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Method, device and computer readable storage medium for storage management

A storage management and storage processor technology, applied in the field of storage management

Active Publication Date: 2021-06-04
EMC IP HLDG CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to distribute access to data in the cache between two or more storage processors to achieve unified management of the storage system is challenging

Method used

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  • Method, device and computer readable storage medium for storage management
  • Method, device and computer readable storage medium for storage management
  • Method, device and computer readable storage medium for storage management

Examples

Experimental program
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Embodiment Construction

[0021] Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0022] As used herein, the term "comprise" and its variants mean open inclusion, ie "including but not limited to". The term "or" means "and / or" unless otherwise stated. The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment." The term "another embodiment" means "at least one further embodiment". The terms "first", "second", etc. may refer to di...

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PUM

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Abstract

Embodiments of the present disclosure relate to methods, apparatuses, and computer-readable storage media for storage management. The method includes, in response to obtaining an access request at the first storage processor for the storage unit, determining whether the storage unit is currently accessible, the storage unit including at least one storage area. The method also includes determining whether the first storage processor has access to the storage unit in response to the storage unit being currently inaccessible. Additionally, the method includes requesting access rights from a second storage processor in response to the first storage processor not having access rights, the second storage processor being associated with a mirrored storage unit of the storage unit, and the first storage processor being associated with the first storage processor Two storage processors have mutually exclusive write access.

Description

technical field [0001] Embodiments of the present disclosure relate generally to storage management, and in particular to methods and apparatus for distributing access rights to storage units among multiple storage processors. Background technique [0002] In a dual-controller storage system, two controllers called storage processors exist to provide storage services to hosts. Usually, a cache mirroring technology is used to ensure the security of data in the cache. The principle of cache mirroring is to mirror the data in the cache between two storage processors, in other words, the data in the caches of the two storage processors are backed up by each other. How to distribute access rights to data in the cache among two or more storage processors to achieve unified management of the storage system is challenging. Contents of the invention [0003] Embodiments of the present disclosure provide methods, devices and computer-readable media for storage management. [0004...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F12/14
CPCG06F3/0604G06F12/1458G06F3/061G06F3/0637G06F3/0683G06F3/0659G06F3/065G06F3/0622
Inventor 刘友生高健徐鑫磊杨利锋奉昌玉
Owner EMC IP HLDG CO LLC