Browse Prior Art Database

Anticipation of Data Set Expansion

IP.com Disclosure Number: IPCOM000050719D
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10

Publishing Venue

IBM

Related People

Authors:
Dey, RW Gumaer, RA [+details]

Abstract

This article describes a method for reducing exposure to abnormal terminations of transactions performing inserts of data to data sets because free space is not available to extend the data set. The method comprises the steps of establishing a hedge quantity, and a secondary allocation quantity; periodically comparing the quantity of unused allocated space in the data set to the hedge quantity; responsive to the unused allocated space becoming less than the hedge quantity, attempting to extend the data set based on the secondary allocation quantity, and issuing an early warning message to a user if that attempt fails.