved.
		{Apple version 1.4 89/10/09 21:00:37}

SunOS 4.1:	nfsd.c 1.10 88/08/04 Copyr 1985 Sun Micro
VAX (NFS 3.0):	nfsd.c 1.1 86/02/03 Copyr 1985 Sun Micro


From all this evidence (plus trying to get an up-to-date NFS source licence)
I conclude that A/UX is using what I would refer to as NFS 3.2, and that
SunOS 4.1 is using what Sun now call ONC/NFS 4.0. 

I would be interested to know what the "compatibility problems" are supposed
to be, especially since there is no mention of an such problems in the
Sun customer distributed buglist.
-- 

William Roberts                 ARPA: liam@cs.qmw.ac.uk
Queen Mary & Westfield College  UUCP: liam@qmw-cs.UUCP
Mile End Road                   AppleLink: UK0087
LONDON, E1 4NS, UK              Tel:  071-975 5250 (Fax: 081-980 6533)