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1. 发明授权

US08560577B1 Method for coordinating stats collection and analysis among multiple hosts 有权
标题翻译：用于协调多个主机之间的统计信息收集和分析的方法
公开(公告)号：US08560577B1
公开(公告)日：2013-10-15
申请号：US12834188
申请日：2010-07-12
申请人： Irfan Ahmad , Ajay Gulati
发明人： Irfan Ahmad , Ajay Gulati
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F17/302
摘要： Two shared data structures are maintained in a storage unit for coordinating statistic collection among multiple hosts that share the storage unit. The first data structure stores information about the number of hosts that possess slots within the second data structure and identifying information about the slots. The second data structure maintains statistics of each of the multiple hosts. By using this first data structure, hosts can be added to and deleted from the second data structure in an organized manner.
摘要翻译：两个共享数据结构保存在存储单元中，用于协调共享存储单元的多个主机之间的统计收集。第一数据结构存储关于在第二数据结构内具有时隙的主机数量的信息，并且识别关于时隙的信息。第二个数据结构维护每个多个主机的统计信息。通过使用该第一数据结构，可以以有组织的方式将主机添加到第二数据结构中并从其删除。

2. 发明申请

US20110072208A1 Distributed Storage Resource Scheduler and Load Balancer 有权
标题翻译：分布式存储资源计划程序和负载均衡器
公开(公告)号：US20110072208A1
公开(公告)日：2011-03-24
申请号：US12566435
申请日：2009-09-24
申请人： Ajay GULATI , Irfan AHMAD , Chethan KUMAR
发明人： Ajay GULATI , Irfan AHMAD , Chethan KUMAR
IPC分类号： G06F12/00 , G06F12/16
CPC分类号： G06F11/3485 , G06F3/0613 , G06F3/0647 , G06F3/067 , G06F11/3433 , G06F11/3447 , G06F2201/815 , G06F2206/1012
摘要： Distributed storage resources are managed based on data collected from online monitoring of workloads on the storage resources and performance characteristics of the storage resources. Load metrics are calculated from the collected data and used to identify workloads that are migration candidates and storage units that are migration destinations, so that load balancing across the distributed storage resources can be achieved.
摘要翻译：分布式存储资源根据从存储资源的工作负载和存储资源的性能特征的在线监控收集的数据进行管理。负载指标由收集的数据计算，用于识别作为迁移目的地的迁移候选和存储单元的工作负载，从而可以实现跨分布式存储资源的负载平衡。

3. 发明申请

US20100106820A1 QUALITY OF SERVICE MANAGEMENT 有权
标题翻译：服务质量管理
公开(公告)号：US20100106820A1
公开(公告)日：2010-04-29
申请号：US12260054
申请日：2008-10-28
申请人： Ajay GULATI , Irfan AHMAD , Carl A. WALDSPURGER
发明人： Ajay GULATI , Irfan AHMAD , Carl A. WALDSPURGER
IPC分类号： G06F15/173
CPC分类号： G06F9/52
摘要： A method and system for providing quality of service to a plurality of hosts accessing a common resource is described. According to one embodiment, a plurality of IO requests is received from clients executing as software entities on one of the hosts. An IO request queue for each client is separately managed, and an issue queue is populated based on contents of the IO request queues. When a host issue queue is not full, a new IO request is entered into the host issue queue and is issued to the common resource. A current average latency observed at the host is calculated, and an adjusted window size is calculated at least in part based on the current average latency. The window size of the issue queue is adjusted according to the calculated window size.
摘要翻译：描述了一种用于向接入公共资源的多个主机提供服务质量的方法和系统。根据一个实施例，从作为主机之一上的软件实体执行的客户端接收到多个IO请求。每个客户端的IO请求队列被单独管理，并且基于IO请求队列的内容填充问题队列。当主机发出队列未满时，将向主机发出队列中输入新的IO请求，并发布给公共资源。计算在主机处观察到的当前平均延迟，并且基于当前平均延迟至少部分地计算调整的窗口大小。根据计算的窗口大小调整问题队列的窗口大小。

4. 发明授权

US08914598B2 Distributed storage resource scheduler and load balancer 有权
标题翻译：分布式存储资源调度程序和负载均衡器
公开(公告)号：US08914598B2
公开(公告)日：2014-12-16
申请号：US12566435
申请日：2009-09-24
申请人： Ajay Gulati , Irfan Ahmad , Chethan Kumar
发明人： Ajay Gulati , Irfan Ahmad , Chethan Kumar
IPC分类号： G06F12/00
CPC分类号： G06F11/3485 , G06F3/0613 , G06F3/0647 , G06F3/067 , G06F11/3433 , G06F11/3447 , G06F2201/815 , G06F2206/1012
摘要： Distributed storage resources are managed based on data collected from online monitoring of workloads on the storage resources and performance characteristics of the storage resources. Load metrics are calculated from the collected data and used to identify workloads that are migration candidates and storage units that are migration destinations, so that load balancing across the distributed storage resources can be achieved.
摘要翻译：分布式存储资源根据从存储资源的工作负载和存储资源的性能特征的在线监控收集的数据进行管理。负载指标由收集的数据计算，用于识别作为迁移目的地的迁移候选和存储单元的工作负载，从而可以实现跨分布式存储资源的负载平衡。

5. 发明授权

US08856784B2 Decentralized management of virtualized hosts 有权
公开(公告)号：US08856784B2
公开(公告)日：2014-10-07
申请号：US13159935
申请日：2011-06-14
申请人： Ajay Gulati , Irfan Ahmad , Ganesha Shanmuganathan , Carl A. Waldspurger
发明人： Ajay Gulati , Irfan Ahmad , Ganesha Shanmuganathan , Carl A. Waldspurger
IPC分类号： G06F9/455 , G06F9/50 , H04L29/08 , G06F11/34
CPC分类号： G06F9/45533 , G06F9/5088 , G06F11/3433 , G06F2201/815 , H04L67/1008
摘要： One or more embodiments of the present invention provide a technique for effectively managing virtualized computing systems with an unlimited number of hardware resources. Host systems included in a virtualized computer system are organized into a scalable, peer-to-peer (P2P) network in which host systems arrange themselves into a network overlay to communicate with one another. The network overlay enables the host systems to perform a variety of operations, which include dividing computing resources of the host systems among a plurality of virtual machines (VMs), load balancing VMs across the host systems, and performing an initial placement of a VM in one of the host systems.

6. 发明申请

US20130326064A1 DISTRIBUTED DEMAND-BASED STORAGE QUALITY OF SERVICE MANAGEMENT USING RESOURCE POOLING 有权
标题翻译：使用资源池分配的基于需求的存储质量服务管理
公开(公告)号：US20130326064A1
公开(公告)日：2013-12-05
申请号：US13485615
申请日：2012-05-31
申请人： Ajay Gulati , Ganesha Shanmuganathan , Peter Joseph Varman
发明人： Ajay Gulati , Ganesha Shanmuganathan , Peter Joseph Varman
IPC分类号： G06F15/173
CPC分类号： H04L47/805 , G06F9/45533 , G06F9/45558 , G06F9/4881 , G06F9/5061 , G06F2009/45575 , G06F2009/45579
摘要： A system and method for providing quality of service (QoS) for clients running on host computers to access a common resource uses a resource pool module and a local scheduler in at least one of the host computers. The resource pool module operates to compute an entitlement of each client for the common resource based on a current capacity for the common resource and demands of the clients for the common resource. In addition, the resource pool module operates to assign a portion of the computed current capacity for the common resource to a particular host computer using the computed entitlement of each client running on the particular host computer. The local scheduler operates to allocate the portion of the computed current capacity among the clients running on the particular host computer.
摘要翻译：用于为在主计算机上运行以访问公共资源的客户端提供服务质量（QoS）的系统和方法使用至少一个主计算机中的资源池模块和本地调度器。资源池模块用于基于公共资源的当前容量和用于公共资源的客户端的需求来计算用于公共资源的每个客户端的授权。此外，资源池模块操作以使用计算的在特定主机计算机上运行的每个客户端的授权，将用于公共资源的计算出的当前容量的一部分分配给特定主计算机。本地调度器操作以在运行在特定主机计算机上的客户端中分配计算出的当前容量的一部分。

7. 发明申请

US20130031200A1 QUALITY OF SERVICE MANAGEMENT 有权
标题翻译：服务质量管理
公开(公告)号：US20130031200A1
公开(公告)日：2013-01-31
申请号：US13561589
申请日：2012-07-30
申请人： Ajay GULATI , Irfan AHMAD
发明人： Ajay GULATI , Irfan AHMAD
IPC分类号： G06F15/173
CPC分类号： H04L47/56 , G06F3/0659 , G06F13/161 , G06F2213/0064 , H04L1/0018 , H04L29/08099 , H04L49/90 , H04L49/901 , H04L65/601 , H04L65/80 , H04L67/1097 , H04L67/2809
摘要： A method for managing an amount of IO requests transmitted from a host computer to a storage system is described. A current latency value of an IO request most recently removed from an issue queue maintained by the host computer in order to transmit IO requests from the host computer to the storage system is periodically determined. An average latency value is the calculated based on the current latency value and a size limit of the issue queue is adjusted based in part on the average latency value. Upon receiving an IO request from one of a plurality of client applications running on the host computer, it can then be determined whether a number of pending IO requests in the issue queue has reached the size limit and the IO request can be transmitted to the issue queue if the number of pending IO request falls within the size limit.
摘要翻译：描述用于管理从主计算机发送到存储系统的IO请求量的方法。周期性地确定最近从主计算机维护的用于将主机计算机向存储系统发送IO请求的问题队列最近移除的IO请求的当前等待时间值。平均延迟值是基于当前延迟值计算的，并且部分地基于平均延迟值来调整问题队列的大小限制。在从主计算机上运行的多个客户端应用程序中的一个客户端应用程序接收到IO请求后，可以确定发布队列中的多个待处理的IO请求是否已达到大小限制，并且IO请求可以发送到该问题如果待处理的IO请求的数量落在大小限制内，则队列。

8. 发明申请

US20120233363A1 QUALITY OF SERVICE MANAGEMENT 有权
标题翻译：服务质量管理
公开(公告)号：US20120233363A1
公开(公告)日：2012-09-13
申请号：US13407236
申请日：2012-02-28
申请人： Ajay GULATI , Irfan AHMAD , Carl A. WALDSPURGER
发明人： Ajay GULATI , Irfan AHMAD , Carl A. WALDSPURGER
IPC分类号： G06F5/00
CPC分类号： G06F9/52
摘要： A method for measuring latencies caused by processing performed within a common resource is provided. A current latency value representing a time of residency of an IO request in a queue prior to receipt of acknowledgment from the common resource of completion of the IO request is received from a device comprising the queue, which maintains entries for IO requests that have been dispatched to and are pending at the common resource. An average latency value is calculated based in part on the current latency value. An adjusted capacity size for the queue is calculated based in part on the average latency value and the queue's capacity is set to the adjusted capacity size. IO requests are held in a buffer if the queue's capacity is full to reduce the effect of an amount of work transmitted to the common resource on current latency values provided by the device.
摘要翻译：提供了一种用于测量在公共资源内执行的处理引起的延迟的方法。从包括队列的设备接收来自公共IO请求完成的公共资源的确认之前，表示代表在队列中的IO请求的驻留时间的当前等待时间值，其维护已经被分派的IO请求的条目到共同的资源和正在等待。部分基于当前延迟值计算平均延迟值。基于平均延迟值部分地计算队列的调整容量大小，并且将队列的容量设置为调整的容量大小。如果队列的容量已满，IO请求将保留在缓冲区中，以减少传输到公共资源的工作量对设备提供的当前延迟值的影响。

9. 发明申请

US20120054329A1 SATURATION DETECTION AND ADMISSION CONTROL FOR STORAGE DEVICES 有权
标题翻译：存储设备的饱和度检测和接收控制
公开(公告)号：US20120054329A1
公开(公告)日：2012-03-01
申请号：US12869878
申请日：2010-08-27
申请人： Ajay GULATI , Ganesha SHANMUGANATHAN , Irfan AHMAD
发明人： Ajay GULATI , Ganesha SHANMUGANATHAN , Irfan AHMAD
IPC分类号： G06F15/16
CPC分类号： H04L67/1008 , H04L43/0852 , H04L43/16 , H04L43/50 , H04L67/1002 , H04L67/1097
摘要： Maximum throughput of a storage unit, and workload and latency values of the storage unit corresponding to a predefined fraction of the maximum throughput are estimated based on workloads and latencies that are monitored on the storage unit. The computed metrics are usable in a variety of different applications including admission control, storage load balancing, and enforcing quality of service in a shared storage environment.
摘要翻译：基于在存储单元上监视的工作负载和延迟来估计存储单元的最大吞吐量，以及对应于最大吞吐量的预定义分数的存储单元的工作负载和延迟值。所计算的度量可用于各种不同的应用，包括准入控制，存储负载平衡和在共享存储环境中实施服务质量。

10. 发明授权

US09467505B2 Saturation detection and admission control for storage devices 有权
标题翻译：存储设备的饱和度检测和准入控制
公开(公告)号：US09467505B2
公开(公告)日：2016-10-11
申请号：US12869878
申请日：2010-08-27
申请人： Ajay Gulati , Ganesha Shanmuganathan , Irfan Ahmad
发明人： Ajay Gulati , Ganesha Shanmuganathan , Irfan Ahmad
IPC分类号： G06F15/173 , H04L29/08
CPC分类号： H04L67/1008 , H04L43/0852 , H04L43/16 , H04L43/50 , H04L67/1002 , H04L67/1097
摘要： Maximum throughput of a storage unit, and workload and latency values of the storage unit corresponding to a predefined fraction of the maximum throughput are estimated based on workloads and latencies that are monitored on the storage unit. The computed metrics are usable in a variety of different applications including admission control, storage load balancing, and enforcing quality of service in a shared storage environment.
摘要翻译：基于在存储单元上监视的工作负载和延迟来估计存储单元的最大吞吐量，以及对应于最大吞吐量的预定义分数的存储单元的工作负载和延迟值。所计算的度量可用于各种不同的应用，包括准入控制，存储负载平衡和在共享存储环境中实施服务质量。

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