Memory system and its control methods

Abstract

This invention provides a memory system with improved reliability and performance, and a control method for the memory system. The memory system of one embodiment includes a plurality of memory devices and a memory controller that controls the plurality of memory devices. The memory controller is configured to receive a command from an external host device to write data to any of the plurality of memory devices, and to change a power throttling setting based on information related to the write destination specified by the received write command. As a result of changing the power throttling setting, when the write energy at the write destination is a first value, the number of write operations that can be performed in parallel is a first number; when the write energy at the write destination is a second value lower than the first value, the number of write operations that can be performed in parallel is a second number greater than the first number.

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