SDF-U is a program that allows system administration to modify group and system syntax files in accordance with the needs of the computer center. SDF-U is designed primarily for installing new syntax file versions and uses a subset of the functions and statements provided by the software product SDF-A (see the “SDF-A” manual [4]).
The statements to SDF-U are defined in a separate SDF-U syntax file.
Starting SDF-U
SDF-U can be started under any user ID with privilege STD-PROCESSING or TSOS using the following command:
START-SDF-U |
VERSION = *STD / <product-version> ,MONJV = *NONE / <filename 1..54 without-gen-vers> ,CPU-LIMIT = *JOB-RE ST / <integer 1..32767 seconds> |
VERSION =
Allows the user to select the desired SDF-U version if multiple versions of SDF-U were installed with IMON. If the version is specified within single quotes, it may be preceded by the letter C (C-STRING syntax).
If the product was not installed using IMON or if the specified version does not exist, VERSION=*STD applies.
VERSION = *STD
Calls the SDF-U version with the highest version number.
VERSION = <product-version>
Specifies the SDF-U version in the format [[C]'][V][m]m.naso['].
MONJV =
Specifies a monitoring job variable to monitor the SDF-U run.
MONJV = *NONE
No monitoring job variable is used.
MONJV = <filename 1..54 without-gen-vers>
Name of the job variable to be used.
CPU-LIMIT =
Maximum CPU time (in seconds) which the program may use during execution.
CPU-LIMIT = *JOB-REST
The remaining CPU time for the job is to be used.
CPU-LIMIT = <integer 1..32767 seconds >
Only the specified time is to be used.
SDF standard statements
The SDF standard statements (see "Overview of functions ") are not defined in the SDF-U syntax file, but rather in the SDF syntax file. They are offered globally to user programs that read in their statements via SDF.
Interrupting and resuming SDF-U
If SDF-U is interrupted via 
while a statement is being processed, the program may be resumed in one of two ways:
If SDF-U is resumed using RESUME-PROGRAM, processing of the interrupted statement continues.
If SDF-U is resumed using INFORM-PROGRAM, processing of the interrupted statement is aborted. SDF-U outputs message SDU0443 and awaits the input of a new statement.