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Self-adaptive RAID grouping calculation method and device

A computing method and technology of a computing device, applied in the computer field, can solve the problems of low RAID error rate and failure to comprehensively consider storage system-level error modes, etc.

Active Publication Date: 2018-09-11
SHENZHEN YILIAN INFORMATION SYST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides an adaptive RAID grouping calculation method and device, which solves the technical problem in the prior art that the RAID design mainly considers the error association from the media design, but does not comprehensively consider the error mode on the storage system level , on the basis of error correlation in media design, make full use of the new error correlation found in system-level testing, and realize the comprehensive design of RAID, so that RAID can achieve the technical effect of the lowest error rate at the system level

Method used

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Embodiment 1

[0038]figure 1 It is a schematic flowchart of an adaptive RAID group calculation method in an embodiment of the present invention. like figure 1 As shown, it is applied to an adaptive RAID grouping computing device. The adaptive RAID grouping computing device includes an identification device and an operation device. The identification device has a reading module inside, and the operation device has data inside. A collection unit, a data processing unit, a memory, and the identification device is connected with the operation device. The method includes:

[0039] Step 110: Obtain the prior error association provided by the media manufacturer;

[0040] Step 120: obtain the first constraint of the medium according to the product performance medium controller;

[0041] Step 130: Obtain a slice grouping formula according to the prior error association and the first constraint, wherein the slice grouping formula includes a series of adjustable parameters.

[0042] Further, the m...

Embodiment 2

[0054] Based on the same inventive concept as the adaptive RAID group calculation method in the foregoing embodiment, the present invention also provides an adaptive RAID group calculation device, such as figure 2 shown, including:

[0055] a first obtaining unit, where the first obtaining unit is configured to obtain the prior error association relationship provided by the medium manufacturer;

[0056] a second obtaining unit, the second obtaining unit is configured to obtain the first constraint of the medium according to the product performance medium controller;

[0057] a third obtaining unit, configured to obtain a slice grouping formula according to the prior error association relationship and the first constraint, wherein the slice grouping formula includes a series of adjustable parameters;

[0058] The fourth obtaining unit is configured to select any reasonable parameter as the starting value and the first constraint according to the adjustable parameter, and obta...

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Abstract

The present invention provides a self-adaptive RAID grouping calculation method and device. The method comprises obtaining a priori error association provided by a medium manufacturer; obtaining a first constraint of the medium according to a product performance medium controller; obtaining a strip grouping formula according to the a priori error correlation and the first constraint, wherein the strip grouping formula includes a series of adjustable parameters; selecting any reasonable parameter as the starting value and the first constraint according to the adjustable parameters, and obtaining a first RAID grouping formula; establishing a system level test of a memory according to the first RAID grouping formula, and recording medium error information occurring during the test; obtaininga test error association mode according to the medium error information, wherein the error association mode is used as a second constraint; obtaining a second RAID grouping formula according to the the priori error association, the first constraint, the adjustable parameters, and the second constraint. The method solves the technical problem that the RAID design in the prior art does not comprehensively consider the error mode at the storage system level.

Description

technical field [0001] The present invention relates to the technical field of computers, and in particular, to an adaptive RAID grouping calculation method and device. Background technique [0002] RAID is a common error correction method in storage media controllers. Generally, it divides the data on the medium into several stripes by address, and generates a set of redundant information for each stripe. When the data of a certain address in the stripe is wrong, RAID can use this redundant information to correct the error. [0003] However, in the process of realizing the technical solutions of the invention in the embodiments of the present application, the inventor of the present application found that the above-mentioned technology at least has the following technical problems: [0004] The RAID design in the prior art mainly considers the error association originating from the media design, but does not comprehensively consider the error mode at the storage system le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/07
CPCG06F11/0796
Inventor 滕鹏杨禹周光华
Owner SHENZHEN YILIAN INFORMATION SYST CO LTD
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