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General TM

Showing 86 of 8226

Move DLMP/PSBC, PSBW and LUMC pools off ECSA

RFE #78091 is about moving EPCB and CSAPSB pool off ECSA to reduce ECSA usage of IMS. We would like to also have DLMP/PSBC, PSBW and LUMC pool moved off ECSA.
over 6 years ago in IMS Transaction Manager / General TM 2 Not under consideration

RFE for IMS Signon Re-Verificatioin

Provide a run-time IMS parm in DFSPB000 that will allow both password and passphrase re-verification to be activated / de-activated more dynamically than coding the DFDSINTX0 exit routine to set the SCDPVER bit on in the SCD. Also, consider a type...
over 6 years ago in IMS Transaction Manager / General TM 3 Not under consideration

Enhance IRLM to detect cross-subsystem deadlocks

Today the Internal Resource Lock Manager (IRLM) of IMS is not able to communicate with the IRLM of DB2. This causes cross-subsystem deadlock situations not to be detected and not to be resolved. Because such cross-subsystem deadlocks could not be ...
over 6 years ago in IMS Transaction Manager / General TM 3 Not under consideration

IMS OTMA utilization of 64-bit memory for the YTIBs

Each YTIB for an IMS OTMA queued message consumes about 8K of Extended Private Storage from the IMS CTL region. To know how many YTIBs you can afford it depends how much EPVT the IMS CTL region uses at various times. To estimate of how much space ...
almost 7 years ago in IMS Transaction Manager / General TM 1 Not under consideration

Reduce workload of page fix of IMS DRA FP buffers

We use IMS V13. We plan to use IBM InfoSphere Data Replication for IMS to replicate DEDB updates from Main system to Stand-In system and vice versa. We will use bi-directional replication while Stand-In system is providing services. Apply server u...
almost 7 years ago in IMS Transaction Manager / General TM 2 Not under consideration

Dynamic resizing of IMS buffers

Actually a dynamic management is only possible for IMS database buffers, but this would be helpful for a lot of other buffers as well in the case you have defined upper limits for these buffers to prevent a z/OS system from storage problems caused...
about 7 years ago in IMS Transaction Manager / General TM 4 Not under consideration

IMS LOG56FA Field TPMGU=1 after a LOG08 created

In the record x'56FA' of the LOG, the field TPMGU=2 after the creation of a LOG08. Even if the region is in PWFI and that the LOG08 is created because of the PLCT. So we can't use the field TPMGU to count the number of messages processed.
about 7 years ago in IMS Transaction Manager / General TM 3 Not under consideration

Delay the commit of an IMS synchronous program switch target transaction until the original transaction performs the commit

IMS synchronous program switch can be used to synchronously call an IMS transaction from a different IMS application. This allows you to reuse existing functionality within new IMS applications without implementing it again or without copying the ...
about 7 years ago in IMS Transaction Manager / General TM 3 Not under consideration

Message-driven scheduling of IMS BMP/JBP regions

Actually IMS allows no efficient processing of bulk workloads that are hitting the system at unpredictable points in time. When houndreds or thousands of messages for a specific IMS program have to be processed at a point in time batch processing ...
over 7 years ago in IMS Transaction Manager / General TM 2 Not under consideration

Allow IMS to get non-contiguous space in ECSA to avoid abend U0717.

The customer has encountered U0717 abeend . (PMR 83164,695,760) Because of ECSA fragmentation it was failed to getmain for PSBW (set via CSAPSB= option) . In the customer's r environment , 4 IMS Full Function Online subsystems recycled every day w...
over 7 years ago in IMS Transaction Manager / General TM 2 Not under consideration

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