IOCP and z/VSE I/O configuration

The information in z/VSE IPL ADD statements must correspond to information in IOCP IODEVICE statements (see Figure 1). Lists of statement input has sample IOCP statements and the corresponding z/VSE IPL ADD statements.

Figure 1. Correspondence between IOCP statements and z/VSE IPL ADD statements
this graphic displays the correspondence between iocp statements and z/vse ipl add statements
  1. ID statement (optional) defines heading data, or titles, for configuration reports. Only one ID statement is allowed.
  2. RESOURCE statement (required) defines the logical partitions and logical channel subsystems. Only one RESOURCE statement is allowed.
  3. CHPID statements (optional) define channel paths. A z/VSE I/O configuration does not use a corresponding statement.
  4. CNTLUNIT statements (optional) define control units. Each control unit must be defined in a separate CNTLUNIT statement. A z/VSE I/O configuration does not use a corresponding statement.
  5. IODEVICE statements (optional) define I/O devices. A maximum of 256 I/O devices can be defined in an IODEVICE statement. Information in the IODEVICE statements must correspond to information in the z/VSE IPL ADD statements.
  6. UUID statement (optional and not pictured) specifies which logical partitions require UUID values.
  7. FUNCTION statements (optional and not pictured) define functions.