The client upgraded CA View from 12.2 to 14.0, and when trying to connect to their CICS region, they received the following message:
EBCXST21 Max Users or XMS region is not active SUBSYS='XME0'
EBCXMM04 Connected Program abended
Release : 14.0
Component : CA View
The client received the following message, following a View 14.0 install, when starting up SARXMS for the first time:
EBCXST21 Max Users or XMS region is not active SUBSYS='XME0'
The message means that a XMS task with SUBSYS of XME0 is being sought after, and any of the SARXMS tasks that are running do not have that SUBSYS value.
The resolution is:
. Change the XMS parameter to SUBSYS=XME0.
. If the XMS task is running, issue either:
. . F SARXMS,SHUTDOWN - To immediately terminate the task and all user sessions.
. . F SARXMS,QUIESCE - To terminate the task after all users first end their sessions.
. . Note: P SARXMS - Can be used for the above, as well
. Restart the XMS task.
Set the SARXMS task REGION=nnnM to a definitive value, rather than using REGION=0M to determine the allocation.
For MAXUSERS=120, setting to a minimum of REGION=80M for the task should be considered.