Netscape LDAP Directory Tuning

When using a Netscape LDAP directory for the policy store or user directory, follow these guidelines:

Configure a primary and secondary directory, and configure the Policy Server to failover to the secondary directory. Configuring a backup directory ensures that if the primary directory fails, the secondary directory can be used in its place.
Modify the LDAP directory timeout value to a number that is less than the Web Agent request timeout. For example, if the Web Agent request timeout is 60 seconds, set the LDAP timeout to 50 seconds. Setting a smaller timeout for the LDAP directory will avoid waiting for the LDAP directory to respond.
Increase the size limit in entries. Specifies the maximum number of entries to return from a search operation.
Increase the look thru limit entries. Specifies the maximum number of entries that are checked in response to a candidate search request.
Increase max entries in cache. Specifies the number of entries the directory server will maintain in cache. Increasing this number uses more memory but can substantially improve search performance.
Increase the DB cache size in bytes. Specifies the size in bytes of the in-memory cache. Increasing this number uses more memory but can substantially improve server performance, especially during modifications or when the indexes are being built. However, do not increase this number beyond the available resources for your machine.

For more information, see your LDAP documentation.