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1. 发明授权

US07917903B2 Quality of service controller and method for a data storage system 有权
标题翻译：数据存储系统的服务质量控制器和方法
公开(公告)号：US07917903B2
公开(公告)日：2011-03-29
申请号：US10400556
申请日：2003-03-27
申请人： Christopher Lumb , Arif Merchant , Guillermo Alvarez
发明人： Christopher Lumb , Arif Merchant , Guillermo Alvarez
IPC分类号： G06F9/46
CPC分类号： G06F9/4887
摘要： A quality-of-service controller and related method for a data storage system. Requests for each of a plurality of storage system workloads are prioritized. The requests are selectively forwarded to a storage device queue according to their priorities so as to maintain the device queue at a target queue depth. The target queue depth is adjusted response to a latency value for the requests wherein the latency value is computed based on a difference between an arrival time and a completion time of the requests for each workload. Prioritizing the requests may be accomplished by computing a target deadline for a request based on a monitored arrival time of the request and a target latency for its workload. To reduce latencies, the target queue depth may be reduced when the target latency for a workload is less than its computed latency value. To increase throughput, the target queue depth may be increased when the target latency for each workload is greater than each computed latency value.
摘要翻译：一种数据存储系统的服务质量控制器和相关方法。优先考虑多个存储系统工作负载中的每一个的请求。这些请求根据其优先级选择性地转发到存储设备队列，以便将设备队列保持在目标队列深度。根据对每个工作负载的请求的到达时间和完成时间之间的差值来计算等待时间值，从而对目标队列深度进行调整响应。可以通过基于所请求的监视到达时间和其工作负载的目标延迟来计算请求的目标截止时间来实现优先级请求。为了减少延迟，当工作负载的目标延迟小于其计算的延迟值时，可能会减少目标队列深度。为了增加吞吐量，当每个工作负载的目标延迟大于每个计算的等待时间值时，可能会增加目标队列深度。

2. 发明授权

US07643983B2 Data storage system emulation 有权
标题翻译：数据存储系统仿真
公开(公告)号：US07643983B2
公开(公告)日：2010-01-05
申请号：US10400232
申请日：2003-03-27
申请人： Christopher Lumb , Arif Merchant , Guillermo Alvarez
发明人： Christopher Lumb , Arif Merchant , Guillermo Alvarez
IPC分类号： G06F9/455 , G06F13/10 , G06F12/00 , G06F17/30
CPC分类号： G06F13/105
摘要： A technique for emulation of a data storage system. The invention allows the level of services to be provided by a data storage system to be specified in terms of the level of services provided by another storage system. In one aspect, a performance characterization of a data storage device to be emulated is obtained (e.g., by experimental techniques). A specification of a workload is also obtained that includes a specification of a plurality of data stores for the workload. The data stores are assigned to an emulation data storage device according to the performance characterization and according to the specification of the workload such that sufficient resources of the emulation data storage device are allocated to the workload to meet the performance characterization of the data storage device to be emulated. The emulation data storage device is then operated under the workload. Quality-of-service (QoS) control may be performed so as to provide a degree of performance isolation among the workloads.
摘要翻译：用于仿真数据存储系统的技术。本发明允许由数据存储系统提供的服务级别根据由另一个存储系统提供的服务级别来指定。在一个方面，获得待仿真的数据存储设备的性能表征（例如，通过实验技术）。还获得了包括用于工作负载的多个数据存储的规范的工作负载的规范。根据性能表征和根据工作负载的规格将数据存储设备分配给仿真数据存储设备，使得将仿真数据存储设备的足够资源分配给工作负载以满足数据存储设备的性能表征被仿效。仿真数据存储设备然后在工作负载下运行。可以执行服务质量（QoS）控制，以便在工作负载之间提供一定程度的性能隔离。

3. 发明授权

US07979632B2 Storage system including a fast storage device for storing redundant data 有权
标题翻译：存储系统包括用于存储冗余数据的快速存储设备
公开(公告)号：US07979632B2
公开(公告)日：2011-07-12
申请号：US10235924
申请日：2002-09-06
申请人： Guillermo Alvarez , Mustafa Uysal , Arif Merchant , John Wilkes
发明人： Guillermo Alvarez , Mustafa Uysal , Arif Merchant , John Wilkes
IPC分类号： G06F12/00
CPC分类号： G06F11/1076 , G06F11/2087 , G06F2211/1019
摘要： A computer storage system includes a controller, a first storage device and a second storage device including at least one fast storage device. The controller is configured to perform data operations. The first storage device stores data, and the second storage device stores data redundant to the data stored in the first storage device.
摘要翻译：计算机存储系统包括控制器，第一存储设备和包括至少一个快速存储设备的第二存储设备。控制器被配置为执行数据操作。第一存储装置存储数据，第二存储装置将数据冗余地存储到存储在第一存储装置中的数据。

4. 发明授权

US06922752B2 Storage system using fast storage devices for storing redundant data 有权
标题翻译：存储系统使用快速存储设备存储冗余数据
公开(公告)号：US06922752B2
公开(公告)日：2005-07-26
申请号：US10226111
申请日：2002-08-23
申请人： Mustafa Uysal , Arif Merchant , Guillermo Alvarez
发明人： Mustafa Uysal , Arif Merchant , Guillermo Alvarez
IPC分类号： G06F3/06 , G06F11/20 , G06F12/00 , G06F12/16 , G11C29/00
CPC分类号： G06F11/2056 , G06F3/0601 , G06F2003/0692 , Y10S707/99953 , Y10S707/99955
摘要： A computer storage system includes a controller and a storage device array. The storage device array may include a first sub-array and a fast storage device sub-array. The first sub-array includes one or more first storage devices storing data. The fast storage device sub-array includes one or more fast storage devices storing a copy of the data stored in the first sub-array.
摘要翻译：计算机存储系统包括控制器和存储设备阵列。存储设备阵列可以包括第一子阵列和快速存储设备子阵列。第一子阵列包括存储数据的一个或多个第一存储设备。快速存储设备子阵列包括存储存储在第一子阵列中的数据的副本的一个或多个快速存储设备。

5. 发明授权

US07050956B2 Method and apparatus for morphological modeling of complex systems to predict performance 失效
公开(公告)号：US07050956B2
公开(公告)日：2006-05-23
申请号：US09843930
申请日：2001-04-30
申请人： Mustafa Uysal , Ralph Becker-Szendy , Arif Merchant , Guillermo Alvarez
发明人： Mustafa Uysal , Ralph Becker-Szendy , Arif Merchant , Guillermo Alvarez
IPC分类号： G06G7/48
CPC分类号： G06F11/3447 , G06F11/3414 , G06F2201/885
摘要： A method predicts performance of a system that includes a plurality of interconnected components defining at least one data flow path. The method references a workload specification for the system. The method models the system using one or more component models. Each component model represents selected one or more of the components. Each component model is arranged in like relationship to the data flow path as the selected one or more of the components represented by the component model. Each component model is (a) a constraint upon the workload specification input to that component model or (b) a transformer of the workload specification input to that component model so as to result in one or more output workload specifications that are input workload specifications to subsequent component models along the data flow path or (c) both a constraint and a transformer. At least one of the component models is a constraint. At least some of the component models along the data flow path operate on the workload specification. In one preferred form, operating on the workload specification involves arranging the component models in a hierarchy corresponding to the data flow path; using the specified workload specification as input to the topmost component model in the hierarchy; and applying one or more of the component models to its input workload specification, starting with the topmost component model and then component models at progressively lower levels in the hierarchy. Output workload specification at one level is input workload specification at the next lower level. If the component model comprises a constraint, the method evaluates whether the input workload specification satisfies or violates the constraint. If the component model comprises a workload specification transform, the method modifies the input workload specification so as to produce one or more output workload specifications.

6. 发明授权

US07228381B2 Storage system using fast storage device for storing redundant data 有权
标题翻译：存储系统使用快速存储设备存储冗余数据
公开(公告)号：US07228381B2
公开(公告)日：2007-06-05
申请号：US10980649
申请日：2004-11-02
申请人： Mustafa Uysal , Arif Merchant , Guillermo Alvarez
发明人： Mustafa Uysal , Arif Merchant , Guillermo Alvarez
IPC分类号： G06F12/02
CPC分类号： G06F11/2056 , G06F3/0601 , G06F2003/0692 , Y10S707/99953 , Y10S707/99955
摘要： A computer storage system includes a controller and a storage device array. The storage device array may include a first sub-array and a fast storage device sub-array. The first sub-array includes one or more first storage devices storing data. The fast storage device sub-array includes one or more fast storage devices storing a copy of the data stored in the first sub-array.
摘要翻译：计算机存储系统包括控制器和存储设备阵列。存储设备阵列可以包括第一子阵列和快速存储设备子阵列。第一子阵列包括存储数据的一个或多个第一存储设备。快速存储设备子阵列包括存储存储在第一子阵列中的数据的副本的一个或多个快速存储设备。

7. 发明申请

US20050086559A1 Storage system using fast storage devices for storing redundant data 有权
公开(公告)号：US20050086559A1
公开(公告)日：2005-04-21
申请号：US10980649
申请日：2004-11-02
申请人： Mustafa Uysal , Arif Merchant , Guillermo Alvarez
发明人： Mustafa Uysal , Arif Merchant , Guillermo Alvarez
IPC分类号： G06F3/06 , G06F11/20 , G06F12/00 , G06F12/16 , G11C29/00
CPC分类号： G06F11/2056 , G06F3/0601 , G06F2003/0692 , Y10S707/99953 , Y10S707/99955
摘要： A computer storage system includes a controller and a storage device array. The storage device array may include a first sub-array and a fast storage device sub-array. The first sub-array includes one or more first storage devices storing data. The fast storage device sub-array includes one or more fast storage devices storing a copy of the data stored in the first sub-array.

8. 发明授权

US08775763B2 Redundant data assignment in a data storage system 有权
标题翻译：数据存储系统中的冗余数据分配
公开(公告)号：US08775763B2
公开(公告)日：2014-07-08
申请号：US11827973
申请日：2007-07-13
申请人： Arif Merchant , Svend Frolund , Yasusuhi Saito , Susan Spence , Alistair Veitch
发明人： Arif Merchant , Svend Frolund , Yasusuhi Saito , Susan Spence , Alistair Veitch
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28 , G06F7/00 , G06F17/00 , G06F17/30 , G06F3/06
CPC分类号： G06F3/0605 , G06F3/0607 , G06F3/0631 , G06F3/0635 , G06F3/0647 , G06F3/067 , G06F11/2087 , G06F2206/1012
摘要： The present invention provides techniques for assignment and layout of redundant data in data storage system. In one aspect, the data storage system stores a number M of replicas of the data. Nodes that have sufficient resources available to accommodate a requirement of data to be assigned to the system are identified. When the number of nodes is greater than M, the data is assigned to M randomly selected nodes from among those identified. The data to be assigned may include a group of data segments and when the number of nodes is less than M, the group is divided to form a group of data segments having a reduced requirement. Nodes are then identified that have sufficient resources available to accommodate the reduced requirement. In other aspects, techniques are providing for adding a new storage device node to a data storage system having a plurality of existing storage device nodes and for removing data from a storage device node in such a data storage system.
摘要翻译：本发明提供了用于在数据存储系统中分配和布置冗余数据的技术。在一个方面，数据存储系统存储数字M的数据副本。确定具有足够资源以适应要分配给系统的数据的节点。当节点数大于M时，数据被分配给所识别的M个随机选择的节点。要分配的数据可以包括一组数据段，并且当节点数小于M时，该组被划分以形成具有减少的需求的一组数据段。然后识别具有足够资源以适应减少的需求的节点。在其他方面，技术提供了向具有多个现有存储设备节点的数据存储系统添加新的存储设备节点并且用于从这样的数据存储系统中的存储设备节点移除数据。

9. 发明授权

US08694699B2 Path selection for application commands 有权
标题翻译：应用程序命令的路径选择
公开(公告)号：US08694699B2
公开(公告)日：2014-04-08
申请号：US12794594
申请日：2010-06-04
申请人： Kishore Kumar Muppirala , Satish Kumar Mopur , Sumanesh Samanta , Dinkar Sitaram , Ayman Abouelwafa , Mustafa Uysal , Arif Merchant
发明人： Kishore Kumar Muppirala , Satish Kumar Mopur , Sumanesh Samanta , Dinkar Sitaram , Ayman Abouelwafa , Mustafa Uysal , Arif Merchant
IPC分类号： G06F3/00 , G06F13/00
CPC分类号： H04L12/6418
摘要： Systems and methods for path selection for application commands are described. To this end, information associated with at least one application command that were processed at least one port of a target device is received. For a subsequent application command, a set of ports of the target device is determined. In one implementation, the set of ports is determined based on information associated with the subsequent application command. Once the set of ports is determined, the subsequent application command is directed to a port selected from the set of ports.
摘要翻译：描述了应用程序命令的路径选择的系统和方法。为此，接收与处理了目标设备的至少一个端口的至少一个应用命令相关联的信息。对于后续应用命令，确定目标设备的一组端口。在一个实现中，基于与后续应用命令相关联的信息来确定端口组。一旦确定了一组端口，则后续应用命令被定向到从该组端口中选择的端口。

10. 发明申请

US20070192544A1 Method of operating replicated cache 有权
标题翻译：操作复制缓存的方法
公开(公告)号：US20070192544A1
公开(公告)日：2007-08-16
申请号：US11357776
申请日：2006-02-16
申请人： Svend Frolund , Arif Merchant , Alistair Veitch , James Reuter , James Jackson
发明人： Svend Frolund , Arif Merchant , Alistair Veitch , James Reuter , James Jackson
IPC分类号： G06F13/28
CPC分类号： G06F12/0815 , G06F11/1064 , G06F11/1666 , G06F11/183 , G06F12/0808 , G06F12/0866
摘要： An embodiment of a method of operating a replicated cache includes generating a timestamp. A unit of data is read from memory of the replicated cache. The replicated cache comprises a plurality of independent computing devices. Each independent computing device comprises a processor and a portion of the memory. Confirmations are received from at least a majority of the independent computing devices that a flush operation for the unit of data was initiated no later than a time indicated by the timestamp and that a more recent version of the unit of data has not been flushed. The unit of data is provided to storage.
摘要翻译：操作复制高速缓存的方法的实施例包括生成时间戳。从复制的高速缓存的内存读取数据单元。复制的高速缓存包括多个独立的计算设备。每个独立的计算设备包括处理器和存储器的一部分。从至少大多数独立计算设备接收到确认，数据单元的刷新操作不迟于时间戳指示的时间以及数据单元的更新版本尚未刷新。数据单位提供给存储。

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