Storage control device, storage system, and storage control method

摘要

A storage control device including an area control unit, an attribute control unit, and an access control unit. The area control unit determines one or more valid areas for each type of areas included in respective storage areas stored in two or more storage devices to generate a virtual storage having the valid areas as a storage area. The attribute control unit selects, as speed information of the virtual storage, a lowest value of minimum guaranteed speeds in reading and writing which are included among respective pieces of attribute information stored in the two or more storage devices, with reference to the respective pieces of the attribute information. The access control unit transmits information regarding the storage area of the virtual storage and the speed information to a host device that reads and writes data from/to the virtual storage.

主权项

1. A storage control device that controls two or more storage devices, the storage control device comprising:
an area control unit configured to determine one or more valid areas for each type of areas included in respective storage areas stored in the two or more storage devices to generate a virtual storage having, as a storage area, a set of the one or more valid areas; an attribute control unit configured to select, as speed information of the virtual storage, a lowest value of minimum guaranteed speeds in reading and writing which are included among respective pieces of attribute information stored in the two or more storage devices, with reference to the respective pieces of the attribute information; and an access control unit configured to transmit information regarding the storage area of the virtual storage and the speed information to a host device that reads and writes data from/to the virtual storage.