Patent ID: 8904104

Claim:
A hybrid storage system, comprising: a storage unit comprising: a mid-plane external to a system control board and directly coupled to the system control board, a first RAID controller external to the mid-plane and directly coupled to the mid-plane, a double data rate semiconductor storage device (DDR SSD) module coupled to the first RAID controller, the DDR SSD module comprising a set of DDR SSD units, a second RAID controller external to the mid-plane and directly coupled to the mid-plane, and a hard disk drive (HDD) module coupled to the second RAID controller, the HDD module comprising a set of HDD/Flash SDD units; a controller comprising a synchronization control module adjusting synchronization of a data signal from or to the storage unit; a fan module directly coupled to the mid-plane and the DDR SSD module; a power supply module directly coupled to the mid-plane and the HDD module; and a battery module directly coupled to the mid-plane and the HDD module.