Remote storage disk control device with function to transfer commands to remote storage devices

摘要

A storage system comprising:
a virtualization device coupled to an information processing device and having a first controller and at least one virtual volume;
said first controller adapted to relay a data input request to a first logical volume in a storage device based on a relationship between said virtual volume and said first logical volume;
said storage device being coupled to said virtualization device and having a second controller and a plurality of disk drives, said disk drives being related to said first logical volume; and
said second controller being adapted to: receive said data input request
wherein said first controller is further adapted to:
receive a pair control command
relay a pair control command to said first logical volume; and
wherein said second controller is further adapted to: receive said pair control command and control a pair status between said first logical volume and a second logical volume in response to said pair control command.