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公开(公告)号:US06954835B1
公开(公告)日:2005-10-11
申请号:US10283976
申请日:2002-10-30
申请人: Douglas E. Lecrone , Paul A. Linstead , Daniel A. Murphy , Denis E. Hall , Raymond Wong , Eugene D. Pflueger , Kevin C. Heasley , Michael E. Specht , Stewart C. Woodworth, III
发明人: Douglas E. Lecrone , Paul A. Linstead , Daniel A. Murphy , Denis E. Hall , Raymond Wong , Eugene D. Pflueger , Kevin C. Heasley , Michael E. Specht , Stewart C. Woodworth, III
IPC分类号: G06F12/00
CPC分类号: G06F11/2071 , Y10S707/99953 , Y10S707/99955
摘要: A data-mirroring method in which, while an I/O process is processing a first I/O request for writing data to a first device, control is obtained from that I/O process executing on a host computer. A second I/O request, this one for writing the data to the second device, is then created. Then, control is returned to the I/O process by causing the first I/O request to be made available to a first data storage system managing the first device.
摘要翻译: 一种数据镜像方法,其中当I / O进程正在处理向第一设备写入数据的第一I / O请求时,从在主计算机上执行的I / O进程获得控制。 然后创建第二个I / O请求,这个请求将数据写入第二个设备。 然后,通过使第一I / O请求可用于管理第一设备的第一数据存储系统而将控制返回到I / O进程。
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公开(公告)号:US08589513B1
公开(公告)日:2013-11-19
申请号:US10814206
申请日:2004-03-31
CPC分类号: G06F17/30575
摘要: Described are techniques used in defining and maintaining group data used by multiple host systems. Group data is stored in a distributed fashion on one or more data storage systems. If a device of a data storage system belongs to a group, group data for that group is stored on that data storage system. Group data changes made by one host are communicated to the other hosts by accessing a common data area on each data storage system using a daemon executing on each host. Remotely mirrored groups may be defined on a remote data storage system. A remote mirror of a group includes group data modified in accordance with a point of view of the remote data storage system and a remote host.
摘要翻译: 描述了用于定义和维护多个主机系统使用的组数据的技术。 组数据以分布式方式存储在一个或多个数据存储系统上。 如果数据存储系统的设备属于一个组,则该组的组数据存储在该数据存储系统上。 通过使用在每个主机上执行的守护程序访问每个数据存储系统上的公共数据区,将一个主机进行的组数据更改传送给其他主机。 可以在远程数据存储系统上定义远程镜像组。 组的远程镜像包括根据远程数据存储系统和远程主机的观点修改的组数据。
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公开(公告)号:US08261029B1
公开(公告)日:2012-09-04
申请号:US11729164
申请日:2007-03-28
IPC分类号: G06F12/00
CPC分类号: G06F3/0613 , G06F3/0659 , G06F3/067 , G06F11/2069
摘要: A system for dynamic balancing of writes between multiple storage devices in which Remote Data Facility (RDF) groups may be assigned weights according to a dynamic priority parameter. The dynamic priority parameter provides the ability to control the weight of an asynchronous RDF group compared to that of a synchronous RDF group. Thus, when the same RDF adapter includes a mix of asynchronous RDF groups and synchronous RDF groups, a dynamic balance of the write priorities between the two group types may be obtained.
摘要翻译: 用于在多个存储设备之间动态平衡写入的系统,其中可以根据动态优先级参数为远程数据设备(RDF)组分配权重。 动态优先级参数提供了与同步RDF组相比控制异步RDF组的权重的能力。 因此,当相同的RDF适配器包括异步RDF组和同步RDF组的混合时,可以获得两组类型之间的写入优先级的动态平衡。
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公开(公告)号:US07797500B1
公开(公告)日:2010-09-14
申请号:US11726311
申请日:2007-03-21
申请人: Jeffrey A. Lewis , Anestis Panidis , Arieh Don , Pei-Ching Hwang , Michael E. Specht , Andrew Ralich
发明人: Jeffrey A. Lewis , Anestis Panidis , Arieh Don , Pei-Ching Hwang , Michael E. Specht , Andrew Ralich
IPC分类号: G06F13/00
CPC分类号: G06F13/387 , G06F3/0619 , G06F3/0644 , G06F3/0647 , G06F3/0689
摘要: Described are techniques for migrating data from a source device to a target device. A source device descriptor of the source device including source device geometry parameters and a source device partition definition structure is received. Target device geometry parameters are received. The source partition definition structure is translated and a mapped partition definition structure in accordance with the target device geometry parameters is generated. A target device descriptor including the target device geometry parameters and the mapped partition definition structure is generated. The target device descriptor is stored on the target device. Data for one or more partitions of the source device is migrated to the target device.
摘要翻译: 描述了将数据从源设备迁移到目标设备的技术。 源设备的源设备描述符包括源设备几何参数和源设备分区定义结构。 接收目标设备几何参数。 转换源分区定义结构,并生成根据目标设备几何参数的映射分区定义结构。 生成包括目标设备几何参数和映射分区定义结构的目标设备描述符。 目标设备描述符存储在目标设备上。 源设备的一个或多个分区的数据将迁移到目标设备。
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