ISMF Library Management makes it possible to monitor and maintain information associated with the OAM configuration and the source control data set. The following information concerning ISMF deals only with its role in an optical storage environment. Although ISMF is used to manage tape libraries and their volumes, it is not discussed in this document in an attempt to prevent redundancy of material found in the z/OS DFSMS OAM Planning, Installation, and Storage Administration Guide for Tape Libraries.