Information processing system and information processing method

An information processing system comprising:

• a plurality of nodes that has a processor;
• and
• a storage device that stores data, wherein
• the information processing system operates virtual machines and storage controllers on the processor,
• each of the plurality of nodes includes at least two of the storage controllers, and the storage controllers in different nodes make up a storage controller group, in which one of the storage controllers is capable of taking over processing of the storage controllers arranged in different nodes, the one of the storage controllers is a controlling storage controller,
• the virtual machines are movable between the different nodes of the plurality of nodes by deploy,
• a first storage controller of the storage controllers that is arranged in a same node of the plurality of nodes as a first virtual machine of the virtual machines that processes data input and output, and a second storage controller that is arranged in a different node of the plurality of nodes from the first virtual machine, and the first storage controller and the second storage controller are included in the storage control group,
• when a fault occurs in the node in which the first virtual machine and the first storage controller are located,
• the second storage controller that belongs to the same group as the first storage controller and operates on the different node takes over the processing of the first storage controller,
• the first virtual machine is deployed in the different node in which the second storage controller, which takes over the processing, operates,
• wherein regarding each of the virtual machines, a node where one of the virtual machines can be arranged and a node where one of the virtual machines cannot be arranged is defined by a restriction, and a management server arranges the second storage controller in the node where one of the virtual machines can be arranged according to the restriction.