Memory controller, storage device, information processing system, and memory control method

A storage device comprising:

• a plurality of memory modules requiring different write times from one another;
• a plurality of write request holding units that hold a write request with respect to each of the plurality of memory modules, the write request being issued to request writing in each of the plurality of memory modules;
• and
• a selection unit that selects one of the plurality of write request holding units in accordance with memory state information indicating whether each of the plurality of memory modules is in a busy state, and causes outputting of the write request.

An information processing system comprising:

• a storage device including:
• a plurality of memory modules requiring different write times from one another;
• a plurality of write request holding units that hold a write request with respect to each of the plurality of memory modules, the write request being issued to request writing in each of the plurality of memory modules;
• and
• a selection unit that selects one of the plurality of write request holding units in accordance with memory state information indicating whether each of the plurality of memory modules is in a busy state, and causes outputting of the write request;
• and
• a host computer that requests the storage device to perform the writing.