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Method and device for raising serial storage equipment reliability and elasticity

A technology for storage devices and storage controllers, applied to electrical components, transmission systems, instruments, etc., can solve problems such as inaccessibility of disk drives and frustration of efforts

Inactive Publication Date: 2006-08-16
IBM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This way, if the controller fails, the disk drive becomes inaccessible
Because of these deficiencies, efforts to use S-ATA technology to build larger systems capable of accessing multiple disk drives have been frustrated

Method used

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  • Method and device for raising serial storage equipment reliability and elasticity
  • Method and device for raising serial storage equipment reliability and elasticity
  • Method and device for raising serial storage equipment reliability and elasticity

Examples

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Embodiment Construction

[0025] In the following description of exemplary embodiments of the invention, reference is made to the accompanying drawings forming a part of this specification, which depict by way of illustrations specific forms in which the invention may be implemented. It is to be understood that when structural changes are made, other implementations may also be utilized without departing from the scope of the present invention.

[0026] The present invention provides such methods and devices, which can provide interconnected access of multiple controllers to multiple storage devices, thereby improving reliability and scalability when using serial ATA storage devices. In one embodiment of the present invention, the peripheral device and the CPU are connected through a packet switching fabric. Communication between devices and operation of the devices are performed asynchronously, but the invention is not limited to asynchronous operation.

[0027] To improve communication speed, reliab...

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PUM

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Abstract

A method, system and apparatus for providing inter-connective access of a plurality of controllers to a plurality of serial storage devices are provided. Serial storage devices are provided with a serial operative connection to a data communication bridge. The bridge is operatively coupled to a plurality of controllers. The plurality of controllers is provided concurrent targeted connections to the set of serial storage devices. In one embodiment, InfiniBand(R) technology further increases the scalability and enhances the reliability of a data communication system provided with a plurality of (S-ATA) storage devices. The reliability of the data communication system is enhanced because if one controller should fail, another controller may still achieve and maintain access to the plurality of serial storage devices.

Description

technical field [0001] Broadly speaking, the present invention relates to communication between processors and storage devices; more specifically, it relates to a method and apparatus for communicating between multiple controllers and multiple serial storage devices and serial storage devices Simultaneous connections are provided. technical background [0002] The Parallel ATA interconnect, which has been in use since the 1980s, has been the dominant internal storage interconnect technology for desktop and mobile computers. Parallel ATA is used to connect storage devices, such as hard disks, DVD drives, and CD drives, to the motherboard. The relative simplicity, high performance, and low cost of Parallel ATA enable the high price-to-performance ratio demanded by the mainstream desktop and portable PC markets. [0003] However, Parallel ATA also has several limitations that prevent it from continuing to improve its performance. For example, in the near future, integrated c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/14G06F13/00H04L29/08
CPCH04L29/08072H04L29/08549H04L69/329H04L67/1097
Inventor K·R·瑟乌古奇
Owner IBM CORP