The table below summarizes how long it can take to recover from various types of appliance, server and grid failures. The times specified below are estimates.
|
Recovery Scenario |
Recovery Time |
|
Restart of an appliance due to an appliance failure (crash) |
appliances are restarted right away |
|
Restart of appliances on another server due to a server failure |
appliances are restarted within 4 minutes |
|
Auto-restart of the grid controller VM due to a grid controller VM failure |
within 5 minutes for the grid controller to become operational |
|
Auto-restart of the grid controller VM due to the grid controller becoming unresponsive |
within 10 minutes for the grid controller to become operational |
|
Auto-restart of the grid controller VM due to a failure of the primary server |
within 5 minutes for the grid controller to become operational. The recovery controller will start in 1-3 minutes and the controller will become completely operational in 11-13 minutes. |
|
Restart of the grid controller when specifying a new primary server for a grid (whether the grid is operational or unavailable) |
within 5 minutes for the grid controller to become operational |
Note: CA AppLogic requires approximately 3 minutes to detect that a server has gone down, either from a physical server or a software failure.
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