SNAX/XF LU Network Services Manual

Specifying SCF Configuration Parameters
Using LUNS
2–18 097841 Tandem Computers Incorporated
Use SNAXUTL to add the necessary records for all ESS tables and BIND tables to the
SET table. To add a record for an ESS table, you use the ADD SETESS command. To
add a record for a BIND table, you use the ADD SETLOG command.
Note that the FILENAME operand that follows the object must contain the name of the
table source file where LUNS can find the table information. If you specify the
DEFAULTTABLE Y operand, the ESS table becomes the default table for the system.
Note For both the ADD SETESS and ADD SETLOG commands: when you run SNAXUTL on a volume and
subvolume different from the ones on which the table source file resides, the file name specified in the
FILENAME operand must be fully qualified.
Specifying SCF
Configuration
Parameters
Use SCF to:
Define with an ADD APPL command those processes with which LUNS will
communicate (the Tandem Creator process, SNAXUTL, and the Tandem TACL)
Configure all lines, PUs, terminal LUs, and any gateway LUs
Issue START commands to all lines, PUs, terminal LUs, and any gateway LUs
Each of the object types listed—APPL, LINE, PU, and LU—has attributes that
determine how LUNS operates. The following subsections discuss these attributes.
The ALTER Command The SCF ALTER command can be used to alter the attributes of any previously added
SNAX/XF object. You can alter APPL attributes of the Creator process only if the
Creator process has not issued an open to $SSCP. You can alter lines, PUs, and LUs
only when those objects are in a stopped state.
The following information on attributes of the SCF ADD APPL command also applies
to the ALTER command.
The ADD APPL Command You must use the ADD APPL command to identify to LUNS all those processes on a
Tandem system that must communicate directly with LUNS. This category includes
the TACL process, the Creator process, and the SNAX Creator -2 process. If you want
to take advantage of dynamic ESS table modification, you must also identify
SNAXUTL to LUNS with an ADD APPL command.
This subsection describes the required and optional attributes for APPL object
representing the following:
A TACL process
A Creator process
A SNAXUTL process
The required and optional attributes for an APPL object representing the SNAX
Creator-2 process are described in the SCF Reference Manual for SNAX/XF and in the
SNAX Creator-2 Configuration and Control Manual.