Validation fails if any of the following conditions are not satisfied (except where it is noted that only a warning is issued).

• Base configuration information must exist. If you specify a default management class, you need to have defined the management class.
• Each possible outcome of the data class, storage class, management class, and storage group ACS routines must have a corresponding definition in the SCDS. For example, if you have five unique storage classes that can be determined by the storage class ACS routine, then you must have five corresponding storage class definitions in the SCDS.
• All classes and storage groups referenced in all ACS routines exist (issues a warning only).
• The storage group ACS routine exists.
• At least one VIO, pool, object type storage or tape group exists.
• All pool and dummy storage groups have at least one volume.
• At least one storage class exists.
• All pool and VIO storage groups are possible outcomes of the storage group ACS routine (issues a warning only).
• No dummy storage group is set by storage group ACS.
• All libraries associated with storage groups must exist in the configuration.
• Every optical library must have at least one drive associated with it.
• The DATABASE 2 (DB2®) qualifier specified for each object or object backup storage group must be unique.
• Object and object backup storage groups can have up to eight real or pseudo optical libraries, but not both.
• An object or object backup storage group cannot reference a tape library.
• A tape storage group cannot reference an optical library.
• A tape storage group must have at least one tape library.
• If a default entry data class is specified, the data class must exist in the configuration.
• All cache sets specified in storage classes must be defined in the base configuration.