DATA STORAGE SYSTEM, DATA STORAGE DEVICE AND RAID CONTROLLER

摘要

Provided are a data storage system, a data storage device and a RAID controller, which can control RAID operation and a RAID operating method of a memory device by transmitting a RAID configuration signal to the memory device. The data storage system includes a memory device that may include m nonvolatile memories, where m is a natural number, and a memory controller that may program data to at least the first to mth pages. The data storage system also includes a RAID controller that may generate a RAID configuration signal, including a RAID operation signal for determining whether to activate or deactivate a RAID operation of the memory device, and that may transmit the data and the RAID configuration signal to the memory controller. The memory controller may generate a RAID parity using first to (m−1)th data from the RAID controller and program the first to (m−1)th data to the first to (m−1)th pages and the RAID parity to the mth page when the RAID operation signal is activated, but program the first to mth data received from the RAID controller to the first to mth pages when the RAID operation signal is deactivated.

主权项

1. A data storage system comprising:
a memory device, including a nonvolatile memory and a memory controller configured to program data to at least m pages of the nonvolatile memory, where m is a natural number; and a RAID controller configured to generate a RAID configuration signal, including a RAID operation signal for activating and deactivating a RAID operation of the memory device, and to transmit the data and the RAID configuration signal to the memory controller, wherein the memory controller is further configured to generate a RAID parity using first to (m−1)th data from the RAID controller and program the first to (m−1)th data to the first to (m−1)th pages and the RAID parity to the mth page when the RAID operation signal is activated, and wherein the memory controller is further configured to program the first to mth data received from the RAID controller to the first to mth pages when the RAID operation signal is deactivated.