Measuring MEMLIMIT on TCPIP Regions

Document ID : KB000127130
Last Modified Date : 01/03/2019
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Question:
Is there a way to display the MEMLIMIT (currently allocated above the bar) storage for TCPIP ?
Is there an alert that can be set when the value is at 80% of the maximum threshold?
Answer:
Use the GPRIVAT command. 
The GPRIVATE command displays information about private area virtual storage memory objects allocated above the 2G bar. 

Or, use the GCOMMON command. 
The GCOMMON command displays information about common area virtual storage memory objects allocated above the 2G bar. 
You can then use the SELECT command to SELECT the ASID that you are interested in. 
SELECT JOBNAME EQ asid

Use the GCOMMON command. The GCOMMON command displays information about common area virtual storage memory objects allocated above the 2G bar.
You can then use the SELECT command to SELECT the ASID that you are interested in. SELECT JOBNAME EQ asid 
Or you can use the REGION Asid command.
The REGIONs command will show you:
G-PVTH    Grande private high nonshared
          (z/OS 1.5 and above)         
G-PVTS    Grande private shared        
          (z/OS 1.5 and above)         
G-COM     Grande common                
          (z/OS 1.10 and above)        
G-PVTL    Grande private low nonshared 
          (z/OS 1.5 and above)         
G-PVT     Grande private               
          (z/OS 1.4 or lower)