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JBOD cascade system and method

A cascading system and cascading technology, applied in the storage field, can solve problems such as wrong connections and wrong ports, and achieve the effect of avoiding hidden troubles

Active Publication Date: 2017-10-20
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, in the process of product implementation and customer maintenance, maintenance personnel often connect the wrong port by mistake. Even if the connection is wrong, the SAS channel card can still identify the device, resulting in other hidden dangers

Method used

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] The embodiment of the present invention discloses a JBOD cascade system (JBOD, Just a Bunch Of Disks, disk cluster), see figure 2 As shown, the system includes a SAS channel card 11 and a SAS expansion card set 12 connected to the SAS channel card 11. It is characterized in that, using Zoning partition technology, the uplink port of each SAS expansion card 13 in the SAS expansion card set 12 It is the same partition as the connected hard disk, and the ...

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Abstract

The invention discloses a JBOD cascade system. The system comprises an SAS channel card and an SAS extended card set connected with the SAS channel card; and by utilizing a Zoning technology, an upper connection port of each SAS extended card in the SAS extended card set and a connected hard disk are both a same zone, and a lower connection port is a zone different from the upper connection port and the connected hard disk. By utilizing the Zoning technology, the upper connection port of each SAS extended card in the SAS extended card set and the connected hard disk are both the same zone, and the lower connection port is the zone different from the upper connection port and the connected hard disk, so that the SAS extended cards only can receive verification information of the SAS channel card through the upper connection ports and return reply information; and the SAS channel card judges whether the reply information is received or not to judge whether the SAS extended cards have a wiring error or not, so that fault hidden dangers caused by the wiring error are avoided.

Description

technical field [0001] The invention relates to the field of storage, in particular to a JBOD cascading system and method. Background technique [0002] In the storage backend, in order to expand the number of large-scale hard disks, the storage field generally adopts the SAS topology (SAS, Serial Attached SCSI, serial SCSI), as shown in the attached figure 1 As shown, the storage is connected to a multi-level SAS expansion card through a port of the SAS channel card, and each level of SAS expansion card can expand a certain number of hard disks; each level of SAS expansion card has 2 ports, and one port is connected to the upper level The SAS expansion card is called the uplink port, and one port is connected to the next-level SAS expansion card, which is called the downlink port; the SAS channel card and the SAS expansion card send SCSI commands (SCSI, Small Computer System Interface, small computer system interface) to the The SAS expansion card connected to the downlink...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0614G06F3/0689
Inventor 王献飞
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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