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Method, equipment and computer program product for verifying a cache file

A technology for caching files and verifying files, which is applied in the computer field and can solve problems affecting user experience

Pending Publication Date: 2020-05-05
EMC IP HLDG CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This happens from time to time during the data backup process, which seriously affects the user experience

Method used

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  • Method, equipment and computer program product for verifying a cache file
  • Method, equipment and computer program product for verifying a cache file
  • Method, equipment and computer program product for verifying a cache file

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Embodiment Construction

[0017] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein; A more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for exemplary purposes only, and are not intended to limit the protection scope of the present disclosure.

[0018] As used herein, the term "comprise" and its variants are inclusive, ie "including but not limited to". The term "based on" is "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one further embodiment". Relevant definitions of other terms will be given in the descript...

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PUM

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Abstract

The embodiment of the invention provides a method, equipment and a computer program product for verifying a cache file. In one embodiment, a reference cache file associated with backed-up data is divided into a plurality of reference segments. For each reference segment of the plurality of reference segments, corresponding reference check information is generated, and the generated reference checkinformation is stored. In response to the data to be backed up, the stored reference check information is used to verify the cache file.

Description

technical field [0001] Embodiments of the present disclosure generally relate to computer technology, and more particularly, to methods, devices and computer program products for verifying cached files. Background technique [0002] During the data backup process, it is usually necessary to create a cache for recording the backed up data, so as to reduce network traffic and server workload. For example, a cache file can be created and stored in the backup client, which records the backed up file data. When a backup client initiates a backup job, the backup client may first check the cache file for file data that has been backed up. Since the cache file is locally stored in the client, checking the cache file can avoid sending a check request to the backup server through the network, thereby reducing network traffic. At the same time, it can avoid increasing the workload of searching the existing file data in the server. [0003] Cache files can initially be created as emp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F11/1448G06F2212/1024G06F2212/1032G06F2212/263G06F2212/311G06F12/0868G06F12/0871G06F2212/314G06F2212/282G06F2212/285G06F11/1464G06F12/0815
Inventor 陈伟王毅郑庆霄
Owner EMC IP HLDG CO LLC