| 摘要 |
PROBLEM TO BE SOLVED: To optimize access performance to data stored before and after the change of system configurations.SOLUTION: A storage system SM includes: a first storage casing 101; a second control unit 121; and a second storage unit 122. The first storage casing 101 has a first control unit 111 and a first storage unit 112. The first storage unit 112 has a first storage 113 and a first storage control part 114. The second storage unit 122 has a second storage 123 and a second storage control part 124. The first control unit 111 is configured to, in accordance with the degree of deviation generated between the storage capacity of a storage region being allocated in the first storage 113 and the storage capacity of a storage region being allocated in the second storage 123, perform the rearrangement control of the storage region being allocated on the basis of allocation information including the allocation situation of the storage regions in the first storage 113 and the second storage 123. |
