Type-2 command environment

The type-2 command environment requires a Common Service Layer (CSL) with Operations Manager (OM) and the Structured Call Interface (SCI). A Resource Manager (RM) is not required. Any IMSplex (including a single-IMS IMSplex) with a CSL constitutes a type-2 command environment.

The type-2 command environment can include a single, standalone IMS™ system, multiple IMS systems that do not share resources, or a full-feature IMSplex that includes RM. The type-2 command environment can also be used with DB/DC, DCCTL, and DBCTL environments.

Some type-2 commands (such as the type-2 commands associated with the Open Database function) have additional requirements.

With a type-2 command environment, you can also use OM command security. You might also need to consider SCI security in a type-2 command environment.

Type-2 commands must be issued from an automated operator application program, such as the TSO single point of control (SPOC) application that is shipped with IMS. IMS offers two interfaces that such application programs can use to communicate with IMS: the Operations Manager (OM) application programming interface (API) and the REXX SPOC API.