3.2.1 What to check before installing and setting up PFM - Agent for Enterprise Applications in Linux

(a)  Setting IP addresses

You must set up the environment for a PFM - Agent host in such a manner that IP addresses can be determined from the host name. PFM - Agent can run only in an environment in which IP addresses can be resolved.

For the monitoring host name (name used as the host name of the Performance Management system), you can use the real host name or an alias name.

• When the real host name is used as the monitoring host name:

  In a Linux system, set the environment in such a manner that the IP address can be resolved by the host name that is obtained by the uname -n command. Note that in a Linux system, you can also use the hostname command to obtain the host name.

• When an alias name is used as the monitoring host name:

  Set the environment in such a manner that the IP address can be resolved by this alias name.

For details about the monitoring host name setting, see the chapter that describes installation and setup in the JP1/Performance Management Planning and Configuration Guide.

To set host names and IP addresses, use one of the following methods:

• Performance Management's host information file (jpchosts file)

• hosts file

• DNS

Notes

• The IP addresses specified in the jpchosts file cannot be used to resolve IP addresses for the name of hosts that are monitored by PFM - Agent (such as a host name specified in the ASHOST item).

• Performance Management can be run in a DNS environment, but it does not support fully qualified domain names (FQDNs). When you specify a monitoring host name, do not include the domain name.

• If you use Performance Management in multiple LAN environments, use the jpchosts file to set IP addresses. For details, see the chapter that describes installation and setup in the JP1/Performance Management Planning and Configuration Guide.

• Performance Management does not run on a host where dynamic IP addresses are assigned by DHCP. Set fixed IP addresses for all hosts on which Performance Management is to be installed.

(b) Setting port numbers

The port numbers listed in the table below are assigned by default to the Performance Management program services. An available port number is assigned automatically to any other service or program each time such a service is started. You must use fixed port numbers when Performance Management is used in a firewall environment. For details about how to fix port numbers, see the chapter that describes installation and setup in the JP1/Performance Management Planning and Configuration Guide.

Table 3‒7: Default port numbers used by the Performance Management program services (for Linux)

Service description	Service name	Parameter	Port number	Remarks
Service configuration information management function	Name Server	jp1pcnsvr	22285	Port number used by PFM - Manager's Name Server service. This port number is set at all hosts of Performance Management.
Service status management function	Status Server	jp1pcstatsvr	22350	Port number used by the Status Server service of PFM - Manager and PFM - Base. This port number is set at the host where PFM - Manager and PFM - Base are installed.
JP1/SLM linkage function	JP1/ITSLM	--	20905	Default port number set in JP1/SLM

Legend:

--: Not applicable

You should set up your network in such a manner that communication can be established with the port numbers used by these Performance Management program services.

(a) Programs that can be monitored

PFM - Agent for Enterprise Applications can monitor the following program:

• SAP NetWeaver^#1#2

This program must be installed on the same host as PFM - Agent for Enterprise Applications.

#1

This program must be installed on only host that contains a central instance with dialog service (primary application server instance) or a dialog instance (additional application server instance).

#2

For details about the versions of SAP NetWeaver, see the Release Notes.

(b) Performance Management programs

PFM - Agent and PFM - Base must be installed on the monitoring agent. PFM - Base is a prerequisite program for PFM - Agent. You only need one PFM - Base, even when multiple PFM - Agents and PFM - RMs are installed on the same host.

Note that if you install PFM - Manager and PFM - Agent on the same host, PFM - Base is not required.

If you install PFM - Manager or PFM - Base on a PFM - Agent host, make sure that you install version 12-00. For details about the relationship between hosts on which Performance Management programs are installed and their versions, see the chapter that describes compatibility of versions in a system configuration in the JP1/Performance Management Planning and Configuration Guide.

To monitor SAP system operation using PFM - Agent for Enterprise Applications, you need PFM - Manager and PFM - Web Console.