Automatic Erasure of Released Disk Space on an IBM 370 Computer Using the MVS Operating System

Abstract

The standard MVS operating system supplied for use on IBM 370 computers does not erase or protect data residing on areas of disk that have been released for reuse. This report discusses the problem and describes efficient techniques that have been developed and installed at the DRCS which automatically erase all data when disk space is released by its owner. This has involved modifying the disk space management software and included some restructuring to eliminate contention for system resources while data is erased.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1980
Accession Number
ADA091957

Entities

People

  • J. C. Gwatking

Tags

Communities of Interest

  • C4I
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Application Software
  • Automatic
  • Classification
  • Computer Access Control
  • Computer Programming
  • Computer Programs
  • Computers
  • Control Systems
  • Corporations
  • Data Sets
  • Data Storage Systems
  • Magnetic Tape
  • Operating Systems
  • Security
  • Standards
  • System Software

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  • Computer science
  • Physics

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  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Government and Public Administration Law.
  • Software Engineering.

Technology Areas

  • Space