Patent ID: 9411716
Filing Date: 2016-08-09
CPC Classification: G06F

Claim Text:
1. A system comprising: a controller being operable to manage a plurality of logical storage areas, each of the plurality of logical storage areas having the same fixed-length, and the controller being operable to manage a volume of a plurality of volumes, the volume including a plurality of portions to which at least one of the plurality of logical storage areas is allocated on a logical storage area basis in order to write data to the volume, the controller being operable to allocate one logical storage area of the plurality of logical storage areas to one portion of the plurality of portions included in the volume to store data to the one logical storage area, when the controller receives a write access of the data to the one portion, and the controller being operable to compress the data stored in the one logical storage area and to allocate two logical storage areas of the plurality of logical storage areas to the one portion of the plurality of portions included in the volume to store the compressed data to the two logical storage areas.