ABCs of z/OS System Programming Volume 3 - IBM Redbooks

4.7 IEBGENER: Adding members to a PDS
Utility control
statements
define record
groups
name members
Sequential Input
Member B
LASTREC
Member D
LASTREC
Member F
Existing
Data Set
Directory
A C E G
Available
Figure 4-10 Adding members to a PDS using IEBGENER
Expanded
Data Set
Directory
ACEGBDF
Member A
Adding members to a PDS
You can use IEBGENER to add members to a partitioned data set or PDSE. IEBGENER
creates the members from sequential input and adds them to the data set. The merge
operation, which is the ordering of the partitioned directory, is automatically performed by the
program.
Figure 4-10 shows how sequential input is converted into members that are merged into an
existing partitioned data set or PDSE. The left side of the figure shows the sequential input
that is to be merged with the partitioned data set or PDSE shown in the middle of the figure.
Utility control statements are used to divide the sequential data set into record groups and to
provide a member name for each record group. The right side of the figure shows the
expanded partitioned data set or PDSE.
Note that members B, D, and F from the sequential data set were placed in available space
and that they are sequentially ordered in the partitioned directory.
A
C
E
G
Chapter 4. Storage management software 119
C
E
G
B
D
F