Double-Take Availability for AIX expands on the replication technologies and continuous data protection capabilities of Double-Take RecoverNow for AIX by including cluster-health monitoring; lights-out notifications and customisation; and application integration.
Continuous, 24-hour surveillance of the cluster topology via LAN and WAN heartbeat monitoring technology, and of storage and application resources via resource-specific monitoring methods, allows you to take timely recovery actions.
For example, if a production system or one of its critical resources fails, you can quickly restore availability by transferring the application’s resources to the secondary system. When Double-Take Availability’s heartbeat monitoring technology detects a failure, it moves applications from the failed node to the operational node, keeping services available.
You can configure Double-Take Availability to perform all failover activities – including release of storage resources, IP address switching, re-establishment of continuous data protection replication, file system mounts, and application switching – automatically, or in a prompted, but automated manner, depending on business requirements.
Customisable user exit methods afford improved levels of lights-out operations – helping you to meet service level agreements – no matter what time of day a failure condition is detected.
The integration of applications, along with the service IP and storage resources those applications depend upon, ensures that all components of a business service, including storage, network, database and application resources, are made available on the most suitable server to serve business users.