US Patent No. 10,893,626

INFORMATION HANDLING SYSTEM HAVING SYNCHRONIZED POWER LOSS DETECTION ARMED STATE


Patent No. 10,893,626
Issue Date January 12, 2021
Title Information Handling System Having Synchronized Power Loss Detection Armed State
Inventorship Aaron M. Rhinehart, Georgetown, TX (US)
Dan Rao, Austin, TX (US)
Binay A. Kuruvila, Cedar Park, TX (US)
Assignee Dell Products, L.P., Round Rock, TX (US)

Claim of US Patent No. 10,893,626

1. An information handling system comprising:a first chassis management controller including first monitoring circuitry to monitor a plurality of power supply units, and based on the monitoring of the power supply units, to provide a first signal;
a second chassis management controller including second monitoring circuitry to monitor the power supply units, and based on the monitoring of the power supply units, to provide a second signal; and
a server including status circuitry to communicate with the first and second chassis management controllers, during a boot operation of the server, the status circuitry to: detect the first signal from the first chassis management controller; detect the second signal from the second chassis management controller; determine whether a server persistent memory criteria has been met based on the first and second signals; and in response to the server persistent memory criteria being met, arm the server in a persistent memory mode, otherwise set persistent memory of the server in a read only mode.