[TUHS] NFS at 40

[Brad Spencer via TUHS]

"Charles H. Sauer via TUHS" <tuhs at tuhs.org> writes:

> Yes. Dell SVR4 definitely included Lachman NFS. I booted Dell SVR4 earlier this evening and saw 1987/8/9 Lachman copyright notices. Lachman NFS might have been bundled in SVR4 by USL.
>
> For (Dell) SVR3, I’m pretty sure Lachman NFS was separately licensed. Dell SVR3 development was before my time there, so I don’t know for sure.
>
> As I think has been previously discussed on TUHS, I was part of IBM licensing NFS directly from Sun to be included on all IBM platforms, not just AIX. For AIX for RS/6000, there would have been no Lachman involvement. I assume that was also the case for AIX/370 & AIX PS/2.
>
> I also assume that other large companies, HP, Digital, … would not have used Lachman, but worked directly with the Sun code.

A long time ago when I was working at AT&T in one of the software
development groups we used a Vax running SVR3.0 and later SVR3.1 from
DEC as our software platform.  I worked with a coworker who did the
systems programming and such for the platform and in our talks it came
out that the IP stack in that SVR3.x on the Vax was from Lachman ported
in by DEC.  DEC tossed out the code base, whatever might have existed,
that AT&T provided with the source reference for doing IP related stuff.
This would have been in the 1990s.  The coworker seemed to indicate that
the Lachman code performed better and/or had all of the parts that one
might expect in a IP stack that were missing in the AT&T version.  We
didn't run NFS on the Vax.

> Charlie 
>
>> On Sep 25, 2025, at 7:38 PM, Tom Lyon via TUHS <tuhs at tuhs.org> wrote:
>> 
>> Lachman provided the reference NFS ports for System V folks, and lots of
>> porting work for various vendors.  IIRC.
>> 
>> On Thu, Sep 25, 2025 at 5:36 PM Larry McVoy via TUHS <tuhs at tuhs.org> wrote:
>> 
>>> Does anyone know why Ron Lachman was there?  What did he do for NFS?
>>> 
>>> On Wed, Sep 24, 2025 at 09:38:55AM -0700, Al Kossow via TUHS wrote:
>>>> https://nfs40.online/
>>>> 
>>>> this is all pretty cool
>>> 
>>> --
>>> ---
>>> Larry McVoy           Retired to fishing
>>> http://www.mcvoy.com/lm/boat
>>> 
>
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-- 
Brad Spencer - brad at anduin.eldar.org