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Method for preventing data snapshots from remaining on storage system

A storage system and data technology, applied in the field of data processing, can solve the problems of running out of storage space, paralysis of the storage system, and inability to completely delete data snapshots by the backup data deletion method, so as to avoid paralysis and save hard disk space.

Active Publication Date: 2013-12-25
江苏爱科赛尔云数据科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] The existing backup data deletion method cannot completely delete the data snapshot. When the data snapshot is left on the storage system, the following three problems will occur.
[0004] 1. Users cannot use these data snapshots left on the storage system;
[0005] 2. When the system runs for a long enough time, more and more data snapshots will be left on the storage system, which will eventually cause the storage space on the storage system to be used up and cause the storage system to crash;
[0006] 3. Data snapshots left on the storage system will waste a lot of hard disk space

Method used

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  • Method for preventing data snapshots from remaining on storage system

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] Embodiments of the present invention include: a method for preventing data snapshots from being left on a storage system, including: when the deduplication mechanism is enabled on a data volume, the backup and recovery application software cannot find the latest snapshot in the data volume on the storage system The data snapshot continues to retain the latest data snapshot information in the data snapshot table and the mapping information between the backup version and the latest data snapshot in the backup version and data snapshot mapping information table.

[0019] Specific steps include:

[0020] (100), first determine whether the dedu...

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Abstract

The invention discloses a method for preventing data snapshots from remaining on a storage system. The method comprises the following steps that when a repeated data elimination mechanism is started on a data volume, standby and recovery application software does not find the latest data snapshots in the data volume on the storage system, and the information of the latest data snapshots and the standby version in a data snapshot table, and the mapping information between the latest data snapshots and the standby version in the mapping information table of the data snapshots are continuously maintained. Through adopting the mode, the method has the advantages that the information of the data snapshots on the storage system can be automatically and completely deleted in an artificial way or according to the retention settings, the permanent remaining of the data snapshots at the moment on the storage system under the user-ignorant condition is avoided, great hard disk space is saved, and in addition, the collapse of the storage system caused by hard disk space lack is avoided.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a method for preventing data snapshots from being left on a storage system. Background technique [0002] When you restore a backup version from the target storage system to the source storage system or OSBR (Open Source Backup and Restore) server, any data in this backup version can be restored to the storage system or OSBR server On any directory, data can be files, directories or databases. The OSBR server is a Windows and Linux server equipped with OSBR software. It can back up the data on it to a target storage system, and restore the data from the target storage system to the OSBR server when needed. [0003] The existing backup data deletion method cannot completely delete the data snapshot. When the data snapshot is left on the storage system, the following three problems will occur. [0004] 1. Users cannot use these data snapshots left on the storage system; [0005] 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F9/44
Inventor 赵利林
Owner 江苏爱科赛尔云数据科技有限公司
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