Storage space recovery method, device and equipment and computer storage medium

A technology of storage space and recovery method, applied in the field of equipment and computer storage media, storage space recovery method, and device, capable of solving problems such as failure of space recovery

Pending Publication Date: 2021-01-01
北京浪潮数据技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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However, during the process, there will

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  • Storage space recovery method, device and equipment and computer storage medium
  • Storage space recovery method, device and equipment and computer storage medium
  • Storage space recovery method, device and equipment and computer storage medium

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Embodiment Construction

[0043]The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

[0044]With the advent of the big data era, users' demands for storage space continue to increase. As a large amount of data is written into the storage space, the disk storage space will be exhausted. In order to ensure that new data can be stored, the stored data needs to be recycled. For example, in an all-flash storage system, a thin provisioning module can be set up. With the help of the thin provisioning module, storage space can be allocated to users fro...

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Abstract

The invention discloses a storage space recovery method, device and equipment and a computer medium, which are applied to an all-flash storage system and used for acquiring a target Unmap IO representing recovery of a simplified volume storage space. The method comprises steps of splitting the target Unmap IO according to a preset Pio value to obtain a split Unmap IO, and ensuring that the split Unmap IO carries a preset mark; aggregating the split Unmap IO according to a preset Vio value to obtain an aggregated Unmap IO, and ensuring that the aggregated Unmap IO carries a preset mark; recovering the simplified volume storage space based on the aggregated Unmap IO and a preset mark, wherein the preset mark comprises a mark for representing storage space recovery. According to the method and the device, the target Unmap IO can be prevented from losing a mark representing storage space recovery after being split and aggregated, so that the recovery success rate is improved.

Description

Technical field[0001]This application relates to the field of data processing technology, and more specifically, to a storage space recovery method, device, equipment, and computer storage medium.Background technique[0002]With the advent of the big data era, users' demands for storage space continue to increase. As a large amount of data is written into the storage space, the disk storage space will be exhausted. In order to ensure that new data can be stored, the stored data needs to be recycled. For example, in an all-flash storage system, a thin provisioning module can be set up. With the help of the thin provisioning module, storage space can be allocated to users from a thin storage pool on demand. When files in a thin volume need to be deleted, space recovery can be used The function realizes the repeated use of storage space. However, during this process, space reclamation may fail.[0003]In summary, how to improve the success rate of recovery of all-flash storage space is cur...

Claims

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Application Information

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IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/0629G06F3/0652
Inventor 王玉梁
Owner 北京浪潮数据技术有限公司
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