Data backup method and device

The invention provides a data backup method and device. According to the method, backup is carried out on disk blocks where index nodes of data under appointed catalogs and disk blocks where data is located, so as to filter the disk blocks which do not need backup, thereby decreasing the backup data...

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Bibliographic Details
Main Author ZHONG JINMING
Format Patent
LanguageChinese
English
Published 10.11.2017
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention provides a data backup method and device. According to the method, backup is carried out on disk blocks where index nodes of data under appointed catalogs and disk blocks where data is located, so as to filter the disk blocks which do not need backup, thereby decreasing the backup data volume, enhance the backup efficiency and improve the effective utilization rate of the disks. 本发明提供种数据备份方法及装置，该方法通过对指定目录下数据的索引节点所在磁盘块以及数据所在磁盘块进行备份，从而过滤掉不需要备份的磁盘块，减少备份数据量，提升备份效率，提高磁盘有效利用率。
Bibliography:Application Number: CN201611033350