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Which operational state of an XtremIO X2 NVRAM card will trigger SuperCap discharging?
Correct Answer: A
The SuperCapacitor (SuperCap) in an XtremIO X2 NVRAM card is designed to provide power to the card in the event of a power failure.When there is a power failure, the SuperCap discharges to maintain power to the NVRAM card long enough to ensure that all data in transit is written to flash storage, preventing data loss1. Here's the sequence of events during a power failure: * Power Failure Detected: The system detects a loss of power to the NVRAM card. * SuperCap Discharge: The SuperCap begins to discharge, providing backup power to the NVRAM card. * Data Write: The NVRAM card uses the power from the SuperCap to write any data in transit to the SSDs in the storage array. * Data Secured: Once the data is safely written to the SSDs, the NVRAM card can safely shut down without risking data loss. The SuperCap is a critical component that ensures data integrity during unexpected power interruptions. It is not used during normal operation (OB), after data is secured (OC), or when power is restored (OD).Its primary function is to protect data during power failures (OA)1.
