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Data deletion method, system and device and computer readable storage medium

A deletion method and storage medium technology, applied in the storage field, can solve the problems of efficient use of storage space and low data deletion efficiency in difficult-to-storage systems, and achieve the effects of facilitating storage space, improving data deletion efficiency, and improving storage space utilization.

Active Publication Date: 2019-07-09
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in actual application scenarios, due to the need to delete a large amount of aging data in the storage system to free up enough storage space for the storage of newly generated data, and the read and write rate of HDD is far lower than that of SSD, the storage system The data deletion efficiency is low, making it difficult to efficiently utilize the storage space of the storage system

Method used

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  • Data deletion method, system and device and computer readable storage medium
  • Data deletion method, system and device and computer readable storage medium
  • Data deletion method, system and device and computer readable storage medium

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Embodiment Construction

[0043] The core of the application is to provide a data deletion method, which can effectively improve the data deletion efficiency of the storage system, and further improve the utilization rate of the system storage space; another core of the application is to provide a data deletion system, The device and the computer-readable storage medium also have the above beneficial effects.

[0044] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope o...

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Abstract

The invention discloses a data deletion method. The method comprises the steps of determining an HDD where to-be-deleted data is located according to a received deletion instruction; migrating journal and omap corresponding to the HDD to an SSD through a preset migration script; and deleting the to-be-deleted data in the journal and the omap through the SSD. Because SSD read-write efficiency is far higher than the feature of the HDD, journal and omap of stored data of the HDD are migrated to the SSD through the preset migration script. Through the SSD, the deletion of the stored data in thejournal and the omap is realized. The data deletion efficiency of a storage system is greatly improved. The storage space can be more efficiently vacated for storing new data. the storage space of thesystem is conveniently integrated and utilized, and the utilization rate of the storage space is effectively improved. The invention further discloses a data deletion system and device and a computerreadable storage medium which all have the above beneficial effects.

Description

technical field [0001] The present application relates to the field of storage technologies, in particular to a data deletion method, and also to a data deletion system, device, and computer-readable storage medium. Background technique [0002] With the continuous development of information technology, data is gradually valued as a valuable resource, and data storage, as one of the core elements of data resources, has also ushered in a period of rapid development. For storage systems, storage media that can be used to store data There are various types, such as disk, hard disk, etc. [0003] Generally speaking, a storage system corresponds to multiple OSDs (Object Storage Devices). Each OSD corresponds to a set of journals and omaps for storing data. Each OSD corresponds to a hard disk. The hard disk can be an SSD (Solid State Drives, solid-state hard disk), or HDD (Hard Disk Drive, mechanical hard disk). For a storage system, the number of HDDs is generally much larger t...

Claims

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Application Information

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IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/0652G06F3/0685
Inventor 刘杰安祥文赵赞罗浩
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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