Abstract: A redundant array of independent disks (RAID) storage system includes a plurality of storage devices that perform an erase operation according to a plurality of erase unit sizes. A RAID controller controls the plurality of storage devices based on a RAID environment. The RAID controller adjusts the erase unit sizes with respect to at least some of the plurality of storage devices, respectively.

Abstract: A storage device includes a plurality of first memories, a controller, and a second memory. The controller controls the first memories such that first and second data chunks associated with target data are distributively stored in the plurality of first memories. The controller generates a first intermediate parity using the first data chunk, which is processed immediately before the second data chunk. When the second data chunk is not a data chunk which is processed last in connection with the target data and the first intermediate parity is buffered in the second memory, the controller generates a second intermediate parity using the first intermediate parity buffered in the second memory and the second data chunk, and outputs the second intermediate parity to the second memory to be buffered.

Abstract: A storage device includes a plurality of first memories, a controller, and a second memory. The controller controls the first memories such that first and second data chunks associated with target data are distributively stored in the plurality of first memories. The controller generates a first intermediate parity using the first data chunk, which is processed immediately before the second data chunk. When the second data chunk is not a data chunk which is processed last in connection with the target data and the first intermediate parity is buffered in the second memory, the controller generates a second intermediate parity using the first intermediate parity buffered in the second memory and the second data chunk, and outputs the second intermediate parity to the second memory to be buffered.

Abstract: A redundant array of independent disks (RAID) storage system includes a plurality of storage devices that perform an erase operation according to a plurality of erase unit sizes. A RAID controller controls the plurality of storage devices based on a RAID environment. The RAID controller adjusts the erase unit sizes with respect to at least some of the plurality of storage devices, respectively.

Abstract: A method of controlling a storage device comprises monitoring whether a quality of service (QoS) of the storage device satisfies a quality condition set through a host, and adjusting a current setting of at least one operation metric of the storage device related to the QoS, according to a result of the monitoring.

Abstract: A method of controlling a storage device comprises monitoring whether a quality of service (QoS) of the storage device satisfies a quality condition set through a host, and adjusting a current setting of at least one operation metric of the storage device related to the QoS, according to a result of the monitoring.