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IBM Tivoli Identity Manager Performance Tuning Guide
Page 1
Table of contents
Table of contents ......................................................................................................................................1
About this guide........................................................................................................................................2
Who should use this guide ...................................................................................................................2
1 Introduction...........................................................................................................................................3
1.1 Vital tunings .................................................................................................................................3
1.2 Initial tunings................................................................................................................................3
1.3 Resource allocation .....................................................................................................................3
1.3.1 Memory....................................................................................................................................4
1.3.2 CPU.........................................................................................................................................4
1.3.3 Disk space...............................................................................................................................4
2 IBM WebSphere Application Server.....................................................................................................5
2.1 Java virtual machine (JVM) size..................................................................................................5
2.2 Workload management (WLM) timeout.......................................................................................5
2.3 Message driven bean (MDB) request timeout.............................................................................6
2.4 Transaction timeout .....................................................................................................................6
3 IBM Tivoli Identity Manager application................................................................................................8
3.1 Recycle bin ..................................................................................................................................8
3.2 Reconciliations.............................................................................................................................8
3.2.1 Threads ...................................................................................................................................8
3.2.2 Limiting attributes returned from the adapter ..........................................................................9
3.2.3 Limiting the attributes evaluated..............................................................................................9
3.2.4 Maximum duration...................................................................................................................9
4 IBM Tivoli Identity Manager adapters.................................................................................................11
4.1 Microsoft Active Directory..........................................................................................................11
5 IBM DB2 .............................................................................................................................................12
5.1 APARs .......................................................................................................................................12
5.2 Buffer pools................................................................................................................................12
5.3 Idle thread timeout.....................................................................................................................12
5.4 Locks per user limit....................................................................................................................13
5.5 Active log duplexing...................................................................................................................13
5.6 Reorg and Runstats...................................................................................................................14
5.7 Additional ZPARMS...................................................................................................................15
6 IBM LDAP Server ...............................................................................................................................16
6.1 APARs .......................................................................................................................................16
6.2 Cache sizes ...............................................................................................................................16
6.3 Max connections........................................................................................................................16
6.4 Changelog limits ........................................................................................................................17
6.5 Row locking on SEARCHTS......................................................................................................17
6.6 Indexing .....................................................................................................................................17
6.7 Runstats.....................................................................................................................................17
7 Best practices .....................................................................................................................................18
8 Regular maintenance .........................................................................................................................19
9 Other resources..................................................................................................................................20