ETERNUS SF Disk Space Monitor User's Guide - Microsoft(R) Windows Server(TM) 2003/Solaris(TM) Operating System/Linux - 13.0

Chapter 12 Configuring Communication Environment with the Pull Method

This product usually uses the communication mode in which data is "pushed" from Agents to the Manager. However, communications using the Push method are not always appropriate, such as with Internet environments where the managed servers are in the DMZ and communications options are limited. In such situations, configure communication environment using the Pull method.

Pull type communications are initiated by the Manager, which polls the Agents and pulls the results from them. These communications use the HTTP protocol and so require an HTTP communications environment on the Agents.

The communication mode is set up according to the results of the prompts when the product is installed. For Push type communications, no further definitions are required. However, if Pull type communications are selected, follow the setup procedure explained in this chapter.

• The communications mode ("push" or "pull") is selected at installation time.
• For push communications, Agents send data autonomously, and so no particular definitions need to be made. For pull communications, definitions for the Agents from which data will be "pulled" must be defined on the Manger.
• Note that push and pull communications cannot be used together on the same Agent.
• This chapter also explains how to switch between communication modes.

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12.1 HTTP Pull Operations

12.2 Switching between Push and Pull Communication Modes