Data storage device including multiple memory modules and circuitry to manage communication among the multiple memory modules

A data storage device comprising:

• a plurality of first memory modules to temporarily store data, each of the plurality of first memory modules including a first storing place manager and volatile semiconductor memory;
• and
• a plurality of second memory modules to store data stored in each of the first memory modules, each of the plurality of second memory modules including a second storing place manager and non-volatile semiconductor memory,
• wherein the first storing place managers included in the first memory modules and the second storing place managers included in the second memory modules communicate and determine, for each first memory module storing data, a destination second memory module as a destination of the data,
• the first storing place manager of each of the first memory modules transmits a living confirmation message and a connection request message to each of the second memory modules,
• each of the second storing place managers included in the second memory modules transmits, to the first storing place manager of each of the first memory modules, a connection acceptance message indicating an acceptance to be the destination second memory module, and
• each of the first memory modules transmits the data to a corresponding destination second memory module determined as the destination of data.