EV Observe - Configure IBM AS/400 Monitoring Prerequisites

Last modified on 2022/08/11 19:14

To use services to monitor IBM AS/400 (Application System/400) servers, specific prerequisites must first be met.

  • You configure these prerequisites once only for each Box.
  • This is done in two steps:
    • Configure the SNMP protocol on the AS/400 host and on the Box
    • Configure the AS/400 host and the Box for the telnet collect and for using RPG and Java JTOpen/TCP APIs

Notes

  • You must have access rights to the IBM AS/400 server to be able to configure the monitoring prerequisites.
  • The configuration for the telnet collect and for using RPG and Java JTOpen/TCP APIs depends on the IBM-AS400 service templates. The procedure explains the configuration to be performed based on the templates used.

Procedure: How to configure IBM AS/400 monitoring prerequisites

Step 1: Enable communication between the AS/400 and the Box

1. Install option 12 Host Servers on the AS/400.

2. Enable the option.
 

Step 2: Configure the SNMP protocol

Step 2.a: Configure the SNMP on the AS/400 host

1. Open port UDP/161 on the Box for the AS/400.

2. Open all UDP ports on the AS/400 for the Box.

3. Configure the SNMP service.

  • Log in to the server console.
  • Run the command below in the configuration window.

CFGTCP

    SNMP configuration.png

  • Select option 20 (Configure TCP/IP Applications).
  • Select option 1 (SNMP).
  • Select option 1 (Change SNMP attributes).
  • Select option 2 (Work with Communities for SNMP).
    The SNMP service will start.

4. Check that the SNMP service is automatically started.

  • Run the command below in the configuration window.

CFGTCP

  • Select option 20 (Configure TCP/IP Applications).
  • Select option 1 (SNMP).
  • Select option 1 (Change SNMP attributes).
  • Run the command below.

param AUTOSTART *YES

Step 2.b: Configure the SNMP protocol on the Box

1. Open all UDP ports for traffic from the AS/400.

2. Search for the name of the Box local network interface.

  • Log in via SSH on the Box.
  • Run the command below.

ip a

3. Modify the iptables.sh configuration file.

  • Open the file called /etc/init.d/iptables.sh.
  • Add the rows below and replace <Box_local_interface_name> with the name of the Box local network interface.

## Accept incoming UDP connections to receive AS400 SNMP responses
iptables -A INPUT -p udp -i <Box_local_interface_name> -s <@IP LAN AS/400> -j ACCEPT

  • Run the command below to reload the Box firewall configuration.

/etc/init.d/iptables.sh

4. Check that the configuration works correctly by running a discovery of the AS/400 host from the Box.

Open url.png See the detailed procedure
 

Step 3: Define the configuration for the telnet collect and for using RPG and Java JTOpen/TCP APIs

1. Open the following TCP communication ports on the Box for the AS/400 host: 8470, 8473, 8475, 8476, 449.

2. Define AS/400 user rights depending on the service template used.

Note

  • The minimum rights of the AS/400 user must be identical to those of a local AS/400 user accessing data collected by the service template. The rights therefore depend on the service template used.
  • You can apply the ready-to-use user configuration below.
    • User class: *SYSOPR

NAGIOS user profile Display sign-on information *NO ==> – CHGUSRPRF USRPRF(NAGIOS) DSPSGNINF(*NO)

3. Configure the telnet collect on the Web app if you are using the service templates below.

Note: Telnet enables the direct running of commands on the AS/400 and the syntax analysis of results on the Box.

List of service templates

  • IBM-AS400-Cpu
  • IBM-AS400-Disk
  • IBM-AS400-JobStatus
  • IBM-AS400-StatusDisk

 

  • Go to the Web app.
  • Select Configuration > Services > List in the menu.
  • Select the service.
  • Enter the language of the AS/400 user in the OS language field.
             Telnet user.png

4. Grant access to the JAVA API on the AS/400 host if you are using the service templates below.

List of service templates

  • IBM-AS400-i5_ALL_JobStatus_IN_Subsystem
  • IBM-AS400-i5_ASPSize
  • IBM-AS400-i5_FonctionStatus_JOB_IN_Subsystem
  • IBM-AS400-i5_IJS
  • IBM-AS400-i5_JobStatus
  • IBM-AS400-i5_JobStatus_IN_Subsystem
  • IBM-AS400-i5_MessageQueue
  • IBM-AS400-i5_SubsystemStatus

5. Install a monitoring library (RPG) on the AS/400 host if you are using the service templates below.

List of service templates

  • IBM-AS400-i5_ASPPercent
  • IBM-AS400-i5_CpuLoad
  • IBM-AS400-i5_DBUse
  • IBM-AS400-i5_DistributionFileStatus
  • IBM-AS400-i5_HostStatus
  • IBM-AS400-i5_JOBQ
  • IBM-AS400-i5_resourceTypeStatus

 

Note: Contact the EasyVista Support team to obtain the relevant library information.

  • Download the two SAVF files on the AS/400.
  • Run the command below for each file to install the library.

RSTLIB

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