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Storage volume online migration method and device and storage volume online migration system

A technology of storage volume and storage pool, which is applied in the field of online migration of storage volume and the system field of online migration of storage volume, and can solve problems such as inability to realize online migration of storage volume

Pending Publication Date: 2020-11-10
北京星辰天合科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The main purpose of this application is to provide a method, device, computer-readable storage medium, processor, and system for online migration of storage volumes, so as to solve the problem that online migration of storage volumes cannot be realized in the prior art

Method used

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  • Storage volume online migration method and device and storage volume online migration system
  • Storage volume online migration method and device and storage volume online migration system
  • Storage volume online migration method and device and storage volume online migration system

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Embodiment Construction

[0033] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0034]In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0035] It should be noted that the terms "first" and "second"...

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Abstract

The invention provides a storage volume online migration method and device and a storage volume online migration system. The method comprises the steps of receiving a migration instruction; migratingdata of source volume to target volume according to a migration instruction; under the condition that a business writing instruction is received in the migration process, synchronously writing the business data into the source volume and the target volume; and under the condition that all data of the source volume is migrated to the target volume, converting the execution object written with the business instruction from the source volume to the target volume, and deleting the source volume. According to the method, in the data migration process, the business data is synchronously written intothe source volume and the target volume, so that the execution of the business instruction is not interrupted, the online migration of the storage volume is realized, and the problem that the onlinemigration of the storage volume cannot be realized in the prior art is solved.

Description

technical field [0001] The present application relates to the technical field of online migration, and in particular, relates to a method and device for online migration of storage volumes, a computer-readable storage medium, a processor, and a system for online migration of storage volumes. Background technique [0002] Snap based migration is based on cow snapshots. This type of migration is based on the snapshot mechanism. The snapshot of the virtual machine contains all the stored data. The migration process of the snap based virtual machine is to continuously take snapshots of the virtual machine - migrate snapshots, Until a snapshot smaller than the predetermined value is obtained, the virtual machine is temporarily stopped at this time, and then the last difference data is quickly migrated to the target, and then the virtual machine is started on the target machine. The characteristic of this solution is that taking a snapshot will cause performance loss, and the snap...

Claims

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Application Information

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IPC IPC(8): G06F3/06
CPCG06F3/0614G06F3/0647G06F3/0659G06F3/0665G06F3/067
Inventor 王文斌张旭明王豪迈胥昕
Owner 北京星辰天合科技股份有限公司
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