## Tasks

### Installing Your Cluster

SunPlexTM Manager installs the SunTM Cluster 3.1 software and associated components on a specific set of machines that run the SolarisTM operating environment. If prerequisite hardware criteria are met, SunPlex Manager performs the following functions:

- Installs Solaris Volume Manager, formerly known as Solstice DiskSuiteTM
- Configures metasets for Solaris Volume Manager
- Mounts those metasets as global cluster file systems
- Adds quorum devices to the cluster
- Creates public network adapter failover groups
- Configures the failover NFS data service
- Configures the scalable Apache data service

To install Sun Cluster 3.1 on a new cluster by using SunPlex Manager, refer to the Sun Cluster 3.1 Installation Guide.

### Installing and Configuring Your Highly Available Applications (Data Services)

You can install and configure your highly available applications (such as web servers and databases) by using a graphical user interface (GUI). The GUI simplifies the installation by prompting you for information specific to your system and providing you with a basic configuration for your application.

SunPlex Manager provides tools that simplify the installation and configuration of software on a cluster, Examples of software that you can install with SunPlex Manager includes the SunTM Open Net Environment (Sun ONE) Web Server and an Oracle® database.

With a minimal amount of user input through web-based wizards, SunPlex Manager

- Installs the application binaries on all nodes of the cluster
- Edits the application's configuration files
- Configures the cluster to run the application
- Starts the application in the cluster framework

If you require more tailoring, tuning, and control over the installation and configuration, enter commands on the command line.

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### Using SunPlex Manager

You can use SunPlex Manager to administer (add, modify, and remove) the major components that a Sun Cluster 3.1 cluster contains:

- Resources and resource groups
- Global devices (metasets for Solaris Volume Manager and, if your configuration includes VERITAS Volume Manager (VxVM), disk groups for VERITAS Volume Manager)
- Quorum devices
- Public network adapter failover groups
- Components for private cluster interconnect

SunPlex Manager also provides basic node information, such as uptime, a view of the running processes, and a view of the system logs. If you need command-line access to one or more nodes of the cluster, a link is provided for launching a
telnet
window.

#### Cautions and Features

- The web browser is your link to the cluster. Use the Cancel button to cancel a task. If you use the web browser's Stop or Back button, you might disconnect the web browser from the task being performed. If a Cancel button is not available, undo your action by performing the opposite task.

  For example, if you take a global device offline and then you want to put that global device online, from the Action Menu, choose Bring Online to bring the global device back online.

- Your session remains active for as long as you display a SunPlex Manager window. If you fail to log out and close the SunPlex Manager window, SunPlex Manager automatically logs you out after 30 minutes. In this case, SunPlex Manager automatically logs you out whether or not other web browser windows are open.

  To ensure maximum security, log out when you are finished using SunPlex Manager.

- You can access your cluster and complete tasks even when someone else is simultaneously administering the cluster through the command-line interface.

- SunPlex Manager displays the commands that it executes after a task completes. This feature enables you to learn Sun Cluster commands and use the commands to write automated scripts.

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### Conventions of SunPlex Manager

#### Icons That Highlight Components

SunPlex Manager uses the following icons to highlight components that you monitor.

Icon | Component Name
--- | ---
| Cluster
| Nodes
| IPMP Groups
| Processes
| System Logs
| Resource Groups
| Resources
| Transports Nodes/Adapters
| Transports Adapters
| Transports Cables
| Transports Junctions
| Transports Paths
| Global Devices
| Quorum

#### Conventions That Direct You to Important Information

SunPlex Manager also uses the following icons and text to direct you to important information.

Convention | Definition
--- | ---
| SunPlex Manager encountered an error while running the command.
| SunPlex Manager is about to perform an action that will significantly alter the cluster's configuration.
| Note this information to make an informed decision about the task you are performing.
AaBbCc123 | Commands that are run by SunPlex Manager. Running /usr/cluster/bin/scswitch -F -g foo
| A critical alarm condition has occurred that seriously impairs service and requires immediate correction.
| A major alarm condition has occurred, impairing service, but not seriously.
| A minor alarm condition has occurred that does not currently impair service, but requires that you correct the condition before the condition becomes more severe.
Online | The component is online.
Offline | The component is offline.
Enabled | The component is in an enabled state.
Disabled | The component is in a disabled state.

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### Learn about the SunPlex Manager workspace.