Samsung Electronics Co., Ltd.

Jeongjae Cho

Youngil Kim

In-Su Kim

Myunghyun Jo

In a method of operating a storage device, first information associated with operation of the storage device is received from a host device. Second information internally generated based on write requests, read requests, and operation of the storage device is received. Program commands and read commands are transmitted to nonvolatile memories. Suspension commands are transmitted to at least one of nonvolatile memories. The suspension commands are generated based on the first and second information and are used to temporarily stop program operations performed based on the program commands. The number and timing of transmitting the suspension commands are controlled based on the first and second information. In response to changing at least one of the write requests and the read requests, the number and timing of transmitting the suspension commands are adaptively changed.

Method of operating storage device using program suspension control and storage device performing the same

A storage device includes: a memory; and a storage controller configured to control the memory and to update meta data by controlling the memory. The storage controller includes a journal manager having a range table. The journal manager is configured to: generate a plurality of journal data associated with the update of the meta data, restore the meta data by sequentially performing a replay operation for each of the plurality of journal data, update the range table based on the plurality of journal data, and skip the replay operation for at least one of the plurality of journal data based on the range table.

Storage device and operation method thereof

A storage device includes a memory die; a storage controller processor configured to control an operation performed in the memory die by scheduling a plurality of commands provided to the memory die; and memory storing a command queue corresponding to the memory die, wherein the storage controller processor is configured to, receive the plurality of commands respectively from a first tenant and a second tenant; schedule the plurality of commands in the command queue, according to the first and second tenants providing the plurality of commands; and reschedule the plurality of commands according to the operation performed in the memory die and urgency of the plurality of commands, and control the memory die to process the plurality of commands in an order different from an order in which the plurality of commands were received by the storage controller processor.

Growing community of inventors

Suwon-si, South Korea

Jeongjae Cho