IBM 6.1.X manual IBM Tivoli Directory Server Tuning, Parameter Setting Used

IBM Tivoli Directory Server Tuning

The following table shows the tuning values used for the directory servers.

How-to-Set:These values are in the file /opt/IBM/ldap/V6.0/etc/SchemaV6.0/ibmslapd.conf. You must restart the LDAP server after changing these values.

Table 28: IDS Tuning in Vertical Cluster

Parameter	Setting Used
Ibm-slapdACLCacheSize	250000
Ibm-slapdEntryCacheSize	250000
Ibm-slapdFilterCacheSize	250000
Ibm-slapdFilterCacheBypassLimit	7500

The IBM Tivoli Directory Server uses IBM DB2 as the database server. The database instance and alias are named IDSLDAP. We applied the following tuning to this database:

db2 “update db config for idsldap using dbheap 4800”

db2 “update db config for idsldap using num_iocleaners 5” db2 “update db config for idsldap using num_ioservers 10” db2 alter bufferpool IBMDEFAULTBP size 88500

db2 alter bufferpool LDAPBP size 3690

Required Fixes

∙The following fixes are required to apply in 6.1 Cluster environment,

∙PK67324 (for Windows is PK67800)

∙WAS DynaCache PK67942

∙WAS DynaCache PK59026 (include PK62850 and prereq PK67942), to eliminate renounce messages

∙PK70944: to eliminate GroupCache invalidation

∙PK70890: Friendly URL fix

∙The following fix is required to apply in 6.1.0.1 Cluster environment

PK76988: Cluster performance Degradation by large amount of DRS invalidation messages

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W E BS P HE R E P O R T AL V 6 . 1 T U N I N G G U I D E