Method and Device for Distributing Holdup Energy to Memory Arrays

摘要

The various embodiments described herein include methods and/or devices used to protect data in a storage device. In one aspect, a method includes performing a power fail operation on a first section of the storage device, the first section of the storage device comprising one or more memory group modules. The power fail operation includes supplying power, via one or more energy storage devices, to the one or more memory group modules, where each memory group module includes a respective memory group module controller. The power fail operation also includes supplying power, via an additional energy storage device, to a storage device controller, the storage device controller corresponding to the first section of the storage device. The additional energy storage device is distinct from the one or more energy storage devices and each are distinct from a power source used during normal operation of the storage device.

主权项

1. A storage device, comprising:
an interface for coupling the storage device to a host system; one or more memory group modules, each memory group module of the one or more memory group modules including a respective memory controller and non-volatile memory, wherein each respective memory controller is configured to control a plurality of operations within a corresponding memory group module; a storage device controller coupled to the one or more memory group modules, the storage device controller configured to control a plurality of data transfer operations; and one or more energy storage devices, each of the one or more energy storage devices for supplying power to one or more corresponding memory group modules during a power fail operation; wherein the storage device is configured to couple each energy storage device of the one or more energy storage devices to one or more corresponding memory group modules without coupling the energy storage device to the storage device controller during the power fail operation.