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

4.2 IEBCOMPR utility
Example 1
Example 2
Directory 1
ABCDGL
Directory 1
ABCFHIJ
Figure 4-2 IEBCOMPR utility example
IEBCOMPR utility
IEBCOMPR is a data set utility used to compare two sequential data sets, two partitioned
data sets (PDS), or two PDSEs, at the logical record level, to verify a backup copy. Fixed,
variable, or undefined records from blocked or unblocked data sets or members can also be
compared. However, you should not use IEBCOMPR to compare load modules.
Two sequential data sets are considered equal (that is, are considered to be identical) if:
► The data sets contain the same number of records
► Corresponding records and keys are identical
Two partitioned data sets or two PDSEs are considered equal if:
► Corresponding members contain the same number of records
► Note lists are in the same position within corresponding members
► Corresponding records and keys are identical
► Corresponding directory user data fields are identical
If all these conditions are not met for a specific type of data set, those data sets are
considered unequal. If records are unequal, the record and block numbers, the names of the
DD statements that define the data sets, and the unequal records are listed in a message
data set. Ten successive unequal comparisons stop the job step, unless you provide a routine
for handling error conditions.
110 ABCs of z/OS System Programming Volume 3
PDSE1 PDSE2
Directory 2
ABCDEFG
HIJKL
PDSE1 PDSE2
Directory 2
ABFGHIJ