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Multi-dimensional health diagnosis method-based multi-path storage device

A storage device and device technology, applied in the storage field, can solve the problems that the multi-path solution cannot efficiently and accurately diagnose the path health, it is difficult to meet the performance requirements of the storage system, and it is not intelligent enough

Active Publication Date: 2018-04-03
EMC IP HLDG CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a single aspect of misinformation is often insufficient (or not intelligent enough) to help make good path-related decisions
Therefore, the existing multipath solutions cannot perform efficient and accurate path health diagnosis, and it is difficult to meet the performance requirements of the storage system

Method used

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  • Multi-dimensional health diagnosis method-based multi-path storage device
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  • Multi-dimensional health diagnosis method-based multi-path storage device

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Embodiment Construction

[0037] Hereinafter, the principle and spirit of the present disclosure will be described with reference to several exemplary embodiments shown in the accompanying drawings. It should be understood that these specific embodiments are described only to enable those skilled in the art to better understand and implement the present disclosure, but not to limit the scope of the present disclosure in any way.

[0038] figure 1 A diagram schematically showing a multi-path access technology scenario of a storage device in which an embodiment of the present disclosure may be implemented. Such as figure 1 As shown in, an access request (for example, an I / O request) from the file system 110 to the storage device 130 may finally reach the storage device 130 through the multipath unit 120. This solution is widely used in existing storage products. It should be understood, figure 1 Only briefly shows the units or components closely related to the present disclosure. In other embodiments, for...

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Abstract

Embodiments of the invention provide a storage management method and an electronic device. The storage management method comprises the steps of collecting information which indicates an access error of an access path used for accessing a storage device; based on the access error, performing fault diagnosis on the access path, wherein the fault diagnosis comprises at least one of the following diagnoses: topology-related first diagnosis, historical access error-related second diagnosis, and protocol-related third diagnosis; and based on the fault diagnosis, providing an output related to a health state of the access path.

Description

Technical field [0001] The present disclosure generally relates to storage technology, and more particularly, to a storage management method and electronic equipment. Background technique [0002] For most enterprise storage solutions, a multipath approach is introduced to support the high availability of the storage system. The multi-path method is used to provide a path redundancy solution for storage devices with alternate access paths. In this article, the terms "access path", "I / O path" or "path" are used to generally refer to the input and output I / O paths of the storage device including various components, such as the small computer system interface (SCSI) architecture I_T association model in. For example, for storage products based on the Serial SCSI (SAS) domain, the access path may include a host bus adapter (HBA) card, a SAS expander, and a target drive. [0003] The main problem of existing multi-path schemes lies in their path health diagnosis methods. These path ...

Claims

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Application Information

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IPC IPC(8): G06F11/20G06F11/22
CPCG06F11/2089G06F11/2247H04L41/065H04L41/064H04L41/0663H04L43/0817H04L43/0823G06F11/201G06F11/0727G06F11/076G06F11/3041G06F11/3055G06F2201/81G06F11/20G06F3/0602G06F3/0689H04L41/0686
Inventor 刘冰吕满
Owner EMC IP HLDG CO LLC