Distributed data management in a minicomputer network: the SEEDIS experience

Conference · Thu Oct 07 04:00:00 EDT 1982

OSTI ID:5312493

Merrill, D; McCarthy, J; Gey, F; Holmes, H

This paper describes distributed data management aspects of SEEDIS (Socio-Economic Environmental Demographic Information System). SEEDIS is an experimental system for the retrieval, analysis, and display of geographically linked data. SEEDIS operates on nine computers in a nationwide network. Users at any location select and retrieve all data in the same way, regardless of whether they are stored locally or at a remote location. The network implementation has been substantially modified during 1983. New enhancements include: local caching of data files to improve efficiency; linking to an automatic tape library (ATL) to make larger volumes of data accessible; node independence to facilitate automatic sharing of data among autonomous SEEDIS installations without the need for central control; improvements providing robust operation despite unreliable network connections; and automatic recording of all cache transactions for subsequent statistical analysis.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5312493
• Report Number(s): LBL-15075; CONF-8210120-1; ON: DE84008008
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
290200 -- Energy Planning & Policy-- Economics & Sociology
290300* -- Energy Planning & Policy-- Environment
Health
& Safety
530100 -- Environmental-Social Aspects of Energy Technologies-- Social & Economic Studies-- (-1989)
COOPERATION
DATA BASE MANAGEMENT
DEMOGRAPHY
ECONOMIC IMPACT
ENVIRONMENTAL IMPACTS
FORECASTING
INFORMATION SYSTEMS
INTERAGENCY COOPERATION
MANAGEMENT
NATIONAL ORGANIZATIONS
POLLUTION
SEEDIS
SOCIAL IMPACT
US DOE
US DOL
US EPA
US ORGANIZATIONS