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IMS System Services

Showing 172

UNCOND option support for a GSAM resource in IMS managed ACB environment

In a management ACB environment, our customers must execute IMS Catalog Populate utility (DFS3PU00) or ACB Generation and Catalog Populate utility (DFS3UACB) when they update existing PSB/DBD resources. However, sometimes they need to fall back th...
about 1 month ago in IMS System Services / System Management 0 Under review

Bypass combined DBRC UNAUTH request for multiple AREAs

/DBR DB and /DBR AREA commands can issue the DBRC UNAUTH request for a list of AREAs, the maximum number of AREAs in one list being 160. When the UNAUTH request is isseued for a list of AREAs, the RECON can be reserved for a long period of time. T...
2 months ago in IMS System Services / Commands 0 Under review

Limit the region type for IRLM lock timeout function

In Japan, most banking customers use an application framework called SAIL, an asset of IBM Japan Consulting, running in their production core banking systems. In the SAIL system, the SAIL control regions run as MPP and the application regions run ...
3 months ago in IMS System Services / General System 0 Under review

Keyword 'ALL' needed for /DIS STATUS command

Current /DIS STATUS command can be issued without any keyword, which can result in massive output messages for all IMS resources generated to WTO.This can impact the operations of system operators. It also affects overall workload throughput due t...
3 months ago in IMS System Services / Commands 2 Not under consideration

IMS ABEND at IRLM ABEND in non-XRF and non-FDBR IMS

In case of IRLM abend, IMS closes and stops all opened DBs and DEDB areas. It takes a while to close and stop these databases, therefore certain period of time is needed to recover from the outage. For XRF and FDBR enabled IMS, there are APARs ( X...
3 months ago in IMS System Services / General System 0 Under review

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

IMS catalog API (DFS3CATQ) GSAM support

There is a restriction that GSAM ACB or DBD control blocks cannot be retrieved from the IMS catalog by using the GET request of the IMS catalog API. https://www.ibm.com/docs/en/ims/15.4.0?topic=dfs3catq-get-request-get-ims-catalog-api The cust...
5 months ago in IMS System Services / System Management 1 Planned for future release

IMS catalog API (DFS3CATQ) sample program

The customer considers using IMS Catalog API to get DBD or ACB from user program, but no sample program is provided. DBRC API provides a sample program DSPAPSMP in the IMS.ADFSSMPL library. Could you please provide a sample program of IMS Cata...
5 months ago in IMS System Services / System Management 1 Planned for future release

PDSE support for IMS (Steplib)

Currently IMS does not fully support PDSEs outside of MODBLKS, PGMLIB, SMPLTS, and SDFSJLIB. However the direction of travel for other Mainframe Components seems to be to move from PDS to PDSE with IMS not falling in line with this. This causes is...
11 months ago in IMS System Services / All components 2 Not under consideration

Create SMF79.15 records when IRLM TIMEOUT value is exceeded but before IMS LOCKTIME is

If LOCKTIME is set in the DFSVSMxx member of the IMS proclib, the creation of SMF 79.15 only occurs at the same time as a 3310 abend for environments other than IMS batch. If SMF 79.15 records are created when IRLM TIMEOUT has been exceeded regard...
12 months ago in IMS System Services / General System 2 Not under consideration

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