STORAGE DEVICE AND STORAGE DEVICE CONTROL METHOD

摘要

According to one embodiment, a storage device includes a storage medium and a controller. The storage medium includes a plurality of normal sectors that stores data and a redundant sector that stores redundant sector data for restoring data stored in each of the normal sectors. The controller stores invalid information in a normal sector when data is to be written to the normal sector belonging to a data section formed of a combination of the normal sectors and the redundant sector corresponding to the normal sectors. The invalid information indicates that the redundant sector data stored in the redundant sector belonging to the data section is invalid.