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VAX Users See the Writing on the Wall
Snot Locker writes "An informative piece at ComputerWorld talks about how VAX users are anticipating the costly migration to more modern systems. Several noteworthy tidbits, including hints of the port of OpenVMS to Itanium and the tale of VAX systems that have not had a reboot in 6 years!"
If any VAXs admins are reading this and are preparing to send their machines to the landfill, why not check to see if your hardware is on OpenBSD's wanted hardware list? They actively maintain a native VAX port (and it's damn good geek karma!)
Trolling is a art,
Well, most VMS users run on Alpha and has done so since more than ten years. It's not like all VMS users are stuck on VAX and only now has an alternative with Itanium.
Funny, the article does not mention Alphas. Has HP buried that architecture so well?
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Right here.
- It was the University of North Carolina, not a data center.
- It was walled in mistakenly by maintenance workers, not by a remodeling project.
- The server was eventually found by following network cables.
Full articleNathan
The article mentions SRI's Charon VAX. This is very expensive software that requires a USB dongle for licensing.
However, you can also run VAX VMS on a free i386 VAX emulator called SIMH. I don't seem to be able to get very good ethernet performance with SIMH. However, you can run NetBSD/VAX on it out of the box, and OpenBSD will run with a kernel patch. SIMH also has a PDP-11 emulator and includes images of the original UNIX V7 from AT&T (courtesy of SCaldera). SIMH is an interesting way to run both ancient and modern UNIXen without reformatting your PC.
You can also get free VMS licenses for SIMH/VAX. They must be renewed yearly.
Alpha VMS also supported a VAX binary emulator called VEST, which is mentioned in another post here. Support for VEST is dying, however (modern RDB releases have dropped it). The Charon VAX emulator also runs on Alpha VMS.
A good intermediate step in any migration is to use the SIMH simulator (http://simh.trailing-edge.com). SIMH can simulate quite a few systems (including a VAX) at the CPU level. As you may expect, this involves emulating every single CPU instruction... not a very efficient way to run code! However, its saving grace is that modern processors are very fast and old VAX systems are not. Depending on how old your VAX hardware is, you might find that an emulated VAX running on a newer P4/Xeon/Athlon/Opteron will be faster than the stock VAX!
This doesn't solve the migration problem but it does allow you to run your old code on modern easily-fixable and readily-available hardware. Beats having to get all of your parts off of eBay.
Uhh, anything with that kind of uptime almost by definition has to be a clustered system. There is too much potential for things like a backplane to fail. Everytime I see an uptime over a couple years it is invariably a VAX or S/390 or other large system sysplex where it is the cluster that has been up and running continuously for that long, not necessarily a single system. Of course the whole point of large systems like those is that you CAN have uniterrupted access to the system for years at a time.
There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
Systems dudes I worked with also thought VMS's real-time features beat the **** out of Unix, but I'm not an expert on that.
Do science labs still run VMS on alphas, or are they going the way of the dinosaur?
Find free books.
Actually, Cutler himself admits to the VMS+1=WNT thing. In addition, NT originally stood for N-Ten, which was the codename of the i860 RISC processor from Intel. Back then it was dubbed a "Cray on a Chip"; that was NT's original target although Dave always intended to keep the system portable.
In the end, the i860 turned out to be not such a good idea and they moved NT to MIPS -- a chip preferred by Cutler -- as well as familiar to some of the ex-digital crew since I believe Cutler had managed the compiler group for the MIPS-Based DECStations.
There was originally a water cooled version, but by using heatsinks that look like a bed of nails, and ducting the cooling air from a blower in the bottom of the unit to impinge individually on each heatsink ( the ducting is removed in the pic ) it was possible to ditch all the water cooling hardware.
These systems were meant for raised floor installations where chilled air was blown up thru missing floor panels, right into the fan intake.
And that is not a real service guy... he does not have a static strap!
It's kind of strange that the article makes no mention of HP Remarketing, which still provides parts and support.