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2. 发明授权

US06804690B1 Method for physical backup in data logical order 有权
标题翻译：以数据逻辑顺序进行物理备份的方法
公开(公告)号：US06804690B1
公开(公告)日：2004-10-12
申请号：US09749333
申请日：2000-12-27
申请人： David C. Dysert , Robert A. Boudrie , Thomas L. Dings , Sujit Suresh Naik , Neil F. Schutzman
发明人： David C. Dysert , Robert A. Boudrie , Thomas L. Dings , Sujit Suresh Naik , Neil F. Schutzman
IPC分类号： G06F1200
CPC分类号： G06F11/1466 , G06F11/1458 , G06F11/1469 , G06F11/2056 , Y10S707/99955
摘要： A system for providing high speed external backup and restoration of data in a data storage system. Individual data objects are backed up in logical order on backup media such as magnetic tape so that they may be retrieved individually. Minimized descriptions of backed up data are transmitted between the host and backup systems to control high speed transfer of data between data servers and backup devices on a separate data channel. The descriptions are manipulated by the backup system to comply with formats of any number of host systems and data storage systems and to efficiently map the backed up data onto the backup devices. The system also provides for restoration of data to the data storage system by using a host system to pre-allocate space for the restored data, obtaining mapping information for the allocated space from the host system, and then directly writing the restored data into the allocated space, based on the mapping information.
摘要翻译：一种用于在数据存储系统中提供高速外部备份和恢复数据的系统。单个数据对象按照逻辑顺序在备份介质（如磁带）上进行备份，以便它们可以单独检索。备份数据的最小化描述在主机和备份系统之间传输，以控制数据服务器和备份设备之间的数据在单独数据通道上的高速传输。这些描述由备份系统操纵，以符合任何数量的主机系统和数据存储系统的格式，并有效地将备份的数据映射到备份设备上。该系统还通过使用主机系统为恢复的数据预先分配空间，为数据存储系统提供数据恢复，从主机系统获取分配的空间的映射信息，然后将恢复的数据直接写入分配的空间，基于映射信息。

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