专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 再颁专利

USRE37364E1 Method and system for sidefile status polling in a time zero backup copy process 失效
标题翻译：在时间零备份复制过程中进行侧文件状态轮询的方法和系统
公开(公告)号：USRE37364E1
公开(公告)日：2001-09-11
申请号：US08521712
申请日：1995-08-31
申请人： Oded Cohn , Michael Howard Hartung , William Frank Micka , John Norbert McCauley, Jr. , Claus William Mikkelsen , Kenneth Michael Nagin , Yoram Novick , Alexander Winokur
发明人： Oded Cohn , Michael Howard Hartung , William Frank Micka , John Norbert McCauley, Jr. , Claus William Mikkelsen , Kenneth Michael Nagin , Yoram Novick , Alexander Winokur
IPC分类号： G06F1100
CPC分类号： G06F11/1466 , G06F11/1458 , G06F11/1461 , G06F11/1469
摘要： A method and system are disclosed for enhanced efficiency of backup copying of designated datasets stored within a plurality of storage devices coupled to the data processing system via a storage subsystem control unit having subsystem memory therein. Application execution within the data processing system is temporarily suspended long enough to form a dataset logical-to-physical system address concordance to be utilized to administer copying of the designated dataset. Thereafter, application initiated updates to uncopied portions of the designated datasets are temporarily deferred until sidefiles of the affected portions of the designated datasets are written to subsystem memory. The updates are then written to the storage subsystem. Portions of the designated datasets are then accessed and copied from the storage subsystem on a scheduled or opportunistic basis utilizing selected data retrieval command sequences. A sidefile status query is appended to selected data retrieval command sequences and the presence of data within the subsystem memory is determined without the necessity of additional communications between the data processing system and the storage subsystem. The sidefiles are then accessed and copied. Copied portions of the designated datasets and sidefiles are then copied to alternate storage locations in a backup copy order defined by the address concordance.
摘要翻译：公开了一种方法和系统，用于通过其中具有子系统存储器的存储子系统控制单元提高存储在与数据处理系统耦合的多个存储设备中的指定数据集的备份复制效率。数据处理系统内的应用程序执行暂时被暂停，以形成用于管理指定数据集复制的数据集逻辑到物理系统地址一致性。此后，临时延迟对指定数据集的未封闭部分的应用发起的更新，直到指定数据集的受影响部分的副文件被写入子系统存储器。然后将更新写入存储子系统。然后使用所选择的数据检索命令序列，以预定的或机会的方式从存储子系统访问和复制指定数据集的一部分。辅助文件状态查询被附加到所选择的数据检索命令序列，并确定子系统存储器内的数据的存在，而不需要数据处理系统和存储子系统之间的附加通信。然后访问和复制文件。指定数据集和副文件的复制部分然后以地址一致性定义的备份复制顺序复制到备用存储位置。

IPRDB

热门服务

关于我们

友情链接

联系方式