4 IBM Tivoli Identity Manager adapters

It is sometimes necessary to tune the IBM Tivoli Identity Manager adapters when doing large provisioning changes or reconciliations. This section should supplement, not supersede, the documentation included with the adapter.

4.1Microsoft Active Directory

The Microsoft Active Directory adapter returns attributes to IBM Tivoli Identity Manager that are not directly retrieved from Active Directory, but rather calculated from other Windows sources. Querying these external sources can slow down Active Directory reconciliations and can be disabled if these attributes are not needed.

The Home Directory Security and Mailbox Permissions are two such attributes. Retrieving this information requires looking up the appropriate access control entry, which is a costly operation. Setting ReconHomeDirSecurity and ReconMailboxPermissions to FALSE in the adapter registry will disable this overhead.

Working with Windows Terminal Services (WTS) attributes can slow down provisioning and reconciliation as well. There are two adapter registry keys that control access to these attributes:

WtsEnabled – This key controls the adapters’ access to WTS attributes. If this key is enabled (set to TRUE) the adapter will have access to provision and reconcile WTS attributes. If this key is disabled (set to FALSE) the adapter will not provision WTS attributes if requested, nor will it return them during reconciliation. The default value for this key is FALSE.

WtsDisableSearch – This key controls whether the adapter will return WTS attributes during a reconciliation (a “search” from the adapter’s perspective). If this key is enabled (set to TRUE), WTS attributes will not be returned in a reconciliation but the attributes will still be updated in account provisions. If this key is disabled (set to FALSE), WTS attributes will be returned in a reconciliation. This key only applies if the WtsEnabled key is set to TRUE. The default value for this key is TRUE.

IBM Tivoli Identity Manager Performance Tuning Guide

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IBM 4.6 manual IBM Tivoli Identity Manager adapters, Microsoft Active Directory

4.6 specifications

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