How can I check what our site has MAXUSER set to?

Products

• ACF2
• ACF2 - DB2 Option
• ACF2 for zVM
• ACF2 - z/OS
• ACF2 - MISC
• PanApt
• PanAudit

Issue/Introduction

Hyper PTF RO94841

Title: 64-BIT STORAGE OVERLAY WITH MAXUSER > 4095

PROBLEM DESCRIPTION:                                                     

ACF2 initialization processing erroneously allocates a single            

1MB segment in 64-bit storage for a structure containing multiple        

slots with "ACFQCELL" eyecatchers. The structure needs to be large       

enough to accommodate one ACFQCELL per ASID. For sites that specify       

a MAXUSER value greater than 4095 the single 1MB segment is not          

enough. The problem symptoms are largely unpredictable but will          

typically show a storage overlay in the 1MB segment that follows         

the ACF2 ACFQCELL segment.                                               

                                                                         

SYMPTOMS:                                                                

Symptoms vary depending on how the overlaid storage is being used.       

Known symptoms include abends in ACF04RSV resource rule processing:      

                                                                         

SVCARECV S0C6 at XXXXXXXX LMOD ACF00SVA CSECT ACF04RSV +0010C0           

ACF9C000 S0C4 at XXXXXXXX LMOD ACF9C000 CSECT ACF04RSV                   

                                                                            

How can I check what our site has MAXUSER set to?

Environment

Release:
Component: ACF2MS

Resolution

MAXUSER is an IBM IPL parameter set in member SYS1.PARMLIB(IEASYS00)

MAXUSER=nnnn,                 (SYS TASKS + INITS + TSOUSERS)