What is the calculation performed by OPS to indicate the global variable workspace is near full?

Products

• OPS/MVS Event Management & Automation

Issue/Introduction

When the space allocated for global variables reaches the valued indicated by the parameter GLOBALWARNTHRESH the message below is issued: 

OPS4290O GLOBAL VARIABLE WORKSPACE IS xx.x% FULL

What is the calculation performed by OPS to indicate the global variable workspace reached the threshold value?

Environment

Release:
Component: OPSMVS

Resolution

The threshold warning is actually determined by GLOBALBLOCKSUSED / GLOBALMAX. This percentage is the number monitored by GLOBALWARNTHRESH .
GLOBALALLOC is the sum of GLOBALBLOCKSUSED and GLOBALFREE.
GLOBALFREE has the number of blocks that have been allocated and freed later.

The same logic applies to the temporary global variable workspace parameters:

GLOBALTEMPBLKSUSED
GLOBALTEMPFREE 
GLOBALTEMPALLOC
GLOBALTEMPMAX