The chapter "Large objects in BS2000" describes the fundamental theoretical aspects associated with the introduction of large objects (large volumes and large files). The changes that affect pubsets, volumes and files in BS2000 are outlined and general restrictions are mentioned. There is a classification for user programs which describes how the individual programs handle large files.
The chapter "Systems support" outlines the role of systems support in introducing and maintaining large objects.
Emphasis is placed on the additional tasks in the field of “Pubset Management”. But there are also various aspects of “Catalog and File Management” and “System Initialization and Parameter Service” that need to be addressed. One section outlines the changes in the command interfaces which result from the introduction of large objects.
In addition, adjustments to individual utilities that are important in the context of systems support and that have been affected by the extensions for large objects will be mentioned. The end of the chapter provides a summary of potential sources of errors and conflicts.
The chapter "Users and programmers" contains detailed descriptions of the extensions made to non-privileged command interfaces and Assembler macro interfaces to accommodate large files. In addition, there are notes on RFA and high-level programming languages that are affected by large objects. The end of the chapter provides a summary of potential sources of errors and conflicts.
The chapter "Notes on migration" contains notes on the introduction of large files. Necessary technical extensions are described in the previous chapters. Possible steps for migration and the considerations that should be included in planning will be outlined here.
Additional product information
Current information, version and hardware dependencies, and instructions for installing and using a product version are contained in the associated Release Notice. These Release Notices are available at http://bs2manuals.ts.fujitsu.com.