HYBRID STORAGE SYSTEM FOR A MULTILEVEL RAID ARCHITECTURE

摘要

Embodiments of the present invention provide a hybrid storage system for a multilevel RAID architecture. More particularly, certain embodiments of the present invention relate to a hybrid RAID controller coupled to a system control board. A DDR RAID controller and an HDD/flash RAID controller are coupled to the hybrid RAID controller. A set of DDR RAID control blocks is coupled to the DDR RAID controller, and each of the set of DDR RAID control blocks includes a set of DDR memory disks. In addition, a set of HDD/flash RAID control blocks is coupled to the HDD/flash RAID controller, and each of the set of HDD/flash RAID control blocks includes HDD/flash SSD units.