Visara CNA-8000 Installation - Manual (Page 60)

Chapter 4. ESCON/FICON XCA Configuration
4-4 707158-003
Field Definitions
CU Number: Allows you to select which of the CUs you wish to work with. CU
numbers represent an index number associated with the CNA-8000 and does not
reference anything specific in the host gen. Only CUs that are currently defined will be
listed in the dropdown list. Note the following CU Number ranges used by the CNA-
8000:
 ESCON 0 – CU 0-F
 ESCON 1 – CU 10-1F
 FICON 0 – CU 20-2F
 FICON 1 – CU 30-3F
 FICON 2 – CU 40-4F
 FICON 3 – CU 50-5F
CU Name: This is a 16-character field that you may enter a name to represent the CU in
other panels. Choose a name that is descriptive for your environment.
Protocol: This value represents the type of characteristic the CU will have. The only
valid value for this field is “XCA”. No other options should be offered on this model.
CUADD: This parameter corresponds to the CUADD value assigned in the CTRLUNIT
macro in the IOCDS gen. The CUADD parameter is a single hex digit (0-F). If the
CUADD parameter is not explicitly defined in the CNTLUNIT macro, then the default
value used is ‘0’.
LPAR Number: This is the LPAR number that is assigned the LPAR that will have
control of this CU. The LPAR number is assigned in the RESOURCE macro of the
IOCDS gen. The controlling LPAR name is identified in the IODEVICE macro as the
PARTITION parameter.
Host Director Port:
ESCON – This field should contain 2 hex digits, and refers to the logical port on an
ESCON director that is connected back to the host CPU. If no director is being used, you
should define the value as either ‘01’ (directly attached) or ‘FF’ (wildcard); either should
work.
FICON – This field must contain a 4 hex digit value that represents the Link Address of
the host. The Link Address consists of a 2 hex digit Domain ID field followed by a 2 hex
digit logical port number indicating the port that is connected back to the host. If no
director is being used, you should define the value as ‘FFFF’.
Low Address: This is the value of the lowest address assigned in the range of addresses
specified by the UNITADD parameter in the CTRLUNIT macro of the IOCDS gen.
High Address: This is the value representing the highest address assigned by the range
of addresses specified by the UNITADD parameter in the CTRLUNIT macro of the
IOCDS gen.