Planning the Sun Cluster HA for Sun Java System Application Server Installation and Configuration

This section contains the information that you need to plan the installation and configuration of the Sun Cluster HA for Sun Java System Application Server.

Configuration Restrictions

Consider the following restrictions and requirements before you start your installation.

• Store static files and data on the local file system of each cluster node. Dynamic data should reside on the cluster file system so that you can view or update the data from any cluster node. The Sun Java System Application Server binaries and configuration files must be highly available and accessible to application server instances that are running on all nodes.

• Do not use the Sun Java System Application Server command-line or GUI administrative tools to start or stop the Sun Java System Application Server instances while application instances are running. Only use these administrative tools while application instances are running if your configuration meets the following conditions.

  • The Sun Java System Application Server is configured as a failover service mastered by one node at a time.

  • All of the application server instances of a domain, including the administrative server, are configured in one resource group.

• If you plan to use the Sun Java System Application Server as a service mastered on multiple nodes, you must set the HTTP and IIOP listeners to listen to the appropriate network resource. This setting is necessary because, by default, the Sun Java System Application Server behavior binds to all IP addresses on the node.

• If you use the Solstice DiskSuite^TM/Solaris Volume Manager, configure the Sun Java System Application Server software to use UNIX file system (UFS) logging or raw-mirrored metadevices. See the Solstice DiskSuite/Solaris Volume Manager documentation for information on how to configure raw-mirrored metadevices.

• You must set up the hostnames in your name services before you begin the Sun Java System Application Server installation. You must specify a network resource (IP address) that can fail over between nodes.

• You must not remove or relocate any of the installed files or directories that the Sun Java System Application Server installation places on the cluster file system. For example, do not relocate any of the binaries that are installed with the Sun Java System Application Server software.

• You must install the binaries on the local disks.

• You must configure the network resources that clients use to access the data service and bring the logical hostnames online.

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  Note –

  If you run the Sun Java System Application Server with another application server that uses the same network resources, configure the servers to listen on different ports. Configuring the listeners on different ports prevents a port conflict between the two servers.

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Configuration Planning Questions

Use the questions in this section to plan the installation and configuration of Sun Cluster HA for Sun Java System Application Server.

• Will you run Sun Cluster HA for Sun Java System Application Server as a failover data service or as a service mastered on multiple nodes at the same time?

• What resource groups will you use for network addresses, application resources, and the dependencies between network addresses and application resources?

• What is the logical hostname that clients use to access the data service?

• Where will the system configuration files reside?