| 摘要 |
Provided is an operating method of a data storage device including a plurality of nonvolatile memory devices. The operating method includes the steps of: dividing storage areas of the nonvolatile memory devices into a first memory area and a second memory area; determining wear levels of each of the first memory area and the second memory area; and varying a ratio of the first memory area and the second memory area according to the determined wear levels. |
