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IMS Database Manager

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Prevent base deleting with procopt L and REUS

When a DBBBATCH is unfortunately submitted with a PSB using procopt L instead of procopt A, the database is emptied (the program is the same with procopt A and procopt L: ISRT CALL).
about 10 years ago in IMS Database Manager / DLI 1 Not under consideration

Backout with GSAM file

To avoid the abend of a bmp, a program can do a rollback to cancel the unit of work that caused the problem. But today, it's not possible with gsam file.
about 10 years ago in IMS Database Manager / DLI 2 Not under consideration

CPU time by OLR in records 29xx of IMS log

We need to have the CPU time of OLR in record “2990” of IMS log (the start is 2910).
about 10 years ago in IMS Database Manager / DLI 1 Not under consideration

Increase OSAM subpools from current limit of 255 to 1024 or 2048

As our BMP workload increases coupled with recent mergers we are fast approaching the limit of 255 OSAM subpool buffers. In our environment we have seen a slow down in BMP processing when too many BMPs are accesssing the same OSAM subpool due to l...
over 10 years ago in IMS Database Manager / DLI 1 Not under consideration

Alter DEDB online without a two stage randomizer

We want to resize DEDBs databases online without using a two stage randomizer.
over 10 years ago in IMS Database Manager / Fast Path 1 Not under consideration

UOW LOCK MODE using has hash value

Now, UOW LOCK MODE user are using same hash value.As a result, False contention causes more than necessary, if multi processing are working on parallel.UOW Lock should use different hash value.This improvement will reduce false contention in case ...
over 10 years ago in IMS Database Manager / Fast Path 1 Not under consideration

Allow an implementation for DFSMS Media Manager parameter UPDATE=YES and CATOUTP=NO

We created a Marketing Requirement #MR0519105051 based on DFSMS Media Manager support team request. Title is "Allow IMSFP-DEDB ADS close without BCS access." So we need new implementation for DFSMS Media Manager parameter UPDATE=YES and CATOUTP=NO...
over 10 years ago in IMS Database Manager / Fast Path 1 Not under consideration

IMS support for WLM IWMCNTN (Contention notification service)

Customer sometimes suffers from very long response time of FP online transactions during heavy IMS BMP workload period.The reason for the delay on online transaction is lock contention. The lock holder is BMP regions.With WLM service class definit...
over 10 years ago in IMS Database Manager / Fast Path 1 Not under consideration

Please remove the latch requirement for DMB obtained during DB compression

We had some IMS BMP performance related issues that showed the more jobs we ran on an LPAR against the same database/partition the slower the jobs would run. Upon review of the IMS Monitor reports and IMS latching log records we noticed a rather s...
almost 11 years ago in IMS Database Manager / DLI 2 Not under consideration

DFSILTA0 utility Output compatibility between before V9 and after V10

Our customer upgraded IMS from V9 to V11 recently. IMS utility DFSILTA0 output increases after upgrading IMS from V9 to V11.There is a twice as many difference as this in the number of processed transactions on a SYSOUT message. And in the number ...
almost 11 years ago in IMS Database Manager / Application Development 4 Not under consideration

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