Example: IODF definition

An example of how the IODF could look.

Only the FCP channel must be configured within the mainframe. All other parameters must be configured outside the mainframe, that is, within switches or at the target storage system.

In this example two channels of a FICON® or FICON Express hardware feature are configured as FCP. First two FCP CHPIDs are defined, both get the number 50, one for channel subsystem 0 and one for channel subsystem 1. An FCP control unit 5402 is then assigned to these new CHPIDs. The last step is to define several FCP devices starting with device number 5400.

CHPID PATH=(CSS(0),50),SHARED,                                *
      PARTITION=((LP01,LP02,LP03,LP04,LP05,LP06,LP07,LP08,LP09*
      ,LP10,LP11,LP12,LP13,LP14,LP15),(=)),PCHID=160,TYPE=FCP
CHPID PATH=(CSS(1),50),SHARED,                                *
      PARTITION=((LP16,LP17,LP18,LP19,LP20,LP21,LP22,LP23,LP24*
      ,LP25,LP26,LP27,LP28,LP29,LP30),(=)),PCHID=161,TYPE=FCP

…

CNTLUNIT CUNUMBR=5402,PATH=((CSS(0),50),(CSS(1),50)),UNIT=FCP

…

IODEVICE ADDRESS=(5400,002),CUNUMBR=(5402),                   *
      PARTITION=((CSS(0),LP01),(CSS(1),LP16)),UNIT=FCP
IODEVICE ADDRESS=(5402,002),CUNUMBR=(5402),                   *
      PARTITION=((CSS(0),LP02),(CSS(1),LP17)),UNIT=FCP

…

IODEVICE ADDRESS=(5460,144),CUNUMBR=(5402),                   *
      PARTITION=((CSS(0),LP15),(CSS(1),LP30)),UNIT=FCP