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1. 发明授权

US07779291B2 Four site triangular asynchronous replication 有权
标题翻译：四站三角异步复制
公开(公告)号：US07779291B2
公开(公告)日：2010-08-17
申请号：US11647920
申请日：2006-12-29
申请人： Benjamin W. Yoder , Mark J. Halstead , Douglas E. Lecrone , Marik Marshak , Brett A. Quinn , Mike Specht , Gary H. Cox
发明人： Benjamin W. Yoder , Mark J. Halstead , Douglas E. Lecrone , Marik Marshak , Brett A. Quinn , Mike Specht , Gary H. Cox
IPC分类号： G06F11/00
CPC分类号： G06F11/2058 , G06F11/2064 , G06F11/2069 , G06F11/2074 , G06F11/2076 , H04L67/1095 , H04L69/40
摘要： Storing recovery data for a data center includes providing synchronous data from the data center to a local destination, providing chunks of data from the local destination to a first remote destination, different from the first remote destination, and providing chunks of data from the data center to a second remote destination. At least some of the destinations may maintain a plurality of maps, where each of the maps associates synchronous data being provided to the local destination with a specific chunk of data. In response to receiving an indicator in connection with creation of a new chunk of data, the at least some of the destinations that maintain a plurality of maps may point to a new map. There may be two maps or more than two maps.
摘要翻译：存储用于数据中心的恢复数据包括从数据中心向本地目的地提供同步数据，将来自本地目的地的数据块提供给与第一远程目的地不同的第一远程目的地，以及从数据中心提供数据块到第二个远程目的地。至少一些目的地可以维护多个地图，其中每个地图将提供给本地目的地的同步数据与特定数据块相关联。响应于接收到与创建新的数据块有关的指示符，维护多个地图的至少一些目的地可以指向新的地图。可能有两张地图或两张以上的地图。

2. 发明授权

US07409470B2 Determining configuration data in connection with dynamic RDF 有权
标题翻译：确定与动态RDF相关的配置数据
公开(公告)号：US07409470B2
公开(公告)日：2008-08-05
申请号：US10995810
申请日：2004-11-23
申请人： Mark J. Halstead , Dan Arnon , David Meiri
发明人： Mark J. Halstead , Dan Arnon , David Meiri
IPC分类号： G06F3/00 , G06F12/00 , G06F13/00
CPC分类号： G06F11/1666 , G06F3/0601 , G06F11/20 , G06F11/2069 , G06F2003/0697 , H04L12/56 , Y10S707/99952 , Y10S707/99953
摘要： Dynamically creating a communication path between first and second storage devices, includes creating a connection to a source volume on the first storage device and indicating that the source volume is not ready to transmit data on the communication path, after successfully creating the connection to the source volume, creating a connection to a destination volume on the second storage device and initially indicating that portions of one of: the destination volume and the source volume do not contain valid copies of data, where the destination volume accepts data from the source volume, and after successfully creating the connections to the source and destination volumes, indicating that the source volume is ready to transmit data on the communication path. Dynamically creating a communication path between first and second storage devices, may also include creating at least one of: the source volume and the destination volume. Creating the connection to the source volume may include modifying a table containing configuration information for the first storage device. Creating the connection to the destination volume may include modifying a table containing configuration information for the second storage device.
摘要翻译：在第一和第二存储设备之间动态地创建通信路径，包括在成功创建到源的连接之后创建到第一存储设备上的源卷的连接并且指示源卷未准备好在通信路径上传输数据创建与第二存储设备上的目的地卷的连接，并且最初指示目的卷和源卷之一的部分不包含数据的有效副本，其中目的地卷接收来自源卷的数据，以及在成功创建到源卷和目标卷的连接后，指示源卷准备好在通信路径上传输数据。在第一和第二存储设备之间动态地创建通信路径还可以包括创建源卷和目的地卷中的至少一个。创建与源卷的连接可能包括修改包含第一个存储设备的配置信息的表。创建到目标卷的连接可能包括修改包含第二个存储设备的配置信息的表。

3. 发明授权

US07386668B2 Handling data writes copied from a remote data storage device 有权
标题翻译：处理从远程数据存储设备复制的数据写入
公开(公告)号：US07386668B2
公开(公告)日：2008-06-10
申请号：US11503333
申请日：2006-08-11
申请人： Vadim Longinov , Benjamin W. Yoder , Mark J. Halstead , David Meiri
发明人： Vadim Longinov , Benjamin W. Yoder , Mark J. Halstead , David Meiri
IPC分类号： G06F13/00
CPC分类号： G06F11/2064 , G06F11/2071 , G06F11/2074 , G06F11/2082 , G06F12/0804 , G06F12/0866 , G06F12/0868 , G06F12/0871 , G06F2201/82 , G06F2212/284
摘要： Handling ordered writes to a data storage device includes receiving a first chunk of data into slots of a cache of the data storage device and using a hash table to provide a correlation between cache slots containing data from the first chunk of data and locations of a logical storage device of the data storage device. Handling ordered writes may also include maintaining a circularly linked list of pointers to cache slots containing the first chunk of data. Handling ordered writes may also include receiving a second chunk of data into slots of the cache of the data storage device and receiving a message indicating that all data corresponding to the first chunk of data has been transferred to the data storage device. Handling ordered writes may also include, in response to receiving the message, storing data from the first chunk on to the logical storage device. Handling ordered writes may also include using a hash table to provide a correlation between cache slots containing data from the second chunk of data and locations of a logical storage device of the data storage device.
摘要翻译：处理对数据存储设备的有序写入包括将第一块数据接收到数据存储设备的高速缓存的时隙中，并且使用散列表来提供包含来自第一数据块和逻辑的位置的数据的高速缓存时隙之间的相关性存储设备的数据存储设备。处理有序写入还可以包括将包含第一数据块的缓存槽的指针的循环链接列表保持。处理有序的写入还可以包括将第二块数据接收到数据存储设备的高速缓存的时隙中，并且接收指示对应于第一块数据的所有数据已被传送到数据存储设备的消息。处理有序写入还可以包括响应于接收到消息，将来自第一块的数据存储到逻辑存储设备。处理有序写入还可以包括使用哈希表来提供包含来自第二数据块的数据的高速缓存时隙与数据存储设备的逻辑存储设备的位置之间的相关性。

4. 发明授权

US07174423B2 Remote mirroring in a switched environment 有权
标题翻译：在交换环境中进行远程镜像
公开(公告)号：US07174423B2
公开(公告)日：2007-02-06
申请号：US11183461
申请日：2005-07-18
申请人： David Meiri , Dan Arnon , Mark J. Halstead , Peter Kamvysselisi
发明人： David Meiri , Dan Arnon , Mark J. Halstead , Peter Kamvysselisi
IPC分类号： G06F11/20
CPC分类号： H04L67/1095 , G06F11/20 , G06F11/201 , G06F11/2071 , H04L67/1097
摘要： A mechanism to support remote mirroring of storage devices by data storage systems in a one-to-many switched environment. Each data storage system includes a disk director that is adapted to control at least one device group that is supported in a mirrored configuration with a corresponding device group controlled by one of the other data storage systems. For each device group and corresponding device group, there are first ports associated with the device group and second ports associated with the corresponding device group. A switch element is adapted to connect one of the first ports to at least one of the second ports so that data may be exchanged between the ports for each device group and corresponding device group. The disk director selects which first port is to be connected to which second port via the switch element in the establishment of a logical link. Thus, each port connected to the switch is capable of achieving multiple connections to multiple destinations for increased connectivity, redundancy and performance (load balance) without additional hardware.
摘要翻译：支持数据存储系统在一对多交换环境中远程镜像存储设备的机制。每个数据存储系统包括磁盘引导器，该磁盘引导器适于控制被镜像配置中支持的至少一个设备组与由其他数据存储系统之一控制的相应设备组。对于每个设备组和相应的设备组，都有与设备组相关联的第一个端口和与相应设备组相关联的第二个端口。开关元件适于将第一端口中的一个连接到至少一个第二端口，使得可以在用于每个设备组和对应的设备组的端口之间交换数据。在建立逻辑链路时，磁盘控制器通过交换机元件选择要连接到哪个第二端口的第一端口。因此，连接到交换机的每个端口能够实现多个连接到多个目的地，以增加连接性，冗余和性能（负载平衡），而无需额外的硬件。

5. 发明授权

US07114033B2 Handling data writes copied from a remote data storage device 有权
标题翻译：处理从远程数据存储设备复制的数据写入
公开(公告)号：US07114033B2
公开(公告)日：2006-09-26
申请号：US10956493
申请日：2004-10-01
申请人： Vadim Longinov , Benjamin W. Yoder , Mark J. Halstead , David Meiri
发明人： Vadim Longinov , Benjamin W. Yoder , Mark J. Halstead , David Meiri
IPC分类号： G06F12/00
CPC分类号： G06F11/2064 , G06F11/2071 , G06F11/2074 , G06F11/2082 , G06F12/0804 , G06F12/0866 , G06F12/0868 , G06F12/0871 , G06F2201/82 , G06F2212/284
摘要： Handling ordered writes to a data storage device includes receiving a first chunk of data into slots of a cache of the data storage device and using a hash table to provide a correlation between cache slots containing data from the first chunk of data and locations of a logical storage device of the data storage device. Handling ordered writes may also include maintaining a circularly linked list of pointers to cache slots containing the first chunk of data. Handling ordered writes may also include receiving a second chunk of data into slots of the cache of the data storage device and receiving a message indicating that all data corresponding to the first chunk of data has been transferred to the data storage device. Handling ordered writes may also include, in response to receiving the message, storing data from the first chunk on to the logical storage device. Handling ordered writes may also include using a hash table to provide a correlation between cache slots containing data from the second chunk of data and locations of a logical storage device of the data storage device.
摘要翻译：处理对数据存储设备的有序写入包括将第一块数据接收到数据存储设备的高速缓存的时隙中，并且使用散列表来提供包含来自第一数据块和逻辑的位置的数据的高速缓存时隙之间的相关性存储设备的数据存储设备。处理有序写入还可以包括将包含第一数据块的缓存槽的指针的循环链接列表保持。处理有序的写入还可以包括将第二块数据接收到数据存储设备的高速缓存的时隙中，并且接收指示对应于第一块数据的所有数据已被传送到数据存储设备的消息。处理有序写入还可以包括响应于接收到消息，将来自第一块的数据存储到逻辑存储设备。处理有序写入还可以包括使用哈希表来提供包含来自第二数据块的数据的高速缓存时隙与数据存储设备的逻辑存储设备的位置之间的相关性。

6. 发明授权

US07088703B2 Multipath multihop remote data facility 有权
标题翻译：多路径多跳远程数据设备
公开(公告)号：US07088703B2
公开(公告)日：2006-08-08
申请号：US09814642
申请日：2001-03-22
申请人： Jeremy J. O'Hare , Mark J. Halstead
发明人： Jeremy J. O'Hare , Mark J. Halstead
IPC分类号： H04L12/28
CPC分类号： G06F11/2012 , G06F3/0605 , G06F3/0635 , G06F3/0659 , G06F3/067 , G06F11/201
摘要： A computer system may include one or more hosts and a plurality of data storage devices for providing multihop system calls. The data storage devices are interconnected and also connected to the one or more hosts. Each data storage device classifies a data operation as a system call, a remote system call, or a multihop system call. Also described is a multipath multihop system call in which one or more communication paths may be selected using predetermined and/or dynamic communication path selection techniques. The number of communication paths determined may be in accordance with parameters that are included in a multipath multihop system call, tunable system parameters, or a combination of the foregoing.
摘要翻译：计算机系统可以包括用于提供多跳系统呼叫的一个或多个主机和多个数据存储设备。数据存储设备互连并且也连接到一个或多个主机。每个数据存储设备将数据操作分类为系统调用，远程系统调用或多跳系统调用。还描述了多径多跳系统调用，其中可以使用预定和/或动态通信路径选择技术来选择一个或多个通信路径。确定的通信路径的数量可以根据包括在多径多跳系统呼叫，可调系统参数或前述的组合中的参数。

7. 发明授权

US06976139B2 Reversing a communication path between storage devices 有权
标题翻译：反转存储设备之间的通信路径
公开(公告)号：US06976139B2
公开(公告)日：2005-12-13
申请号：US09998683
申请日：2001-11-30
申请人： Mark J. Halstead , Dan Arnon , David Meiri
发明人： Mark J. Halstead , Dan Arnon , David Meiri
IPC分类号： G06F3/06 , G06F11/20 , G06F12/00
CPC分类号： G06F3/0665 , G06F3/0619 , G06F3/065 , G06F3/0689 , G06F11/1666 , G06F11/20 , G06F11/2069 , Y10S707/99953 , Y10S707/99954
摘要： Reversing a communication path between a first volume on a first storage device and a second volume on a second storage device includes suspending communication between the first and second volumes while maintaining operations for other volumes of the storage devices, causing the first volume to change from a source volume to a destination volume without destroying the first volume, causing the second volume to change from a destination volume to a source volume without destroying the second volume, and resuming communication between the first and second volumes. Causing the first volume to change from a source volume to a destination volume may include modifying a table of the first storage device. Causing the second volume to change from a source volume to a destination volume may include modifying a table of the second storage device.
摘要翻译：将第一存储设备上的第一卷和第二存储设备上的第二卷之间的通信路径反转包括暂停在第一和第二卷之间的通信，同时维护其他卷的存储设备的操作，从而使第一卷从源卷到目标卷，而不会破坏第一个卷，导致第二个卷从目标卷更改为源卷，而不会破坏第二个卷，并恢复第一个和第二个卷之间的通信。使第一卷从源卷更改为目标卷可能包括修改第一个存储设备的表。使第二卷从源卷更改为目的地卷可能包括修改第二个存储设备的表。

8. 发明授权

US06938122B2 Remote mirroring in a switched environment 有权
标题翻译：在交换环境中进行远程镜像
公开(公告)号：US06938122B2
公开(公告)日：2005-08-30
申请号：US09767773
申请日：2001-01-23
申请人： David Meiri , Dan Arnon , Mark J. Halstead , Peter Kamvysselis
发明人： David Meiri , Dan Arnon , Mark J. Halstead , Peter Kamvysselis
IPC分类号： G06F13/14 , G06F3/06 , G06F11/20 , G06F12/00
CPC分类号： H04L67/1095 , G06F11/20 , G06F11/201 , G06F11/2071 , H04L67/1097
摘要： A mechanism to support remote mirroring of storage devices by data storage systems in a one-to-many switched environment. Each data storage system includes a disk director that is adapted to control at least one device group that is supported in a mirrored configuration with a corresponding device group controlled by one of the other data storage systems. For each device group and corresponding device group, there are first ports associated with the device group and second ports associated with the corresponding device group. A switch element is adapted to connect one of the first ports to at least one of the second ports so that data may be exchanged between the ports for each device group and corresponding device group. The disk director selects which first port is to be connected to which second port via the switch element in the establishment of a logical link. Thus, each port connected to the switch is capable of achieving multiple connections to multiple destinations for increased connectivity, redundancy and performance (load balance) without additional hardware.
摘要翻译：支持数据存储系统在一对多交换环境中远程镜像存储设备的机制。每个数据存储系统包括磁盘引导器，该磁盘引导器适于控制被镜像配置中支持的至少一个设备组与由其他数据存储系统之一控制的相应设备组。对于每个设备组和相应的设备组，都有与设备组相关联的第一个端口和与相应设备组相关联的第二个端口。开关元件适于将第一端口中的一个连接到至少一个第二端口，使得可以在用于每个设备组和对应的设备组的端口之间交换数据。在建立逻辑链路时，磁盘控制器通过交换机元件选择要连接到哪个第二端口的第一端口。因此，连接到交换机的每个端口能够实现多个连接到多个目的地，以增加连接性，冗余和性能（负载平衡），而无需额外的硬件。

9. 发明授权

US08990453B1 Adaptive and optimized flow control mechanism 有权
标题翻译：自适应和优化的流量控制机制
公开(公告)号：US08990453B1
公开(公告)日：2015-03-24
申请号：US13715222
申请日：2012-12-14
申请人： Bhaskar Bora , Mark J. Halstead , Benoit J. Merlet , Dharmesh Thakkar
发明人： Bhaskar Bora , Mark J. Halstead , Benoit J. Merlet , Dharmesh Thakkar
IPC分类号： G06F3/00 , G06F3/06
CPC分类号： G06F3/061 , G06F3/0629 , G06F3/0653 , G06F3/0659 , G06F3/067 , G06F3/0683
摘要： Described are techniques for controlling a flow of I/O requests. R is received denoting a current maximum number of outstanding I/O requests allowed to be issued by a first data storage system to a second data storage system over a path. Assessment processing is performed to obtain a first performance value, a second performance value, and a third performance value, respectively, when the maximum number of outstanding I/O requests allowed to be issued by the first data storage system to the second data storage system over the path is R+delta1, R, and R−delta2 (delta1 and delta 2 are positive integer values). It is determined whether to update R in accordance with criteria including the first performance value, the second performance value and the third performance value.
摘要翻译：描述了用于控制I / O请求流的技术。 R被接收，表示允许第一数据存储系统允许通过路径向第二数据存储系统发出的未完成的I / O请求的当前最大数目。当第一数据存储系统允许向第二数据存储系统发出的最大未完成I / O请求数量分别执行评估处理以获得第一性能值，第二性能值和第三性能值在路径上是R + delta1，R和R-delta2（delta1和delta2是正整数）。确定是否根据包括第一性能值，第二性能值和第三性能值的标准更新R。

10. 发明授权

US08261029B1 Dynamic balancing of writes between multiple storage devices 有权
标题翻译：动态平衡多个存储设备之间的写入
公开(公告)号：US08261029B1
公开(公告)日：2012-09-04
申请号：US11729164
申请日：2007-03-28
申请人： Marik Marshak , Mark J. Halstead , Michael E. Specht
发明人： Marik Marshak , Mark J. Halstead , Michael E. Specht
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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