Sun Cluster Data Service for MaxDB Guide for Solaris OS

Planning the Sun Cluster HA for MaxDB Installation and Configuration

This section contains the information that you need to plan your Sun Cluster HA for MaxDB installation and configuration.


Note –

Before you begin, consult your MaxDB documentation for configuration restrictions and requirements that are not imposed by Sun Cluster software. For information about restrictions that the Sun Cluster software imposes, see the Sun Cluster documentation.


Configuration Requirements

The configuration requirements in this section apply only to Sun Cluster HA for MaxDB.


Caution – Caution –

If your data service configuration does not conform to these requirements, the data service configuration might not be supported.


For requirements that apply to all data services, see Configuration Guidelines for Sun Cluster Data Services in Sun Cluster Data Services Planning and Administration Guide for Solaris OS.

MaxDB Software Version Requirements

Use MaxDB version 7.4 or compatible versions.

Sun Cluster HA for MaxDB Configuration Requirements

Configure Sun Cluster HA for MaxDB as a failover data service. You cannot configure Sun Cluster HA for MaxDB as a scalable data service. For more information, see the following sections:

SAP xserver Configuration Requirements

To enable client applications to access Sun Cluster HA for MaxDB, you must use SAP xserver. Configure SAP xserver as a scalable data service. Do not configure SAP xserver as a failover data service.

Configure SAP xserver so that SAP xserver starts on all nodes to which the MaxDB resource can fail over. To implement this configuration, ensure that the node list of the SAP xserver resource group contains all nodes that are in the node list of the MaxDB resource group. For more information, see How to Register and Configure an SAP xserver Resource.

Supported Configurations of This Data Service

The Sun Cluster HA for MaxDB data service supports configurations that conform to the requirements in Configuration Requirements.

If you plan to use MaxDB with other highly available SAP applications, you must also configure the Sun Cluster data services for those applications. For more information, see the following table.

SAP Application 

Sun Cluster Data Service 

Associated Document 

SAP R/3 

Sun Cluster HA for SAP 

Sun Cluster Data Service for SAP Guide for Solaris OS

SAP liveCache 

Sun Cluster HA for SAP liveCache 

Sun Cluster Data Service for SAP liveCache Guide for Solaris OS

SAP Web Application Server 

Sun Cluster HA for SAP Web Application Server 

Sun Cluster Data Service for SAP Web Application Server Guide for Solaris OS

The examples that follow show these supported configurations of Sun Cluster HA for MaxDB:


Note –

Sun Cluster HA for MaxDB might support additional configurations. However, you must contact your Sun service provider for information about additional configurations.



Example 1 Two-Node Configuration

This example shows a two-node configuration in which a client application accesses the MaxDB resource through the SAP xserver resource. The characteristics of this configuration are as follows:

Illustration: The preceding context describes the graphic.

Example 2 Four-Node Configuration With SAP R/3

This example shows a four-node configuration in which MaxDB is used with SAP R/3. This configuration uses multiple Advanced Planner & Optimizer (APO) application servers. The characteristics of this configuration are as follows:

Illustration: The preceding context describes the graphic.

Example 3 Four-Node Configuration With SAP R/3 and SAP liveCache

This example shows a four-node configuration in which MaxDB is used with SAP R/3 and SAP liveCache. This configuration uses multiple APO application servers. The characteristics of this configuration are as follows:

Illustration: The preceding context describes the graphic.

Configuration Considerations

The configuration considerations in the subsections that follow affect the installation and configuration of Sun Cluster HA for MaxDB.

Device Group for the MaxDB Application

Ensure that you create a device group for the MaxDB application as follows:

Dependencies of the MaxDB Application on SAP xserver

Configure MaxDB so that MaxDB starts only on a node where SAP xserver is running. To implement this configuration, configure resources and resource groups as follows:

For more information, see Registering and Configuring Sun Cluster HA for MaxDB.

Administration of SAP xserver by a User Other Than Root

You might be required to administer SAP xserver as a user other than root. In this situation, you must create and define that user as follows:

Configuration Planning Questions

Answer the questions in this section to plan the installation and configuration of Sun Cluster HA for MaxDB. Write the answers to these questions in the space that is provided on the data service worksheets in Appendix D, Data Service Configuration Worksheets and Examples, in Sun Cluster Data Services Planning and Administration Guide for Solaris OS.