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Method and device for reclaiming volume space

A technology of volume space and namespace, applied in the field of cloud storage, can solve problems affecting user experience and business processing performance of storage nodes, and achieve the effects of improving business processing performance, enhancing experience, and improving efficiency

Active Publication Date: 2018-06-26
INSPUR BEIJING ELECTRONICS INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The efficiency of this method of reclaiming volume space is directly proportional to the size of the volume space. If the volume is large, the long recovery time will seriously affect the user experience. At the same time, long-term concurrent deletion operations will also affect the business processing performance of the storage node.

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  • Method and device for reclaiming volume space

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. 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 arbitrarily with each other.

[0035] Based on the thin provisioning feature of virtual volumes, data objects do not occupy the entire volume space, and there is no need to traverse all data objects. In the process of volume space reclamation, it takes time to delete data objects in the volume space, that is, the overall speed of deleting data objects determines the efficiency of volume space reclamation.

[0036] In order to improve the overall speed of deleting data objects in the volume, the inventors found a method to follow the agreed storage rules for the data objects belonging to the volume, uniform...

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Abstract

The invention discloses a method and a device for recycling volume space. The method comprises: obtaining a namespace of volumes of volume spaces which needs recycling; according to the obtained namespace of the volumes, traversing data objects in the namespace of the volumes, to determine serial numbers of all data objects in the namespace of the volumes; and according to the obtained serial numbers of all data objects in the namespace of the volumes, deleting the data objects. The technical scheme improves efficiency for recycling volume space, improves business processing performance of storage nodes, and improves user experience.

Description

technical field [0001] The invention relates to the field of cloud storage, in particular to a method and device for reclaiming volume space. Background technique [0002] With the development of cloud computing and virtualization technology, the problems of traditional decentralized storage methods in data resource management and low utilization of storage resources are gradually emerging. Compared with traditional storage media, virtual block devices based on cloud storage systems support thin configuration, changeable space size, easy data backup, and convenient management, making them an ideal choice for building mass storage systems. [0003] The virtual block device is provided by the cloud storage system to the front-end in the form of a volume. After processing by relevant functional modules, it is mapped to a hard disk and other devices on the client side. Writing data to this device is to write data to the corresponding volume space in the storage pool. Write a da...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 王纪辉张在贵
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND