Installing the Internal Reader

Batch Management Overview › Installing the Internal Reader

Installing the Internal Reader

If your users plan to execute queries using EXECUTE with a report destination of system printer or using SUBMIT, you must first install the CAIVPE internal reader.

z/VSE

See the CA CIS for VSE documentation.

z/OS

Use the JES internal reader supplied by IBM for job submission. The statements of the job stream are written to a sequential file. The file is assigned to the JES internal reader with a DD statement. CAIVPE-based products executing in a partition can share a common JES reader. Interleaving of data from different products assigned to the same reader is prevented by the CAIVPE enqueue mechanism.

For the name of the sequential file under the CICS TP monitor, make an entry in the Destination Control Table (DCT) for the DESTID or use the default. Unless the default is changed during IPC installation, it is IRDR. Following is a sample for making the entry after signing on to CICS:

Verify if the entry is there. If not, go to step 5.
```
CEDA VIEW TDQUEUE(IRDR) GROUP(*)
```
If you need to change an attribute, specify ALTER to the right of the entry and press Enter. Overtype to modify values and press PF3.
Disable and close the TDQUEUE to CICS through:
```
	CEMT INQUIR TDQUEUE(IRDR)
```
If it shows enabled (ENA) and open (OPE(N)), then overtype these two values with the following commands:
```
DIS (disabled)
CLS (closed)
```

If IRDR needs to be defined, issue the following commands:

CEDA DEFINE TDQUEUE(IRDR) GROUP(DQGRP) TYPE(EXTRA) DDNAME(ADRSRB)
TYPEFILE(OUTPUT) RECORDSIZE(80) RECORDFORMAT(FIXED) BLOCKFORMAT(UNBLOCKED)

Install the modified definition into CICS through the following command:
```
CEDA INSTALL GROUP(DQGRP)
```

Make sure there is a DD statement that assigns the file to the internal reader. The DSCNAME keyword in the DFHDCT macro provides the ddname. This entry may already exist as the result of another CA product installation.