ISCSI disc array controller with internal path redundant function

Abstract

The invention discloses an embedded IOP331 processor, which integrates a master CPU, a DDR2 memory, a dual-gigabit Ethernet, a dual-SATA disk controller and other major chips on a signal mainboard and can realize the single-path access and control of the maximum 16 SATA disks and also supports the dual-path redundancy control of 8 hard drives of a stand-alone. The host end can adopt the standard ISCSI agreement to realize the RAID creation, zoning and other disk operations of the SATA disks. The invention not only realizes the ISCSI disk array controller functions of a single mainboard, but also selectively provides the path redundancy of 8 disks and the path redundancy of the dual-gigabit Ethernet host in the controller based on the provision of 16-bit ISCSI access and RAID operations, so as to greatly improve the reliability of the disk array system under a single controller. The invention achieves high availability and high reliability, on the basis of low cost. At the same time, in order to prevent illegal copying of software products, the invention integrates a security chip with an SHA-1 encryption engine for the security encryption of the entire system.

Description

technical field [0001] The invention relates to the computer field, in particular to the application field of ISCSI high availability and high reliability safe storage. Background technique [0002] ISCSI disk array products based on SATA hard drives and SATA controllers are widely used in small and medium-sized enterprises because of their low prices. But stand-alone ISCSI controllers generally have the defect of low reliability, especially ISCSI disk array products based on SATA controllers, unlike disk products based on SAS controllers, it is easy to implement disk arrays through dual ports of the controller and SAS hard disk. Path redundancy. The SATA hard disk itself does not have dual ports, so it is necessary to add a corresponding switching circuit to achieve path redundancy; Contents of the invention [0003] The system composition of the present invention comprises INTEL IOP331 embedded controller (A), integrates INTEL82546 dual-port gigabit network (B), double...

AI Technical Summary

Problems solved by technology

But stand-alone ISCSI controllers generally have the defect of low reliability, especially ISCSI disk array products based on SATA controllers, unlike disk products based on SAS controllers, it is easy to implement disk arrays through dual ports of the controller and SAS hard disk. path redundancy

The SATA hard disk itself does not have dual ports, so it is necessary to add a corresponding switching circuit to achieve path redundancy;

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