Patent ID: 11934664
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A storage device, comprising:
a memory;
a storage device controller coupled to the memory;
a storage device power management circuit coupled to the memory and the controller; and
a rechargeable battery coupled to the storage device power management circuit;
wherein the storage device controller is configured to receive power supplied by a host device or a redundant array of independent disks (RAID) controller, to receive a notification of a loss in the power supplied by the host device or the RAID controller to another storage device, and to monitor a charge of the rechargeable battery in response to the notification,
wherein the storage device controller is further configured to detect another loss in the power supplied by the host device or the RAID controller, to send a message to the host device or the RAID controller indicating the another loss in the power and indicating a current status of the storage device, and to receive rationed power from the host device or the RAID controller in response to the message, wherein an amount of the rationed power is based on the current status of the storage device, a program data rate of the storage device, and a size of data from the host device or the RAID controller to be written to the memory.