Which XtremlO X2 hardware component provides a backup power source to save journaling data during an unplanned emergency shutdown?

In the event of an unplanned emergency shutdown, the XtremIO X2 hardware component that

provides a backup power source to save journaling data is the SuperCapacitor (SuperCap). The

SuperCap is designed to maintain power to the system long enough to ensure that all in-flight writes

are committed to non-volatile memory, preserving data integrity. Unlike a battery backup unit (BBU)

which may provide power for a longer duration, the SuperCap is specifically designed for short-term

power retention to protect data during transient power interruptions1.

Reference:

The User Guide for XtremIO, which includes power down and power up procedures, would typically

detail the role of the SuperCap in emergency shutdown scenarios1.

Additional information on the hardware components and their functions can be found in the

Reference Architecture Guide for Dell EMC XtremIO2.

=========================