SAS(R) 9.1.3 Companion for z/OS

340 SOURCE Procedure Chapter 16
3 route the members of a library to other programs for processing. By default, PROC
SOURCE generates records for the IBM utility, IEBUPDTE, which reloads an
unloaded data set.
3 create a sequential, or unloaded, version of the library’s directory records.
3 construct an unloaded data set from a library. The unloaded data set is suitable
for reloading by IEBUPDTE or other source library maintenance utilities,
including the ability to recognize and properly handle aliases.
Using the SOURCE procedure, a source library can be copied into a sequential tape
or disk data set to create either a backup or a manually transportable copy of the
source data. This copy is called an unloaded data set; it consists of 80-byte records that
contain the source data and the control information that are needed to restore the
source to its original organization. When an unloaded data set is restored by the proper
utility to a device that will support the data in their original form, the data is
reconstructed, or loaded.
An advantage of having an unloaded data set is that one or more members can be
retrieved without reloading the entire library.
PROC SOURCE has several advantages over IBM’s IEBPTPCH utility. With PROC
SOURCE you can
3 list members in alphabetical order
3 select members by specifying a wildcard or range
3 list the number of records in each member
3 list each member on a new page
3 produce an unloaded version of the library that can be ported to some other host
systems.
The model-control-statements in the FIRST, LAST, BEFORE, and AFTER
statements are usually either utility or job control statements, depending on the
destination given by the OUTDD= option in the PROC SOURCE statement.
PROC SOURCE Statement
PROC SOURCE ;
The following options are used in the PROC SOURCE statement:
DIRDD=file-specification
specifies either the fileref or physical file name of the output data set to which
PROC SOURCE writes a sequential, unloaded form of the PDS directory. Each
directory record is written into one 80-byte record. Records are left-aligned and
padded on the right with blanks. If specified, the fileref must match the reference
name that was used in the FILENAME statement, FILENAME function, JCL DD
statement, or TSO ALLOCATE command that allocated the output data set.
Note: The SELECT and EXCLUDE statements have no effect when the
DIRDD= option is specified. R
INDD=file-specification
specifies the fileref or the physical file name of an input PDS that contains 80-byte
fixed-length records. The fileref, if specified, must match the reference name that
was specified in the FILENAME statement, FILENAME function, JCL DD
statement, or TSO ALLOCATE command that allocated the input library. If the
INDD= option is not specified, the default fileref is SOURCE.
If OUTDD is specified, then the RECFM of the INDD file must be either F or
FB. The fileref may not refer to a concatenation of data sets. If it does, then an
error message is generated. If the member names in the INDD file are
nonstandard, then specify FILEEXT=ASIS in an OPTIONS statement.