The period 1989 - 1994:
Early 1990, the final report by the working group "Vervanging CYBER 840A" of the FEL IT-Policy committee (ITBC)
was completed and delivered to the FEL management.
Based on the developments in large scale computing and the other computing requirements
at TNO-FEL and TNO-PML the following recommendations were given:
Computer families at TNO-FEL
Based on these recommendations, it was decided to:
- To stop the NOS/VE based computing by ending the
CYBER 840A contract on June 1, 1990 and to
stop new activities and (slowly) migrate current activities from the NOS/VE
platform. A CYBER 930 should provide these services.
- Decrease the supported number of operating system families.
- Decentrally managed back-end/front-end systems concept that coincides with central facilities.
- end the CYBER 840A contract on May 1, 1990;
- a temporary performance upgrade of the CYBER 930-11
from June to December 1990 by doubling the CPU speed (CYBER
930-31) to handle the additional workload that moved from the CYBER 840A
and could not immediately be migrated. The disk capacity was increased to
1.7 Gbyte. The CYBER 930-11 was powered of at the end of 1993. The Cyber
hardware was later used to obtain a competative discount when bying a server
of another brand.
A technical working group looked after several options for a central UNIX server
facility. This central facility had to provided backup and other network servicesfor
the Convex system as a backend server and for the
decentral Unix workstations. The working group considered systems by HP,
Graphics, DEC and CDC.
In the end, it was decided to acquire a Control Data
4380 (MIPS 3840 system) with a jukebox backup system.