| 摘要 |
The storage system is coupled to a host apparatus and includes a plurality of storage devices, each of which includes a plurality of real pages, and a controller. The controller is configured to: manage the plurality of storage devices as a pool; provide a virtual volume to the host apparatus, the virtual volume including a plurality of virtual pages to each of which a portion of the pool is allocated in accordance with a write command; distribute data written in a first virtual page to a first group of real pages, the first group of real pages making up a redundant array and being selected from different storage devices; and migrate data stored in a first real page, which is a real page of the first group and belongs to a first storage device, to another storage device without migrating data stored in another real page of the first group. |
