You may be familiar with snapshotting from Linux LVM; using snapshots, you can create an unchanging "view" of an existing filesystem, which comes in handy for backups.
您可能熟悉LinuxLVM的快照；使用快照，您可以创建现有文件系统的不变“视图”，这对于备份很方便。
You may be familiar with snapshotting from Linux LVM; using snapshots, you can create an unchanging "view" of an existing filesystem, which comes in handy for backups.
您可能熟悉LinuxLVM的快照；使用快照，您可以创建现有文件系统的不变“视图”，这对于备份很方便。
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