1.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。
2.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。
3.NILFS is a new implementation of a log-structured file system (LFS) supporting continuous snapshotting.
NILFS是日志结构文件系统(log - structured file system)的一个新的实现，其支持连续快照。