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Online migration method, device and equipment for disk data and medium

A data and disk technology, applied in the computer field, can solve the problems of large storage space, large traffic, waste of resources, etc., and achieve the effect of avoiding migration, reducing storage space, and avoiding waste of resources

Inactive Publication Date: 2020-05-01
北京浪潮数据技术有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, since the snapshot file is a copy of the previous disk file, there is a large amount of data that is duplicated with the current disk file; this results in a large amount of traffic during migration, and also occupies a large amount of storage space in the destination storage pool after migration, resulting in waste of resources

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  • Online migration method, device and equipment for disk data and medium
  • Online migration method, device and equipment for disk data and medium
  • Online migration method, device and equipment for disk data and medium

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] The core of the present invention is to provide a disk data online migration method, device, equipment and medium, by only migrating the difference data and dirty data table in the historical snapshot and the temporary snapshot from the historical snapshot to the destination storage pool, completely While completing all the data currently stored in the virtual machine, the migration of a large amount of duplicate data is avoided, and the ...

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Abstract

The invention discloses an online migration method for disk data, which comprises the following steps of: when migration information is received, creating a temporary snapshot for a current disk file;creating a dirty data table used for recording all data generated in the running process of the virtual machine from the moment when the temporary snapshot is created; and migrating the distinguishing data different from the historical snapshots in the historical snapshots and the temporary snapshots and the dirty data table to a target storage pool. Therefore, by only migrating the historical snapshots, the distinguishing data and all the dirty data, migration of a large amount of repeated data is avoided while all the currently stored data in the virtual machine is completely completed, andthe flow occupied during migration is greatly reduced; and the storage space occupied in the target storage pool after migration is reduced, and resource waste is avoided. In addition, the online migration device and equipment for the disk data and the medium correspond to the method.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to an online migration method, device, equipment and medium of disk data. Background technique [0002] With the rapid development of computer technology and Internet technology, virtualization platforms have been widely used, showing great advantages in resource integration. Turn hardware such as CPU, memory, and disk into a "resource pool" that can be dynamically managed, thereby improving resource utilization and simplifying system management. The snapshot technology of the virtual machine disk is a copy of the virtual machine disk file at a certain moment. It is used to restore the disk file system to the previous environment by using Revert to Snapshot when the system crashes or is abnormal. Taking a snapshot of the disk file plays a very important role. [0003] In practical applications, online virtual platform file migration with snapshots is a very common operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/0641G06F3/0647G06F3/0667G06F3/0676
Inventor 王亮刘为峰
Owner 北京浪潮数据技术有限公司
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