It is unnecessary to power the server off and on to reset the server because a reset maintains host power but causes the processors to reinitialize. During the reset process, the server retains some register information. This is important in case of a system host panic, as error information might be available upon system recovery.
Caution - Possible Data Loss. Resetting the server causes any unsaved data on the server to be lost.
Note that a pending BIOS upgrade exists when both of these conditions are true: You updated the BIOS and SP firmware using Oracle ILOM. During the Oracle ILOM firmware update process, you selected Delay BIOS Upgrade.