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1.发明授权Using the change-recording feature for point-in-time-copy technology to perform more effective backups 有权使用时间点复制技术的更改记录功能来执行更有效的备份公开(公告)号：US08433867B2
公开(公告)日：2013-04-30
申请号：US12684937
申请日：2010-01-09
IPC分类号： G06F12/00
CPC分类号： G06F11/1451 , G06F11/201 , G06F11/2089 , G06F2201/84
摘要： A method for using a change-recording feature to perform more effective backups includes generating an initial point-in-time copy of source data residing in a storage device. The method may then perform an initial backup of the initial point-in-time copy. As changes are made to the source data, the method may record changes made to the source data after the initial point-in-time copy is generated. These changes may be stored as incremental change data. At some point, the initial point-in-time copy may be updated using the incremental change data. In order to perform an incremental backup of the updated point-in-time copy, the method may query the incremental change data to determine which changes were used to update the point-in-time copy. The method may then perform an incremental backup of the updated point-in-time copy by backing up the changes designated in the incremental change data.
摘要翻译： 使用改变记录特征来执行更有效的备份的方法包括生成驻留在存储设备中的源数据的初始时间点副本。 该方法然后可以执行初始时间点副本的初始备份。 当对源数据进行更改时，该方法可以在生成初始时间点副本之后记录对源数据所做的更改。 这些更改可以存储为增量更改数据。 在某些时候，可以使用增量更改数据更新初始时间点副本。 为了对更新的时间点副本执行增量备份，该方法可以查询增量更改数据，以确定哪些更改用于更新时间点副本。 然后，该方法可以通过备份增量更改数据中指定的更改来执行更新的时间点副本的增量备份。
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公开(公告)号：US07689743B2
公开(公告)日：2010-03-30
申请号：US11613880
申请日：2006-12-20
CPC分类号： H04L67/1095 , G06F3/0613 , G06F3/065 , G06F3/0659 , G06F3/0683 , H04L67/1097
摘要： An apparatus, system, and method are disclosed for copying data. The present invention includes a data storage subsystem that supports fast replication and a host system that communicates a fast replication request to the data storage subsystem, estimates an expected wait time for a pending fast replication operation if the fast replication request is not granted, awaits the expiration of the wait time, communicates an additional fast replication request to the data storage subsystem, and records the data as moved if the additional fast replication is granted. In certain embodiments, the host system moves the data via conventional I/O operations if the expected wait time exceeds an expected duration for the conventional I/O operations.
摘要翻译： 公开了用于复制数据的装置，系统和方法。 本发明包括支持快速复制的数据存储子系统和将快速复制请求传送到数据存储子系统的主机系统，如果未授予快速复制请求则估计未决快速复制操作的预期等待时间，等待 等待时间到期，向数据存储子系统传送额外的快速复制请求，并且如果允许额外的快速复制，则将数据记录为移动。 在某些实施例中，如果预期等待时间超过常规I / O操作的预期持续时间，则主机系统通过常规I / O操作来移动数据。
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公开(公告)号：US20080154968A1
公开(公告)日：2008-06-26
申请号：US11613880
申请日：2006-12-20
IPC分类号： G06F17/30
CPC分类号： H04L67/1095 , G06F3/0613 , G06F3/065 , G06F3/0659 , G06F3/0683 , H04L67/1097
摘要： An apparatus, system, and method are disclosed for copying data. The present invention includes a data storage subsystem that supports fast replication and a host system that communicates a fast replication request to the data storage subsystem, estimates an expected wait time for a pending fast replication operation if the fast replication request is not granted, awaits the expiration of the wait time, communicates an additional fast replication request to the data storage subsystem, and records the data as moved if the additional fast replication is granted. In certain embodiments, the host system moves the data via conventional I/O operations if the expected wait time exceeds an expected duration for the conventional I/O operations.
摘要翻译： 公开了用于复制数据的装置，系统和方法。 本发明包括支持快速复制的数据存储子系统和将快速复制请求传送到数据存储子系统的主机系统，如果未授予快速复制请求则估计未决快速复制操作的预期等待时间，等待 等待时间到期，向数据存储子系统传送额外的快速复制请求，并且如果允许额外的快速复制，则将数据记录为移动。 在某些实施例中，如果预期等待时间超过常规I / O操作的预期持续时间，则主机系统通过常规I / O操作来移动数据。
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公开(公告)号：US09032169B2
公开(公告)日：2015-05-12
申请号：US13479584
申请日：2012-05-24
IPC分类号： G06F11/14
CPC分类号： G06F11/1448 , G06F3/061 , G06F3/065 , G06F3/067 , G06F2201/84
摘要： A method, system and computer-usable medium which provides a format in which data is written to a dump data set to allow use of Fast Replication technology for both backing up and restoring of both datasets and volumes. Such a format allows any data that can be captured at a track level to be written to the dump data set via Fast Replication. When using this methodology of backing up and restoring, backups should be made to devices that support Fast Replication technology and restoration of the data should be to devices which are capable of being the target of a Fast Replication for that backup device.
摘要翻译： 一种方法，系统和计算机可用介质，其提供将数据写入转储数据集的格式，以允许使用快速复制技术来备份和恢复两个数据集和卷。 这种格式允许通过快速复制将可以在轨道级捕获的任何数据写入转储数据集。 当使用这种备份和恢复方法时，应对支持快速复制技术的设备进行备份，并且恢复数据应该是能够成为该备份设备的快速复制目标的设备。
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