z/IRIS Client Started Task

Created: 29 Mar 2021 | Updated: 31 Aug 2023

Create a z/IRIS client PROCLIB member

Locate the ZIRIS file in the jcl folder of the zosclient_{VERSION}.zip and store it in a concatenated PROCLIB data set. The default member name is ZIRIS but can be changed to any valid member name as required.
Change $APP_HOME in the proclib member to the zFS installation directory for z/IRIS:
TEXT
```
export APP_HOME=/usr/lpp/ziris/ziris114
```
If mode=kafka in the ziris.comm.config file:
1. Uncomment the following line and define the Kafka home directory to z/IRIS z/OS:
  TEXT
```
# export KAFKA_HOME=$KAFKA_HOME
```
2. Change $KAFKA_HOME to the Kafka installation directory on Unix System Services:
  TEXT
```
export KAFKA_HOME=/usr/lpp/kafka/kafka_2.13-3.4.0
```
Change $JVAHOME to the JAVA_HOME directory in Unix System Services, where IBM JZOS or Semeru Runtime is installed.
TEXT
```
export JAVA_HOME=/usr/lpp/java/J11.0_64/
```
Save the proclib member.
Verify that the surrogate user ID is defined in RACF for this started tasked. See Install z/IRIS clients | Preparing-for-the-installation for details about RACF requirements.

Starting z/IRIS clients

To start the z/IRIS client, issue the following MVS Command:

Start z/IRIS started task syntax

CODE

/S ziris

where ziris is the member name of the z/IRIS PROCLIB member.

When z/IRIS reports a failed connection during start-up, check that either the z/IRIS Linux server is active or that the Apache Kafka cluster is running with the accessible topics and brokers.

Stopping z/IRIS clients

To stop the started task, issue the following MVS Command:

Stop z/IRIS started task syntax

CODE

/P ziris

Where ziris is the name of running z/IRIS STC Address Space.

Modify commands

z/OS users with SDSF and MVS Command Permissions, can interact with the z/IRIS client Started Task through MVS Modify Commands.
z/IRIS MVS Command Syntax :

Modify command syntax for z/IRIS started task

CODE

/F ziris,APPL=cmd

where:

ziris: is the name of the z/IRIS STC
cmd: is a valid z/IRIS Modify Command

HELP

lists and displays information about available commands:

z/IRIS HELP modify command

CODE

/F ziris,APPL=HELP

STATUS

displays a summary of current connections with SMF and the z/IRIS IronTap Linux Server.

z/IRIS STATUS modify command syntax

CODE

/F ziris,APPL=STATUS

Sample response:

Sample output from STATUS modify command

CODE

RESPONSE=CPAC      BPXM023I (SMFRAPI) ZIRIS will accept the STOP(P) and
RESPONSE=Modify(F) commands                                            
RESPONSE=CPAC      BPXM023I (SMFRAPI)                                  
RESPONSE=CPAC      ZIRIS STATUS Jul 18, 2018, 12:01:34 PM              
RESPONSE=CPAC      TCP Connection:  active to /172.25.999.999:9999     
RESPONSE=CPAC      Number of Listeners: 1                              
RESPONSE=CPAC      Listener 1 streaming from IFASMF.INMEM.SMFDB2