Memory requirements

For a directory server to function properly, you must ensure that the system meets the minimum memory requirement.

The runtime memory requirements for the IBM® Verify Directory and the requisite product, DB2®, vary based on the following conditions:

• Number of users in the directory server
• Size of the directory server caches
• Size of DB2 buffer pools

When you tune a directory server for performance gain, you must tune the size of the LDAP caches and setting the DB2 buffer pools to AUTOMATIC. When you tune the memory size, you must consider the memory capacity of the system. Allocating a large amount for the caches might result in an increase in the overall memory requirement. Therefore, cache sizes must be allocated carefully. For more information, see Directory server tuning and Tuning DB2 and LDAP caches.