Coupling facility mode setting
The following table summarizes the relationship between the coupling facility MODE setting, and the resulting conditions you can expect if utility power fails at your site.
| CF MODE setting | Local UPS installed | Results on Utility Power Failure |
|---|---|---|
| VOLATILE | Yes | Ride out utility power failure on UPS. (Setting the mode to VOLATILE here would be a configuration error because there is local UPS to provide nonvolatility.) |
| VOLATILE | No | Machine down unless alternate floor level UPS provided. |
| NONVOLATILE | Yes | Ride out utility power failure on UPS. Note: This is the recommended setting when
providing floor-wide UPS backup.
|
| NONVOLATILE | No | Machine down unless alternate floor level UPS provided. |
| Note: Reflects the real-time status
of the power (volatile or nonvolatile).
|
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