Planning the implementation

To successfully implement high availability, you must first be aware of the needs of your organization in terms of system availability. You must also review the possible component configuration options and the additional products that can introduce high availability to your system.

A highly available system can be configured by installing a number of different middleware products, in various combinations. The approach that you use to implement the middleware components can vary: You can install and configure the middleware components for high availability before you install your product, or you can configure an existing environment for high availability after the installation.

There are additional hardware and software costs that must be considered when you are planning your implementation. Contact your sales and licensing team to determine the cost of implementing a highly available system

Before you configure your environment, it is important to identify the components that are critical to your system operations. However, to eliminate any potential point of failure all middleware components must be configured for high availability. System performance and potential scalability requirements of your environment are also important considerations. These factors can help you to determine the number of nodes that are required to run your highly available system.

It is also important to review internal change management processes in your organization, before you implement a highly available system. With suitable maintenance planning and coordination of your component support teams, you can minimize the impact of human error on system availability. By improving and implementing change management procedures, system downtime can be reduced and even eliminated.

To help you decide on a suitable high availability solution, see the information about your individual components and the high availability features they offer.



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