备份设备

• Notice that in this statement , you must specify a snapshot name rather than a backup device
  请注意，必须在此语句中指定快照名称而非备份设备。
• Under the simple recovery model , a differential backup can have only one differential base
  使用sql server ，可以决定如何在备份设备上创建备份。
• This may be a system file or a disk - based logical backup device created for the database
  这可能是一个为该数据库创建的系统文件或磁盘备份设备。
• Adding more backup devices and scsi controllers , as necessary can improve performance
  添加更多的备份设备（如果必要还添加scsi控制器）可以提高性能。
• Backing up a database file consists of simply copying the data from the file to the backup devices
  备份数据库文件只需把文件中的数据复制到备份设备。
• This may be a local tape drive or a tape - based logical backup device created for the database
  这可能是一个为该数据库创建的本地磁带机或磁带备份设备。
• Data backup can be a whole database , a partial database , or a set of files or filegroups
  Microsoft sql server备份创建在备份设备上，如磁盘或磁带媒体。
• Use multiple backup devices simultaneously to allow backups to be written to all devices at the same time
  同时使用多个备份设备，使得备份可以同时写入所有设备。
• Every object in a database diagram has a set of properties that determine the definition of a database object
  使用磁带备份设备的媒体集中，媒体簇中的第一个磁带。
• Ownership and permission problems on the backup device s physical file can interfere with a backup operation
  备份设备物理文件的所有权和权限问题可能会妨碍备份操作。