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What ever happened to Tandem and NonStop OS 2074


You make what I see as a Good Thing, and one of the greatest acheivements of the Open Source and unix communities to sound like a bad thing.

It is not. What was once a simple OS called Unix has developed into a meta-system. It is a specification of how the userland API and shell commands shall interact with the users. It has been codified well enough to be referenced in public bids through Posix.

Powering all this is a culture of at least three completely different sets of code. There is no monoculture. And these sets interoperate exceedingly well.

What ever happened to Tandem and NonStop OS 2081
Learn to read, Eric. I have no idea what you mean by "computer people" (computer users? computer professionals?). What I meant was "most people who use computers". Obviously, most of the people living in...

There is the original AT&T source train, migrated and rewritten through SVR3, SVR4 and through a number of forks. Early versions of this source train is now released with a weak open source license.

There is the BSD source train, completely vetted as free of AT&T "taint" as part of the BSD-AT&T settlement. This source train is published with a BSD open source license. It currently has more than three different distributions.

There is the GNU+Linux source train, also free from the AT&T stuff, The OS&utilities are implemented as a verifiably different system from the two above. It does share some stuff with BSD, especially in the toolchain. It is released with a GNU license. There are currently tens of Linux distributions.

And there are others. Solaris, AIX, Irix and OSF-1 may not be verifiably different from the three major systems above, but they have significant dievrsity.

And, they interoperate well.

I can (and regularly do) run Linux binaries on FreeBSD. It uses a system pretty similar to PA1050 to do this, plus some loading of dynamic linking.

These systems have adopted almost all the good stuff from Tops20, significant bits from Multics, has decent SMP, graphics is pretty good and portable.

It is standard issue in source distrubutions to have a "configure" script to adapt to the local setup of the OS, so the build and install of a new package from source is normally

What ever happened to Tandem and NonStop OS 2075
OEM .. original equipment manufacture ... however it was also sometimes used as in OEM ... other equipment manufacture with somewhat...

"sh configure; make"

and then as superuser

"make install"

I will counter that using a lot of time and effort on actually positioning the product in the unix gallery was time & money very well spent. This may have come as a surprise for a computer vendor used to dictating terms for all users and customers.

You would be amazed to see how enourmous the source respositories for these systems truly are. I used to track most of it as a source library, but have cut back when a 300GB raid isn't big enough for all the sources unpacked anymore.

Instead of SOUP the world now use CVS. This makes a respository of the official source at any time. (Well, Linus use bitkeeper). The cohesion in terms of actually keeping versions of huge projects together is truly impressive. And when they fork, they stay interoperative to an amazing degree. There are usually very good reasons for such code forks.

Again; this is Good. Your den mother instincts are taking over. The world does not want, or need, a Single Os. We want compebreastive offerings. And we want them to be able to run the applications we like.

Sure, they prioritize. Every system cannot be the solution for everyone. It is called choice. It is what capitalism is supposed to be about.

The thing that they cannot do timesharing is hogwash. Linux (also pre 2.2), OpenBSD; FreeBSD, NetBSD, Irix, AIX, Solaris will all beat the living daylights out of Tops10, Tops20, Multics, Primos and VMS in terms of supporting lots of users. I know. I tested this extensively from 1987-1995. I tested them with up to 1200 network logins, if they could take it. (OK, Tops10 and multics was not available anymore, Tops20 was done more out of curiosa, but Primos and VMS were contenders for a while.

And the *n*x side has gotten an order of magnitude better since then.

Seeing Linux 2.6 on NUMA multiprocessing hardware is truly imperssive. Timesharing indeed. Look at the benchmarks for asterisk, a telephone switch done in software. 8000 processes handle 8000 simultaneous calls on such hardware, and could handle even more with more CPUs atatched. Each of these is a hard realtime process.

Doing this makes timesharing a walk in the park.

You really need to take a look at the process behind large projects like Linux. This is way beyond individual persons.

No, this is not the way things are done today. The "imperial" outlook from the hardware vendor is gone, hopefully forever. I, for one, will fight tooth and nail against this returning.

You start with the customer instead. Decide what is requierd. You then decide what applications are suitable, and what environment in therms of protocols, databases etc are suitable.

Then you go design homes for the applications. Here you need to balance user's needs and maintainability. Then you settle on OS, distribution etc. You may end up with a whole farm of machines with different OS'es.

What ever happened to Tandem and NonStop OS 2079
This information is not hard to come by. Why speculate when a simple search would tell you? The original X Windows was developed by Robert Scheifler from the MIT LCS...

THEN you shop for hardware.

I will take an example, from the largest web site in this country. The spec is all public, except for some small details.

What ever happened to Tandem and NonStop OS 2076
Eric Chomko The PDP11 line through the J11 was open. OEM's could and did buy the 11-73, 11-53 etc and use them...

Database and master web system on a duplicated, homongous solaris cluster. 4x Sun enterprise server. Three full racks of space. Front end for web serving, 2 full 19" racks full of 2U linux servers just running squid. Firewall, cisco plus openbsd, and a secret intrusion detection system. Payment solution, Windows system on cluster with mssql and proprietary payment solution. 6 3U systems in all, raid and backup streamers included. Advert servers; FreeBSD frontends and a MS WIndows back end. A full 19" rack in total. The windows box mainly used for accounting page views to vendors.

This is what a large web site with millions of regular users look like. OK, it may be a BSD instead of a Linux, and solaris may be AIX or Irix, and there may be a zSystem "clbuttic mainframe" thrown in.

I didn't even start on the networking solution.

Such a system would be totally impossible to make with the mindset from the previous post. That mindset must be totally reversed.

-- mrr


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