Power control method for storage device and data storage system

Abstract

A power control method for a storage device and a data storage system are disclosed. The method includes: sending an information extraction instruction to the storage device, wherein the information extraction instruction is configured to query the storage device for power limitation information; detecting whether the storage device is switched to a low power consumption mode; if the storage device is switched to the low power consumption mode, performing a multi-stage power control on the storage device according to the power limitation information obtained from the storage device, wherein the multi-stage power control includes: in a first time range after the storage device switches to the low power consumption mode, applying a first stage limitation on power provided from the host system to the storage device; and in a second time range after the first time range, applying a second stage limitation on the power, wherein the first stage limitation is different from the second stage limitation.

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