ISCSI disc array controller with internal path redundant function

A disk array and controller technology, applied in high-reliability security storage applications, ISCSI high-availability, computer fields, can solve the problems of disk path redundancy, no dual ports, low reliability, etc., to improve reliability and availability , the effect of improving safety

CN101359279AInactive Publication Date: 2009-02-04LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2009-02-04
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

Embodiment Construction

[0019] Attached below figure 1 The implementation of the present invention will be described below.

[0020] In the system structure shown in the accompanying drawing, the main chips of the system such as the Gigabit network chip and the SATA controller chip are connected through the PCI-X chip of the system; the two SATA controllers can be directly connected to 16 when the disk path redundancy function is not used. One hard disk realizes the maximum hard disk management function; when the path redundancy function is used, it is connected to the hard disk port selector, such as the XRS10L240 chip, to realize the disk path redundancy of the SATA controller, and the system software needs to monitor the state of the SATA controller when the path is switched. Detection, when a SATA controller is detected to be faulty, a switching command is sent to make another controller take over the work of the faulty controller. This switching can realize real-time switching and avoid downtime...