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1. 发明授权

US08775696B2 Storage area network access for virtual machines 有权
标题翻译：虚拟机的存储区域网络访问
公开(公告)号：US08775696B2
公开(公告)日：2014-07-08
申请号：US13429044
申请日：2012-03-23
申请人： Daniel J. Scales , Mallik Mahalingam
发明人： Daniel J. Scales , Mallik Mahalingam
IPC分类号： G06F3/00 , G06F9/455
CPC分类号： G06F9/455 , G06F9/45558 , H04L67/1097
摘要： Techniques for enabling a virtual machine (VM) executing on a physical node to access a partition of a storage system are described. One embodiment associates an identifier with the VM for use when communicating with the storage system, wherein the identifier differs from a default identifier of a host bust adapter (HBA) usable by the physical node to communicate with the storage system.
摘要翻译：描述用于使在物理节点上执行的虚拟机（VM）访问存储系统的分区的技术。一个实施例将标识符与VM进行关联以在与存储系统通信时使用，其中标识符与物理节点可用以与存储系统通信的主机胸围适配器（HBA）的默认标识符不同。

2. 发明授权

US08166475B1 Storage area network access for virtual machines 有权
标题翻译：虚拟机的存储区域网络访问
公开(公告)号：US08166475B1
公开(公告)日：2012-04-24
申请号：US11478200
申请日：2006-06-29
申请人： Daniel J. Scales , Mallik Mahalingam
发明人： Daniel J. Scales , Mallik Mahalingam
IPC分类号： G06F9/445 , G06F13/00 , G06F15/173
CPC分类号： G06F9/455 , G06F9/45558 , H04L67/1097
摘要： Detailed herein are approaches to allowing individual virtual machines executing on a single physical host to have their own substantially unique identifier for access to a storage area network (SAN). In one approach, a substantially unique identifier (SUI) is associated with a virtual machine, and the physical node is instructed to use that SUI when logging into the SAN and when performing input or output operations on behalf of the virtual machine.
摘要翻译：这里详细描述了允许在单个物理主机上执行的各个虚拟机具有用于访问存储区域网络（SAN）的本身基本上唯一的标识符的方法。在一种方法中，基本上唯一的标识符（SUI）与虚拟机相关联，并且指示物理节点在登录SAN时以及当代表虚拟机执行输入或输出操作时使用该SUI。

3. 发明授权

US08478924B2 Interrupt coalescing for outstanding input/output completions 有权
标题翻译：中断合并为突出的输入/输出完成
公开(公告)号：US08478924B2
公开(公告)日：2013-07-02
申请号：US12766369
申请日：2010-04-23
申请人： Irfan Ahmad , Maxime Austruy , Mallik Mahalingam
发明人： Irfan Ahmad , Maxime Austruy , Mallik Mahalingam
IPC分类号： G06F13/24
CPC分类号： G06F13/24 , G06F3/0659 , G06F9/45558 , G06F9/4812 , G06F2009/45579 , G06F2213/2406 , G06F2213/2408 , H04L47/10
摘要： In a computer system, a method of controlling coalescence of interrupts includes dynamically basing a current level of interrupt coalescing upon a determination of outstanding input/output (I/O) commands for which corresponding I/O completions have not been received. Deliveries of interrupts are executed on the basis of the current level and in an absence of enabling timing-triggered delivery of an interrupt.
摘要翻译：在计算机系统中，一种控制中断聚合的方法包括在确定尚未接收到相应的I / O完成的未完成的输入/输出（I / O）命令时动态地基于中断合并的当前级别。中断的传递是在当前级别的基础上执行的，并且没有启用定时触发的中断传递。

4. 发明授权

US08453143B2 Reducing the latency of virtual interrupt delivery in virtual machines 有权
标题翻译：减少虚拟机虚拟中断传送的延迟
公开(公告)号：US08453143B2
公开(公告)日：2013-05-28
申请号：US11857964
申请日：2007-09-19
申请人： Mallik Mahalingam , Boris Weissman
发明人： Mallik Mahalingam , Boris Weissman
IPC分类号： G06F9/455 , G06F13/24
CPC分类号： G06F9/4812 , G06F9/45537 , G06F9/45558 , G06F2009/45575
摘要： The latency of virtual interrupt delivery in virtual machines is reduced by normalizing and exposing the virtual interrupt routing information of each VM to a privileged domain such as the VMkernel in an organized manner to enable virtual interrupt delivery that minimizes the number of VCPU hops. A computer implemented method of processing the virtual I/O request comprises receiving the virtual I/O request, responsive to completing a physical I/O corresponding to the virtual I/O request, referring to a virtual CPU set including information on a destination virtual CPU designated by the guest operating system for handling a virtual interrupt corresponding to the virtual I/O request, and generating the virtual interrupt corresponding to the virtual I/O request to the destination virtual CPU determined by referring to the virtual CPU set.
摘要翻译：通过以有组织的方式标准化并将每个VM的虚拟中断路由信息暴露给诸如VMkernel的特权域来实现虚拟中断传送的延迟，以实现使VCPU跳数最小化的虚拟中断传递。处理虚拟I / O请求的计算机实现的方法包括：响应于完成与虚拟I / O请求对应的物理I / O，参考包括关于虚拟I / O请求的信息的虚拟CPU集合来接收虚拟I / O请求由客户操作系统指定的用于处理与虚拟I / O请求相对应的虚拟中断的CPU，并且通过参考虚拟CPU集合生成与虚拟I / O请求相对应的虚拟中断到目的地虚拟CPU。

5. 发明授权

US07945436B2 Pass-through and emulation in a virtual machine environment 有权
标题翻译：虚拟机环境中的传递和仿真
公开(公告)号：US07945436B2
公开(公告)日：2011-05-17
申请号：US12179402
申请日：2008-07-24
申请人： Boon Seong Ang , Mallik Mahalingam , Ronghua Zhang , Andrew Lambeth
发明人： Boon Seong Ang , Mallik Mahalingam , Ronghua Zhang , Andrew Lambeth
IPC分类号： G06F9/455
CPC分类号： G06F9/45558 , G06F2009/45579
摘要： A virtual device emulated in software and included in a virtual machine is provided in a virtualized computer system. The virtual device includes an emulation mode and a pass through mode. The emulation mode is used for a first plurality of device operations. The pass through mode is used for a second plurality of device operations. The virtual device is configured to communicate with a physical device and each of the second plurality of device operations are configured to be handled by the physical device. The virtual device also includes a switching logic to switch between the emulation mode and the pass through mode based on a device operation to be performed by the virtual machine of the virtual device.
摘要翻译：在虚拟化计算机系统中提供以软件模拟并且包括在虚拟机中的虚拟设备。虚拟设备包括仿真模式和通过模式。仿真模式用于第一多个设备操作。通过模式用于第二多个设备操作。虚拟设备被配置为与物理设备通信，并且第二多个设备操作中的每一个被配置为由物理设备处理。虚拟设备还包括基于要由虚拟设备的虚拟机执行的设备操作的在仿真模式和通过模式之间切换的切换逻辑。

6. 发明授权

US06775673B2 Logical volume-level migration in a partition-based distributed file system 失效
标题翻译：基于分区的分布式文件系统中的逻辑卷级迁移
公开(公告)号：US06775673B2
公开(公告)日：2004-08-10
申请号：US10024941
申请日：2001-12-19
申请人： Mallik Mahalingam , Zheng Zhang , Christos Karamanolis , Daniel A. Muntz
发明人： Mallik Mahalingam , Zheng Zhang , Christos Karamanolis , Daniel A. Muntz
IPC分类号： G06F1730
CPC分类号： G06F17/30067 , G06F3/0607 , G06F3/0643 , G06F3/0647 , G06F3/067 , H04L67/1095 , H04L67/1097 , Y10S707/99953
摘要： Method and system for migrating a logical volumes in a distributed file system having multiple partitions servers. Each partition server owns one or more volumes, and each volume including a subset of logically related objects of the file system. In response to a migration request that requests migration of a selected logical volume from a source partition server to the target partition server, an ownership map is updated to indicate the selected logical volume is owned by the target partition server. At the source partition server, forwarding information is stored to reference the target partition server. When the source partition server receives a request for access to the object, the forwarding information is transmitted to the requester.
摘要翻译：用于迁移具有多个分区服务器的分布式文件系统中的逻辑卷的方法和系统。每个分区服务器拥有一个或多个卷，每个卷包括文件系统的逻辑相关对象的子集。响应于请求将所选逻辑卷从源分区服务器迁移到目标分区服务器的迁移请求，更新所有权映射以指示所选逻辑卷由目标分区服务器拥有。在源分区服务器中，存储转发信息以引用目标分区服务器。当源分区服务器接收到对对象的访问请求时，转发信息被发送到请求者。

7. 发明授权

US08056076B1 Method and system for acquiring a quiesceing set of information associated with a virtual machine 有权
标题翻译：用于获取与虚拟机相关联的静止信息集合的方法和系统
公开(公告)号：US08056076B1
公开(公告)日：2011-11-08
申请号：US11478199
申请日：2006-06-29
申请人： Greg Hutchins , Christian Czezatke , Satyam B. Vaghani , Mallik Mahalingam , Shaw Chuang , Bich Le
发明人： Greg Hutchins , Christian Czezatke , Satyam B. Vaghani , Mallik Mahalingam , Shaw Chuang , Bich Le
IPC分类号： G06F9/46 , G06F9/455 , G06F12/00 , G06F12/16 , G06F7/00 , G06F11/00
CPC分类号： G06F9/461 , G06F9/45558 , G06F9/5077 , G06F11/1464 , G06F11/1466 , G06F2009/45562 , G06F2201/84
摘要： A method and system for acquiring a quiesceing set of information associated with a virtual machine. A virtual machine is cloned. The cloned virtual machine has an associated persistent storage device. The state of the persistent storage device is transformed into a quiesced state of the cloned virtual machine by utilizing a shut-down process. The shut-down process is executed on the cloned virtual machine to quiesce the cloned virtual machine and the quiesceing set of information of the cloned virtual machine is automatically reduced to information stored on the persistent storage device.
摘要翻译：一种用于获取与虚拟机相关联的静止信息的集合的方法和系统。一个虚拟机被克隆。克隆的虚拟机具有关联的持久存储设备。永久存储设备的状态通过关闭过程转换为克隆的虚拟机的静止状态。关闭过程在克隆的虚拟机上执行，以暂停克隆的虚拟机，并将克隆的虚拟机的静止信息集自动还原为存储在永久存储设备上的信息。

8. 发明授权

US07555553B2 Placing an object at a node in a peer-to-peer system based on storage utilization 有权
标题翻译：基于存储利用率将对象放置在对等系统中的节点上
公开(公告)号：US07555553B2
公开(公告)日：2009-06-30
申请号：US10260430
申请日：2002-10-01
申请人： Zheng Zhang , Mallik Mahalingam , Zhichen Xu , Wenting Tang
发明人： Zheng Zhang , Mallik Mahalingam , Zhichen Xu , Wenting Tang
IPC分类号： G06F13/00
CPC分类号： H04L61/1552 , G06F17/30067 , H04L29/12132 , H04L29/12811 , H04L61/6009 , H04L67/104 , H04L67/1076 , H04L69/329
摘要： A peer-to-peer system includes a plurality of nodes. The plurality of nodes includes at least an initial node and a neighboring node. The initial node is operable to determine whether to place an object at either the initial node or another node in the system based on a comparison of storage utilizations for the initial node and the neighboring node.
摘要翻译：点对点系统包括多个节点。多个节点至少包括初始节点和相邻节点。初始节点可操作以基于初始节点和相邻节点的存储利用率的比较来确定是将物体放置在系统中的初始节点还是另一个节点处。

9. 发明申请

US20080294808A1 DIRECT ACCESS TO A HARDWARE DEVICE FOR VIRTUAL MACHINES OF A VIRTUALIZED COMPUTER SYSTEM 有权
标题翻译：直接访问虚拟化计算机系统的虚拟机的硬件设备
公开(公告)号：US20080294808A1
公开(公告)日：2008-11-27
申请号：US12124586
申请日：2008-05-21
申请人： Mallik Mahalingam , Michael Nelson
发明人： Mallik Mahalingam , Michael Nelson
IPC分类号： G06F13/28 , G06F9/54
CPC分类号： G06F13/24 , G06F9/45558 , G06F12/0653 , G06F13/105 , G06F2009/45579
摘要： In a virtualized computer system in which a guest operating system runs on a virtual machine of a virtualized computer system, a computer-implemented method of providing the guest operating system with direct access to a hardware device coupled to the virtualized computer system via a communication interface, the method including: (a) obtaining first configuration register information corresponding to the hardware device, the hardware device connected to the virtualized computer system via the communication interface; (b) creating a passthrough device by copying at least part of the first configuration register information to generate second configuration register information corresponding to the passthrough device; and (c) enabling the guest operating system to directly access the hardware device corresponding to the passthrough device by providing access to the second configuration register information of the passthrough device.
摘要翻译：在其中客户操作系统在虚拟化计算机系统的虚拟机上运行的虚拟化计算机系统中，计算机实现的方法是通过通信接口向客户操作系统提供与耦合到虚拟化计算机系统的硬件设备的直接访问所述方法包括：（a）获得与所述硬件设备相对应的第一配置寄存器信息，所述硬件设备经由所述通信接口连接到所述虚拟化计算机系统; （b）通过复制所述第一配置寄存器信息的至少一部分来创建直通设备，以生成与所述直通设备相对应的第二配置寄存器信息; 以及（c）通过提供对直通装置的第二配置寄存器信息的访问，使得客户操作系统能够直接访问与通过设备相对应的硬件设备。

10. 发明授权

US07424710B1 TCP/IP offloading for virtual machines 有权
标题翻译：虚拟机的TCP / IP卸载
公开(公告)号：US07424710B1
公开(公告)日：2008-09-09
申请号：US10741244
申请日：2003-12-18
申请人： Michael Nelson , Mallik Mahalingam , Ramu Arunachalam
发明人： Michael Nelson , Mallik Mahalingam , Ramu Arunachalam
IPC分类号： G06F9/455
CPC分类号： G06F9/45537 , H04L69/32
摘要： An engine (TOE) is provided in a virtualized computer system for offloading I/O tasks using any defined protocol such as TCP/IP. The system includes a virtual machine (VM), which has a guest operating system (OS) that runs via a virtual machine monitor (VMM) on a system-level software platform (vmkernel), which also forms the software interface layer to at least one physical network connection device. A TCP/IP stack is included in vmkernel. During normal I/O operation, for sockets associated with TOE, processes in an application layer in the guest OS are able to communicate directly with vmkernel's TCP/IP stack, thereby bypassing the guest OS kernel.
摘要翻译：在虚拟化计算机系统中提供引擎（TOE），用于使用任何定义的协议（如TCP / IP）卸载I / O任务。该系统包括虚拟机（VM），该虚拟机具有通过系统级软件平台（vmkernel）上的虚拟机监视器（VMM）运行的客户机操作系统（OS），该虚拟机还至少形成软件接口层一个物理网络连接设备。 vmkernel中包含一个TCP / IP协议栈。在正常I / O操作期间，对于与TOE相关联的套接字，来宾OS中的应用层中的进程能够直接与vmkernel的TCP / IP协议栈通信，从而绕过客户机操作系统内核。

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