First page Back Continue Last page Summary Graphic
Typical HA Cluster Lifecycle
- A single instance of the application runs on one cluster member at any point in time.
- Cluster members monitor each others health and take over running the application in the event of failure.
Parallel HA Clusters
- Application runs simultaneously on all cluster members for performance boost; requires application customization.
Single System Image
- Appears to be a single system. (Unified PID space, filesystem namespace). Typically requires no application customization.
The lean and nimble takeover.