Example 4: Control statements for PHDAM

Changing randomizing parameters for all partitions consistently

This example shows how to change the randomizing parameters for all partitions consistently.

SAMPDB1 is a PHDAM database. This set of CTL statements is the simulation of changing the randomizer name of each partition. HD Tuning Aid assigns the same randomizer name to each partition.

//CTL DD *
SAMPDB1    DFSHDC40
/*

Changing randomizing parameters for individual partitions

This example shows how to change the randomizing parameters for individual partitions.

This example is for an input PHDAM database with two partitions. Change only the randomizer name of the first partition.

//CTL DD *
SAMPDB1
 SAMPP1    DFSHDCAA
/*

Changing the high key value of partition

This example shows how to change the high key value of a partition.

SAMPDB1 is a PHDAM database. This example shows how to change the high key value of a specific partition.

//CTL DD *
SAMPDB1
 SAMPP1    DFSHDCAA                                                    +
 C’1234000000000000100000000’                                          +
 C’00000000000000000000000000000’
/*

The partition high key is assigned as

123400000000000010000000000000000000000000000000000000.

Changing the partition selection

This example shows how to change the partition selection.

SAMPDB1 is a PHDAM database. This example shows how to a change a partition selection from a high key selection to a partition selection exit.

//CTL DD *
SAMPDB1                                                                 S
          DFSPSE00
 SAMPP1                                                                 +
 C’1234000000000000000000000’
 SAMPP2                                                                 +
 C’5678900000000000000000000’
/*

Adding and deleting some partitions

This example shows how to add and delete partitions.

SAMPDB1 is a PHDAM database. This is an example of two additions to and one deletion for a PHDAM.

//CTL  DD *
SAMPDB1
 SAMPP4   RMOD3    1000     10   4096             0      ADD           +
 C’300’
 SAMPP5   RMOD4    2000     20   2048             0      ADD           +
 C’700’
 SAMPP1                                                  DEL
/*

The following table shows the original configuration of the PHDAM database.

The following table shows the modified configuration of PHDAM database that is to be used by HD Tuning Aid for its simulation.