Knowing when a password is interpreted as case sensitive or not can directly affect how you use a local operating system registry. WebSphere® Application Server exploits the mixed case password option for the Resource Access Control Facility (RACF®) and allows you to use case sensitive passwords.
If you use a Lightweight Directory Access Protocol (LDAP) configuration, you can use mixed case passwords.
For more information on the mixed case password feature in z/OS Version 1.7, see Z/OS V1R7.0 Security Server RACF Security Administrator's Guide. This guide is available under "Security Server and Integrated Security Services. Within the guide, see section 5.2.1.
There is an SDBM alternative setup for LDAP. For more information, see the topic SDBM authorization in the Tivoli® Directory Server for z/OS section of the z/OS V1R11 information center.