The invention discloses a hybrid storage
system, which belongs to the field of computer storage and is used for solving the problems of high
system complexity and high cost due to the need of a plurality of controllers and single storage medium controlled by each controller existing in the conventional mixed storage
system. The
hybrid storage system consists of N storages and a controller, wherein each storage comprises a controller communication module, a storage medium and a storage information module; and the controller comprises a host communication module, a load control module, an array control module, an
address mapping module, a storage control module and a buffer. The controller can be used for identifying reading and writing requests reaching a host and judging the cold and hot degree and magnitude of the writing request to perform load control so as to realize
hybrid storage of multiple types of storages. The storage is a storage medium
chip as well as a simple
information storage chip, so that the replacement cost of the
hybrid storage system is reduced; and
data recovery is performed by using the array control module in the controller, so that the performance of the
hybrid storage system is enhanced, the service life of the
hybrid storage system is prolonged, and the establishment and use costs of the
hybrid storage system are reduced.