Linux LVM快照的相关内容

Linux LVM之快照

快照其实就是原数据的另一个访问路径，就是指向原数据的指针。快照卷的大小跟原卷数据的该变量和保存快照的时间有关。快照只能在本分区内有效。因为快照类似于inode，不能指向本分区之外的其他分区数据-s 跟上需要进行快照的lv 必选参数-n 指定快照卷的名称必选项-L 指定快照卷的大小 -l(L) 指定...

linux中lvm的快照功能问题.

既然说LVM快照是通过把文件系统的改变记录到一个快照分区，而不是对这个分区做镜像。且对快照区的任何操作不会影响源分区。那么问题：1：我们在快照分区中修改一个已存在的文件时，系统是不是先把这个文件拷贝到快照区，然后进行修改？2：我们在快照分区中删除一个文件时，只是删除保存在快照区的节点信息？

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更新时间 2023-01-13 13:19:21

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