And, because the block-level backup may provide backup with less granularity, so with the comparison of the file-level backup, the block-level backup has better improvement at two aspects of backup performance and space use.
同时,块级备份能提供更细粒度的备份,与文件级备份相比,在备份性能和空间利用率上都得到了很大提高。
参考来源 - 蓝鲸备份系统 in C·2,447,543篇论文数据，部分数据来源于NoteExpress
The update file is reset whenever a level 0 backup is run.
这个更新文件将在每次执行 0 级备份时被重设。
A split mirror initialized as mirror can be used as a system level backup, allowing the administrator to perform a quick file system level recovery of the database.
初始化为镜像的分割镜像可以用作系统级备份，从而使管理员可以执行快速的文件系统级数据库恢复。
The fine-grained snapshot at the file level provides a fast and flexible solution to enterprises data backup and recovery.
对于企业数据的备份与恢复，文件级的细粒度快照提供了一种快速、灵活的解决方法。
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