Use the Centrify DB2 plugin
DB2 systems normally authenticate users against the local Operating System. Therefore, most customers don’t think about performance of authentication and lookups when they centralize authentication to Active Directory. However, as customers centralize authentication to Active Directory, performance considerations become more important since DB2 is very user lookup intensive. Customers that leverage DB2 in their environment should consider using Centrify’s DB2 user and group plugin since it delivers enhanced caching to improves the performance of lookups in a DB2 environment that leverages Active Directory for authentication/authorization.