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CA MII: GRS ENQMAXA / ENQMAXU Interactions

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Article ID: 133985

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Updated On:

Products

MIM Resource Sharing (MIM) MIM Data Sharing (MII) MIM Tape Sharing (MIA) MIM Message Sharing (MIC)

Issue/Introduction

During IPL it is possible to get the following messages :

....

ISG371I ISGADMIN ISSUED FROM JOBNAME: SMSPDSE ASID: 0008. 686

  REQUEST(SETENQMAX) MAXTYPE(AUTHORIZED) MAXVALUE(X'002DC6C0')

  SPECIFIED.

  PREVIOUS VALUE: X'00000000'.

IGW040I Maximum Enqs set to 3,000,000 from 250,000

....



Are ENQMAX  and ENQMAXU new values  honored by MII ? 


 

Environment

Release : all supported releases 

Component : MII

Resolution


What is ENQMAXA?


•The maximum number of concurrent authorized ENQ requests that can be made within a single address space •Default is 250,000 What is ENQMAXU? •The corresponding maximum for unauthorized ENQ requests with an address space •Default: 16,384 What is the purpose of these maximums? •Protect against inadvertent looping of ENQ requests •ABEND538 results when a maximum is exceeded •Message ISG368E warns when maximum is being approached •This is NOT directly related to a GRS Virtual Storage Constraint

These options are enforced by GRS that will always be active in the system, even when our GDIF is installed.

So, they will still work in a GDIF environment and nothing should be done for GDIF.