HP Instant Capacity User's Guide for versions B.07.x

Special Considerations
Dynamic Processor Resilience (DPR)
Appendix A152
Dynamic Processor Resilience (DPR)
The LPMC monitor, within the Support Tools Manager (STM)
diagnostics, generates Information events for all cache errors that are
detected. After three errors (Threshold) have been detected on a
processor in 1440 minutes, or a 24-hour period of time (Period), the
monitor deactivates that particular processor, marks it for
deconfiguration on the next system reboot, and generates a SERIOUS
event. After the failed processor is deactivated, the LPMC monitor
attempts to activate one of the inactive Instant Capacity processors, if
any are available. This method ensures the processing power of the
system is unchanged.
A default value of “three” is assigned to Threshold, except for the
PCX-W+ family of processors, which has a value of “five” assigned. The
default value assigned to a Period is 1440 minutes, or 24 hours, in all
possible processor configurations.
An inactive processor under warranty or support automatically replaces
a failed processor. HP also services and replaces any failed processor.
Monarch
Processors
See “Failed Monarch Processors” on page 71 for details on replacing
failed monarch processors.