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System Management

Showing 36

IMS master terminal (MTO) as an option

Currently, IMS master terminal operator (MTO) should be configured. If MTO is not connected to IMS, MTO messages are kept in MSGQ, it would cause MSGQ D/S limit reach and IMS down. The customer would like to request to make MTO optional, not man...
5 months ago in IMS System Services / System Management 1 Not under consideration

Need DFS3PU00 to create datasets on selected volser

When our customers setup Managed ACB for the first time in their environment, we don't want to let them manually estimate the size of Catalog Database, Secondary Index, Directory, BSDS, Staging, therefore our recommendation is to create these data...
over 2 years ago in IMS System Services / System Management 1 Not under consideration

IMS Support for VSAM Linear database Buffer pools 64 bit addressable

Support for VSAM LINEAR datasets for IMS databases was delivered for the enhancement for databases dataset encryption in 2020. The buffer pools for VSAM LINEAR datasets are still treated like OSAM buffer pools with 31 bit addressability. Anthem ha...
almost 3 years ago in IMS System Services / System Management 1 Not under consideration

Refreshable Exit support for additional exits

Provide refreshable exit support for DFSMSCE0 and DFSQSSP0
almost 3 years ago in IMS System Services / System Management 2 Not under consideration

When a /STO SUBSYS and subsequent /STA SUBSYS is issued, IMS has to be restarted in order to make the dep regions pick it up

The customer needs IMS to be able to start subsystems SSM members dinamically when an external subsystem is having issues. Currently, if a sick subsystem is causing problems, issuing a /STO SUBSYS on the sick subsystem and /STA SUBSYS on another S...
about 3 years ago in IMS System Services / System Management 1 Not under consideration

Move EPCB and CSAPSB Pool above the 64-bit bar

Mizuho-bank is now designing new account system and experiencing ECSA shortage.The main contributing factors are EPCB and CSAPSB pools, despite the efforts of IMS technical team to shrink each PSB size (cutting off the DBPCBs) and reduce IFP regio...
about 4 years ago in IMS System Services / System Management 1 Not under consideration

Add a facility to alow User show how many Transactions have been processed by a SQ Member

Customer reported that in a Shared Queues environment the /DIS Command Outout does not allow him to verify which IMS in the IMSPlex has processed the Transactions.Customer SP's which are implementing new IMS Shared Queues Environments to process s...
about 5 years ago in IMS System Services / System Management 1 Not under consideration

Different handling of U0711-1E in a MPP with JVM.

The environment is IMS V14 running IMS MPP with JVM and COBOL main transaction programs calling JAVA methods via COBOL Object Oriented Wrapper and JNI APIs. Every ABEND in one of this MPP with JVM dependent region causes the rebuild of the JVM wit...
over 5 years ago in IMS System Services / System Management 2 Not under consideration

Reduce CPU usage of writing x'99' logs by zIIP offload

We are planning to use IIDR for IMS for next disaster recovery system. We need to change DBD definitions of source IMS system to write x'99' logs for replication. We conducted performance test on the source IMS system with x'99' logs and CPU cost ...
almost 6 years ago in IMS System Services / System Management 1 Not under consideration

Improve function for compress of IMS type99 log using H/W component instead of MVS service

We plan to use IBM InfoSphere Data Replication for IMS for next disaster recovery system. It needs new IMS type99 log records for data replication at source system.The source system's CPU usage was increased 20 percents by adding type99 log. We wo...
almost 6 years ago in IMS System Services / System Management 1 Not under consideration

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