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A data storage system and method based on cascaded Expander

A data storage system and data storage technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of unreachable performance indicators, unguaranteed hard disk, performance limitations, etc., and achieve reliable storage and Fast processing, low latency, and performance-enhancing effects

Inactive Publication Date: 2019-01-04
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the number of hard disks mounted under Expander is too large, the performance will be limited by the bandwidth when reading and writing at the same time, and reasonable performance indicators cannot be achieved, so that each hard disk cannot be guaranteed to have high performance and low latency.

Method used

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  • A data storage system and method based on cascaded Expander
  • A data storage system and method based on cascaded Expander

Examples

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Embodiment Construction

[0028] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0029] Such as figure 1 The shown data storage system based on cascading Expander includes: a RAID card and four Expander chips; the four Expander chips are specifically: Expander1, Expander2, Expander3 and Expander4; the Expander1 and Expander2 respectively pass two The SAS cable is connected to the RAID card, Expander1 is connected to Expander3 through two SAS cables, Expander3 is connected to Expander4 through two SAS cables, and Expander4 is connected to Expander2 through two SAS cables. The SAS line uses a 12G SAS line to ensure uplink and downlink bandwidth. The RAID card is a RAID card with a PCIE X16 interface, and the RAID card can also use a SAS card with a PCIE X16 interface.

[0030] The data storage system based on the cascaded Expander mentioned above is implemented by cascading four Expander chips, which ensures the high performance and...

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PUM

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Abstract

The invention discloses a data storage system and a method based on a cascade Expander, comprising: a RAID card and four Expander chips; wherein the four Expander chips are: Expander 1, Expander 2, Expander 3 and Expander 4; the Expander 1 and the Expander 2 are respectively connected with the RAID card through two SAS lines, Expander1 is connected to Expander3 via two SAS cables, Expander3 is connected to Expander4 via two SAS cables, and Expander4 is connected to Expander2 via two SAS cables. The invention can form a virtual hard disk distribution and connection diagram according to the reported hard disk information through a RAID card, and select the fastest IO link according to the data quantity requested by IO and the hard disk distribution, thereby improving the storage speed.

Description

technical field [0001] The present invention relates to the technical field of data storage, and more specifically relates to a cascade Expander-based data storage system and method. Background technique [0002] A data storage system refers to a system composed of various storage devices for storing programs and data, control components, devices for managing information scheduling, and processing algorithms. [0003] In this era of explosive data growth, data storage and processing are particularly important, and have penetrated into various industries and fields, especially the Internet industry. The rapid growth of data generated by the network makes data storage even more important. How to place more hard disks with larger capacity in the server and ensure its high performance and low latency has become a difficult problem. [0004] Usually, the hard disk mounted under the Expander is used to solve the problem of insufficient number of server hard disks. However, when ...

Claims

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Application Information

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IPC IPC(8): G06F13/16G06F3/06
CPCG06F3/0611G06F3/0613G06F3/0664G06F13/16G06F2213/0026
Inventor 李超
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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