Storage devices including nonvolatile memory and related methods

Abstract

A storage device includes: nonvolatile memory devices including first and second nonvolatile memory devices; a storage controller which receives data blocks from a host, generates a first parity block by performing a first XOR operation, and distributes the data blocks and first parity block to respective nonvolatile memory devices; and a data bus for transferring signals between the nonvolatile memory devices and the storage controller. The storage controller receives a new data block from the host and provides the new data block to the second nonvolatile memory device. The first nonvolatile memory device provides the first data block to the second nonvolatile memory device without using the storage controller. The second nonvolatile memory device generates a new parity block by performing a second XOR operation on the new data block, the first data block, and the first parity block without the first nonvolatile memory device performing an XOR operation.