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Double-controller storage extension cabinet cascade method

A storage expansion, dual-controller technology, applied in the direction of instruments, the generation of response errors, the input/output process of data processing, etc., can solve the problem of JBOD not being able to access normally, and achieve the effect of ensuring normal operation.

Inactive Publication Date: 2017-11-03
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the main storage cabinet and JBOD are cascaded in the forward link. When one of the JBODs (such as JBOD 3) fails, all JBODs after JBOD 3 cannot access normally.

Method used

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  • Double-controller storage extension cabinet cascade method

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Embodiment Construction

[0011] The following will be combined with figure 1 Embodiments of the present invention are further described in detail:

[0012] attached figure 1 The diagram shown is a cascading diagram of a SAS expansion port connected to an expansion cabinet chassis. Storage devices are divided into main storage cabinets (attached figure 1 The top one) and JBOD, the main cabinet only needs to be connected to the external JBOD, as the head node, the interface on the main cabinet is only the IN port, and the JBOD needs to be cascaded with multiple units, and as the intermediate node, there are IN ports and OUT ports. The expansion cabinet connection should start from the storage main cabinet, and then connect the expansion cabinets from near to far. The other expansion cabinet is connected to the expansion cabinet from far to near in the opposite direction to form a redundant link. When one of the links fails, the main storage cabinet can normally access the expansion cabinet through th...

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PUM

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Abstract

The invention relates to the field of controller storage products, in particular to a double-controller storage extension cabinet cascade method. Through a novel double-controller extension cabinet cascade manner, one path of extension cabinets are connected from near to far from a storage main cabinet; the other path of extension cabinets are connected from far to near from an opposite direction so as to form a redundant link, so that the fault-tolerant connection of different SAS regions can be realized; and when one path fails the controller storage main cabinet can normally access the extension cabinets through the redundant link, so that the normal operation of front-end businesses is ensured.

Description

technical field [0001] The invention relates to the field of controller storage products, in particular to a method for cascading dual-controller storage expansion cabinets. The present invention can realize the fault-tolerant connection of different SAS domains by inventing a novel double-controller expansion cabinet cascading method, and when one of the links fails, the controller storage main cabinet can normally access the expansion cabinet through the redundant link , to ensure the normal operation of the front-end business. Background technique [0002] With the advent of the era of big data, the amount of data is rapidly expanding and becoming larger, and the storage and processing of large amounts of data determine the future development of enterprises. This requires storage products to provide a large amount of storage space. Generally, storage products increase storage system capacity by cascading expansion cabinets. [0003] SAS (Serial Attached SCSI) is Serial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F11/20
CPCG06F3/0614G06F3/062G06F3/0635G06F3/0689G06F11/2005
Inventor 房永昌
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD