Accession Number:

AD0758800

Title:

Survival of Data for On-Line Data Acquisition Systems,

Descriptive Note:

Corporate Author:

MATHEMATICS AND COMPUTATION LAB (OEP) MCLEAN VA

Personal Author(s):

Report Date:

1972-08-01

Pagination or Media Count:

24.0

Abstract:

The report presents a technique for insuring survival of data input to on-line data acquisition systems. The primary design criteria leading to the technique are discussed. The technique utilizes a logging mechanism for recording changes to files that are critical to such on-line application systems. Data to be logged is transferred to a stand-alone log run via the FMS-8 core-to-core executive requests. Recovery of on-line files is simply a matter of reconstruction from entries on the log file.

Subject Categories:

  • Information Science

Distribution Statement:

APPROVED FOR PUBLIC RELEASE