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About the systems:
Cray Y-MP EL (yel)
Cyber 960 (cy960)
Cyber 860 (cy860)
Cyber 830 (phoenix)
Desktop Cyber (dtcyber)
Control Data Net (cdcnet)
SGI Origin 2000 (o2000)
CData 4680 (majestix)
Sun Enterprise 10000 (e10k)
Cray T3E (t3e)
NEC SX-4B (sx4b)
NEC UP4800/675 (siox)
Cray J916 (uhu)
Cray J932 (huh)
Cray C90
Cray T3D
Fujitsu VPP300 (vpp)
Bull DPS 6000
Login server (server)
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On German Computers

General pictures
Deinstallation of CY830s
CDC Cyber Boards
Tours day on Nov 23rd 2002
Tours day on Nov 29th 2003
Tours day on Nov 27th 2004
Picking up a Cray J932
Acquisition of IPPs Cray J916
The move
The renovation
Vintage computer rooms
Operating a DEC10
Screenshots CC545
Air Conditioning
Cyber 2000 from Zurich (external)
Moving to datArena (external, short overview)
Moving to datArena (external, long version)

Hardware Projects
Cyber Disk Emulator
MUNIAC Vacuum Tube Computer

Team Members:
John G. Zabolitzky
Alexander Mann
Freddy Meerwaldt
Wolfgang Stief

In memory of:
Seymour Cray
Control Data Corp
Cray Research
Cray Computer Corp

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Wolfgang Stief (

Wolfgang Stief
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Quotes by Wolfgang (German)

I heard about the Cray-Cyber project the first time at VCFE 3.0. At this time, Cray-Cyber wasn't a real project, but more a private collection of some vintage supercomputers. I heard about it a second time, when John G. Zabolitzky and Gaby Chaundry were on air at C-RaDaR (Chaosradio Darmstadt), talking about several aspects in vintage computing. In January 2003 I joined the project with my first actions taken in March 2003: accompany the team at the complete renovation of the server room (which really was quite a lot of work...).

In real life, I'm working as system engineer -- specialized on Sun/Solaris -- in a small company near Munich. In Cray-Cyber, my main focus is on hardware (power distribution, cooling, peripherals, bus systems etc.) as well as operating systems. In my spare time I'm collecting old Sun machines and try keeping them up and running.

You will find some more information about me (most of it in German) -- including my GnuPG public key -- at

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Document last modified on: Sun, 12.October.2014 16:07:00