HP OpenVMS Availability Manager User's Guide

HP OpenVMS Availability Manager User's Guide

Order Number: BA554-90001

July 2006

This guide explains how to use HP Availability Manager software to detect and correct system availability problems.

Revision/Update Information: This guide supersedes the HP OpenVMS Availability Manager User's Guide, Version 2.5.

Operating System:
Data Analyzer:
Windows 2000 SP 4 or higher;
Windows XP SP 2;
OpenVMS Alpha Versions 8.2 and 8.3;
OpenVMS I64 Versions 8.2-1 and 8.3

Data Collector:
OpenVMS VAX Version 6.2 and 7.3;
OpenVMS Alpha Versions 8.2 and 8.3;
OpenVMS I64 Versions 8.2-1 and 8.3

Software Version: HP Availability Manager Version 2.6

Hewlett-Packard Company Palo Alto, California

© 2006 Hewlett-Packard Development Company, L.P.

Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor's standard commercial license.

The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

Intel and Itanium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.

Microsoft and Windows are U.S. registered trademarks of Microsoft Corporation.

Javatm is a US trademark of Sun Microsystems, Inc.

Printed in the US


Contents Index


Intended Audience

This guide is intended for system managers who install and use HP Availability Manager software. It is assumed that the system managers who use this product are familiar with Microsoft Windows terms and functions.


The term Windows as it is used in this manual refers to either Windows 2000 or Windows XP but not to any other Windows product.

Document Structure

This guide contains the following chapters and appendixes:

Related Documents

The following manuals provide additional information:

For additional information about HP OpenVMS products and services, visit the following World Wide Web address:


Reader's Comments

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Chapter 1

This chapter answers the following questions:

1.1 What Is the HP Availability Manager?

The HP Availability Manager is a system management tool that allows you to monitor, from an OpenVMS or Windows node, one or more OpenVMS nodes on an extended local area network (LAN).

The Availability Manager helps system managers and analysts target a specific node or process for detailed analysis. This tool collects system and process data from multiple OpenVMS nodes simultaneously, analyzes the data, and displays the output using a graphical user interface (GUI).

Features and Benefits

The Availability Manager offers many features that can help system managers improve the availability, accessibility, and performance of OpenVMS nodes and clusters.
Feature Description
Immediate notification of problems Based on its analysis of data, the Availability Manager notifies you immediately if any node you are monitoring is experiencing a performance problem, especially one that affects the node's accessibility to users. At a glance, you can see whether a problem is a persistent one that warrants further investigation and correction.
Centralized management Provides centralized management of remote nodes within an extended local area network (LAN).
Intuitive interface Provides an easy-to-learn and easy-to-use graphical user interface (GUI). An earlier version of the tool, DECamds, uses a Motif GUI to display information about OpenVMS nodes. The Availability Manager uses a Java GUI to display information about OpenVMS nodes on an OpenVMS or a Windows node.
Correction capability Allows real-time intervention, including adjustment of node and process parameters, even when remote nodes are hung.
Uses its own protocol An important advantage of the Availability Manager is that it uses its own network protocol. Unlike most performance monitors, the Availability Manager does not rely on TCP/IP or any other standard protocol. Therefore, even if a standard protocol is unavailable, the Availability Manager can continue to operate.
Customization Using a wide range of customization options, you can customize the Availability Manager to meet the requirements of your particular site. For example, you can change the severity levels of the events that are displayed and escalate their importance.
Scalability Makes it easier to monitor multiple OpenVMS nodes.

Figure 1-1 is an example of the initial System Overview window of the Availability Manager.

Figure 1-1 System Overview Window

The System Overview window is divided into the following sections:

1.2 How Does the Availability Manager Work?

The Availability Manager uses two types of nodes to monitor systems:

The Data Analyzer and Data Collector nodes communicate over an extended LAN using an IEEE 802.3 Extended Packet format protocol. Once a connection is established, the Data Analyzer instructs the Data Collector to gather specific system and process data.

Although you can run the Data Analyzer as a member of a monitored cluster, it is typically run on a system that is not a member of a monitored cluster. In this way, the Data Analyzer will not hang if the cluster hangs.

Only one Data Analyzer at a time should be running on each node; however, more than one can be running in the LAN at any given time.

Figure 1-2 shows a possible configuration of Data Analyzer and Data Collector nodes.

Figure 1-2 Availability Manager Node Configuration

In Figure 1-2, the Data Analyzer can monitor nodes A, B, and C across the network. The password on node D does not match the password of the Data Analyzer; therefore, the Data Analyzer cannot monitor node D.

For information about password security, see Section 1.3.

Requesting and Receiving Information

After installing the Availability Manager software, you can begin to request information from one or more Data Collector nodes.

Requesting and receiving information requires the Availability Manager to perform a number of steps, which are shown in Figure 1-3 and explained after the figure.

Figure 1-3 Requesting and Receiving Information

The following steps correspond to the numbers in Figure 1-3.

  1. The GUI communicates users' requests for data to the driver on the Data Analyzer node:
  2. The driver on the Data Analyzer sends users' requests across the network to the driver on the Data Collector node.
  3. The driver on the Data Collector transmits the requested information over the network to the driver on the Data Analyzer node.
  4. The driver on the Data Analyzer node passes the requested information to the GUI, which displays the data.

In step 4, the Availability Manager also checks the data for any events that should be posted. The following section explains in more detail how data analysis and event detection work.


More than one Windows or OpenVMS Data Analyzer node can collect data from the same Data Collector node.

Communicating Through a Private LAN Transport

The Availability Manager protocol is based on the 802.3 Extended Packet Format (also known as SNAP). The IEEE Availability Manager protocol values are as follows:

        Protocol ID:        08-00-2B-80-48 
        Multicast Address:  09-00-2B-02-01-09 

If your routers filter protocols in your network, add these values to your network protocols so that the private transport is propagated over the routers.

1.3 How Does the Availability Manager Maintain Security?

The Availability Manager uses passwords to maintain security. Passwords are eight alphanumeric characters long. The Data Analyzer stores passwords in its customization file. On OpenVMS Data Collector nodes, passwords are part of a three-part security code called a security triplet.

The following sections explain these security methods further.

1.3.1 Data Analyzer Password Security

For monitoring to take place, the password on a Data Analyzer node must match the password section of the security triplet on each OpenVMS Data Collector node. OpenVMS Data Collectors also impose other security measures, which are explained in Section 1.3.2.

Figure 1-4 illustrates how you can use passwords to limit access to node information.

Figure 1-4 Availability Manager Password Matching

As shown in Figure 1-4, the Testing Department's Data Analyzer, whose password is HOMERUNS, can access only OpenVMS Data Collector nodes with the HOMERUNS password as part of their security triplets. The same is true of the Accounting Department's Data Analyzer, whose password is BATTERUP; it can access only OpenVMS Data Collector nodes with the BATTERUP password as part of their security triplets.

The Availability Manager sets a default password when you install the Data Analyzer. To change that password, you must use the OpenVMS Security Customization page (see Figure 7-21), which is explained in Chapter 7.

1.3.2 OpenVMS Data Collector Security

OpenVMS Data Collector nodes have the following security features:

1.3.3 Changing Security Triplets on OpenVMS Data Collector Nodes

To change security triplets on an OpenVMS Data Collector node, you must edit the AMDS$DRIVER_ACCESS.DAT file, which is installed on all Data Collector nodes. The following sections explain what a security triplet is, how the Availability Manager uses it, and how to change it.

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