There are 3 LPARs in a PLEX
SHOW DDSN says the same databases are in use in all 3 LPARS.
no cache of LIDs
LID updates on LPAR SYSA are not seen in LPAR SYSB or SYSC
LID updates on LPAR SYSB or SYSC are seen on LPAR SYSA
Release : 16.0
Component : CA ACF2 for z/OS
Problem was caused by acf2 sysplex processing being disabled.
A review of a SHOW SYSPLEX revealed that ACF2 SYSPLEX processing
WAS DIABLED ON SYSA
issued F ACF2,SYSLEX(START) to restart the sysplex process.
Changes to the logonid database were then able to be see on all lpars.