Hybrid storage system for a multi-level RAID architecture

摘要

Disclosed is a hybrid storage system, which can include a hybrid RAID controller coupled to a system control board. Coupled to the hybrid RAID controller are a DDR RAID controller and a HDD/Flash RAID controller. A set of DDR RAID control blocks are coupled to the DDR RAID controller, each of the set of DDR RAID control blocks can include a set of DDR memory disks. Further, a set of HDD RAID control blocks are coupled to the HDD/Flash RAID controller, each of the set of HDD RAID control blocks can include a set of HDD/Flash SSD Units.

主权项

1. A hybrid storage system for a multi-level RAID architecture, comprising:
a hybrid RAID controller coupled to a system control board; a DDR RAID controller coupled to the hybrid RAID controller; a main data backup component directly coupled to the DDR RAID controller; a set of DDR RAID control blocks coupled to the DDR RAID controller, each of the set of DDR RAID control blocks comprising a set of DDR memory disks; a HDD RAID controller coupled to the hybrid RAID controller; and a set of HDD RAID control blocks coupled to the HDD RAID controller, each of the set of HDD RAID control blocks comprising a set of HDD/Flash SSD Units, wherein each of the set of DDR RAID control blocks further comprises:
a hot spare disk coupled to the set of DDR memory disks;a RAID controller coupled to the set of DDR memory disks;a RAID fail component coupled to the RAID controller of the DDR RAID control block and to the hot spare disk; anda DDR RAID control block data backup component coupled to the RAID controller of the DDR RAID control block; wherein each of the set of HDD RAID control blocks further comprises:
a hot spare disk coupled to the set of HDD/Flash SSD Units;a RAID controller coupled to the set of HDD/Flash SSD Units; anda RAID fail component coupled to the RAID controller of the HDD RAID control block and to the hot spare disk, wherein the system control board comprises cache memory connected to an interface, wherein the set of DDR memory disks are volatile semiconductor memories, wherein the hybrid RAID controller comprises a first high-speed data controller connected to the DDR RAID controller and a first low-speed data controller connected to the HDD RAID controller, and wherein the system control board comprises:
a chip;a second high-speed data controller coupled to the chip;a second low-speed data controller coupled to the chip;a fibre channel chip coupled to the chip;a processor coupled to the chip; andthe cache memory coupled to the processor.