Storage system, method for processing, and program

A method for processing of storage system in which a plurality of RAID devices are connected to a network and data is multiplexed to primary data and secondary data by being mirrored among the RAID devices, the method for processing of storage system comprising steps of:

• RAID processing that executes request processing targeting for devices constituting RAID of a plurality of devices that store primary data for a request from a host device;
• copy request processing that requests data of a device corresponding to a failed device to a RAID device that is its mirror target at the time of occurrence of a device failure that can be recovered within the devices owing to the RAID configuration and writes the transferred data to a spare device for the recovery;
• copy response processing that reads out the data of the target device and transfers it to the requesting source upon receiving the data request from the RAID device that has the failure;
• and
• exclusive control that exclusively controls an access right to the devices constituting RAID and an access right to individual devices.

A program for processing storage system, which a plurality of RAID devices are connected to a network, that allow data to be multiplexed to primary data and secondary data by mirroring among the RAID devices, wherein said program allows a computer to execute:

• RAID processing that executes request processing targeting for devices constituting RAID of a plurality of devices that store primary data for a request from a host device;
• copy request processing that requests data of a device corresponding to a failed device to a RAID device that is its mirror target at the time of occurrence of a device failure that can be recovered within the devices owing to the RAID configuration occurs and writes the transferred data to a spare device for the recovery;
• copy response processing that reads out the data of the target device and transfers it to the requesting source upon receiving the data request from the RAID device that has the failure;
• and
• exclusive control that exclusively controls an access right to the devices constituting RAID and an access right to individual devices.