有了它，你可以备份你的磁盘到网络、光学和可移动媒介上，或者是其他硬盘驱动器上。
With it you can back up your disk to network locations, optical and removable media, and other hard drives.
从灾难恢复的角度来看，可移动存储设备(磁带、磁盘、甚至usb)是最可靠的备份，因为可以将所存储的信息保存在现场以外的其他位置。
The removable storage solution (tape, disk, or even USB) is the most reliable backup from a disaster recovery standpoint, in that the storage can be kept offsite in a different location.
多数操作系统处理可移动磁盘的方式与固定磁盘几乎是一样的——格式化一个新的盘碟，同时在盘上生成一个空的文件系统。
Most OSs handle removable disks almost exactly like fixed disks - a new cartridge is formatted and an empty file system is generated on the disk.
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