所有磁带的分配是通过被分配给系统的区域内的一组确立的地址来完成的。

All tapes are assigned by a set of established locations within the area assigned to the system.

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它由一组驱动器组成，比如块设备(SCSI磁盘和SCSI CD - ROM)和字符设备(SCSI磁带和SCSI generic)。

It consists of a set of drivers such as the block devices (SCSI disk and SCSI CD-ROM) and the character devices (SCSI tape and SCSI generic).

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媒体转换：把数据从一贮存媒体转往另一种的情况。例如从磁碟转往磁带或从某类型磁碟组转往另一类型。

Media conversion: the converting of data from one storage medium to another, such As from disc to tape or from one type of disc pack to another.

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