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1. 发明授权

US07934020B1 Managing network data transfers in a virtual computer system 有权
标题翻译：管理虚拟计算机系统中的网络数据传输
公开(公告)号：US07934020B1
公开(公告)日：2011-04-26
申请号：US10665808
申请日：2003-09-19
申请人： Hao Xu , Daniel J. Scales
发明人： Hao Xu , Daniel J. Scales
IPC分类号： G06F15/16
CPC分类号： H04L63/1408 , G06F9/45558 , G06F9/485 , G06F21/554 , G06F2009/45587 , G06F2009/45595 , H04L63/1458
摘要： A virtual computer system, including one or more virtual machines (VMs), is connected to a computer network by multiple network interface cards (NICs). The VMs are supported by a kernel, which includes a resource manager for allocating system resources among the VMs, including network data bandwidth. A NIC manager is loaded into the kernel as a driver or is integrated into the kernel, for selecting NICs over which outgoing network data is transferred, including providing functions such as failovers and failbacks, as well as load distribution. Implementing the NIC manager in the kernel provides NIC teaming functions to each of the VMs without having to implement a NIC teaming solution in each of the VMs, adding to the simplicity, flexibility and portability of the VMs. In addition, integrating the NIC manager into the kernel improves the kernel's ability to manage the VMs and to implement network resource allocations for the VMs.
摘要翻译：包括一个或多个虚拟机（VM）的虚拟计算机系统通过多个网络接口卡（NIC）连接到计算机网络。 VM由内核支持，内核包括用于在VM之间分配系统资源的资源管理器，包括网络数据带宽。 NIC管理器作为驱动程序加载到内核中，或者集成到内核中，用于选择传输网络数据的NIC，包括提供故障转移和故障回复等功能以及负载分配。在内核中实现NIC管理器可以为每个虚拟机提供NIC分组功能，而无需在每个虚拟机中实现NIC分组解决方案，增加了虚拟机的简单性，灵活性和可移植性。此外，将NIC管理器集成到内核中可以提高内核管理虚拟机的能力，并为虚拟机实现网络资源分配。

2. 发明授权

US08443139B2 SCSI protocol emulation for virtual storage device stored on NAS device 有权
标题翻译：存储在NAS设备上的虚拟存储设备的SCSI协议仿真
公开(公告)号：US08443139B2
公开(公告)日：2013-05-14
申请号：US13430468
申请日：2012-03-26
申请人： Michael Nelson , Hao Xu , Daniel J. Scales , Matthew B. Amdur
发明人： Michael Nelson , Hao Xu , Daniel J. Scales , Matthew B. Amdur
IPC分类号： G06F13/00 , G06F12/00
CPC分类号： G06F12/145 , G06F13/42 , G06F2213/0028 , G06F2213/0058
摘要： A virtualization technique, in accordance with one embodiment of the present invention, includes emulating the small computing system interface (SCSI) protocol to access a virtual SCSI storage device backed by a file stored on network attached storage (NAS).
摘要翻译：根据本发明的一个实施例的虚拟化技术包括模拟小型计算系统接口（SCSI）协议以访问由存储在网络连接存储（NAS）上的文件支持的虚拟SCSI存储设备。

3. 发明授权

US08266275B2 Managing network data transfers in a virtual computer system 有权
标题翻译：管理虚拟计算机系统中的网络数据传输
公开(公告)号：US08266275B2
公开(公告)日：2012-09-11
申请号：US12468011
申请日：2009-05-18
申请人： Hao Xu , Daniel J. Scales
发明人： Hao Xu , Daniel J. Scales
IPC分类号： G06F15/173
CPC分类号： H04L63/1408 , G06F9/45558 , G06F9/485 , G06F21/554 , G06F2009/45587 , G06F2009/45595 , H04L63/1458
摘要： A method for protecting a virtual computer system which may be susceptible to adverse effects from a Denial of Service attack is described. The virtual computer system includes a plurality of VMs. In the method, data that is transferred between the virtual computer system and the computer network is monitored for an indication of a possible Denial of Service attack. If an indication of a possible Denial of Service attack is detected, one or more of the VMs is suspended, to reduce the risk of adverse effects on one or more other VMs.
摘要翻译：描述了一种用于保护可能容易遭受拒绝服务攻击的不利影响的虚拟计算机系统的方法。虚拟计算机系统包括多个虚拟机。在该方法中，监视在虚拟计算机系统和计算机网络之间传送的数据，以示出可能的拒绝服务攻击的指示。如果检测到可能的拒绝服务攻击的指示，则一个或多个VM被暂停，以减少对一个或多个其他VM的不利影响的风险。

4. 发明授权

US08145836B2 SCSI protocol emulation for virtual storage device stored on NAS device 有权
标题翻译：存储在NAS设备上的虚拟存储设备的SCSI协议仿真
公开(公告)号：US08145836B2
公开(公告)日：2012-03-27
申请号：US12959930
申请日：2010-12-03
申请人： Michael Nelson , Hao Xu , Daniel J. Scales , Matthew B. Amdur
发明人： Michael Nelson , Hao Xu , Daniel J. Scales , Matthew B. Amdur
IPC分类号： G06F13/00 , G06F13/28 , G06F9/455
CPC分类号： G06F12/145 , G06F13/42 , G06F2213/0028 , G06F2213/0058
摘要： A virtualization technique, in accordance with one embodiment of the present invention, includes emulating the small computing system interface (SCSI) protocol to access a virtual SCSI storage device backed by a file stored on network attached storage (NAS).
摘要翻译：根据本发明的一个实施例的虚拟化技术包括模拟小型计算系统接口（SCSI）协议以访问由存储在网络连接存储（NAS）上的文件支持的虚拟SCSI存储设备。

5. 发明授权

US07865663B1 SCSI protocol emulation for virtual storage device stored on NAS device 有权
标题翻译：存储在NAS设备上的虚拟存储设备的SCSI协议仿真
公开(公告)号：US07865663B1
公开(公告)日：2011-01-04
申请号：US11707359
申请日：2007-02-16
申请人： Michael Nelson , Hao Xu , Daniel J. Scales , Matthew B. Amdur
发明人： Michael Nelson , Hao Xu , Daniel J. Scales , Matthew B. Amdur
IPC分类号： G06F13/00 , G06F13/28 , G06F9/455
CPC分类号： G06F12/145 , G06F13/42 , G06F2213/0028 , G06F2213/0058
摘要： A virtualization technique, in accordance with one embodiment of the present invention, includes emulating the small computing system interface (SCSI) protocol to access a virtual SCSI storage device backed by a file stored on network attached storage (NAS).
摘要翻译：根据本发明的一个实施例的虚拟化技术包括模拟小型计算系统接口（SCSI）协议以访问由存储在网络连接存储（NAS）上的文件支持的虚拟SCSI存储设备。

6. 发明授权

US09459895B2 Virtual machine fault tolerance 有权
标题翻译：虚拟机容错
公开(公告)号：US09459895B2
公开(公告)日：2016-10-04
申请号：US13471616
申请日：2012-05-15
申请人： Ganesh Venkitachalam , Rohit Jain , Boris Weissman , Daniel J. Scales , Vyacheslav Malyugin , Jeffrey W. Sheldon , Min Xu
发明人： Ganesh Venkitachalam , Rohit Jain , Boris Weissman , Daniel J. Scales , Vyacheslav Malyugin , Jeffrey W. Sheldon , Min Xu
IPC分类号： G06F9/455 , G06F11/07
CPC分类号： G06F11/1658 , G06F9/45533 , G06F9/45558 , G06F9/4881 , G06F11/0712 , G06F11/0766 , G06F11/079 , G06F2009/45579 , G06F2009/45591 , G06F2201/805 , G06F2201/815 , G06F2201/82
摘要： In a computer system running at least a first virtual machine (VM) and a second VM on virtualization software, a computer implemented method for the second VM to provide quasi-lockstep fault tolerance for the first VM. The method includes enabling operations of the second VM to diverge from being in lockstep with operations with the first VM without resynchronizing the second VM with the first VM, if output of the second VM is not diverging from output of the first VM. The output of the second VM is compared with the output of the first VM to determine whether the output of the second VM has diverged from the output of the first VM. In response to a determination that the output of the second VM has diverged from the output of the first VM, a resynchronization of the second VM is executed.
摘要翻译：在运行虚拟化软件上的至少第一虚拟机（VM）和第二虚拟机的计算机系统中，用于所述第二虚拟机为所述第一虚拟机提供准锁步骤容错的计算机实现的方法。该方法包括如果第二VM的输出不与第一VM的输出分离，则第二VM的启用操作使得与第一VM的操作不同步，而不与第一VM重新同步第二VM。将第二VM的输出与第一VM的输出进行比较，以确定第二个VM的输出是否与第一个VM的输出分离。响应于确定第二VM的输出已经从第一VM的输出分离，执行第二VM的重新同步。

7. 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。

8. 发明授权

US08397038B2 Initializing file data blocks 有权
标题翻译：初始化文件数据块
公开(公告)号：US08397038B2
公开(公告)日：2013-03-12
申请号：US12050805
申请日：2008-03-18
申请人： Daniel J. Scales , Satyam B. Vaghani
发明人： Daniel J. Scales , Satyam B. Vaghani
IPC分类号： G06F12/00
CPC分类号： G06F17/3007 , G06F3/0608 , G06F3/0643 , G06F3/0676
摘要： A method and system is provided for initializing files such as, for example and without limitation, pre-allocated files or raw device mapping (RDM) files, by delaying initializing file blocks. In accordance with one or more embodiments of the present invention, file blocks are associated with corresponding indicators to track un-initialized blocks.
摘要翻译：提供了一种方法和系统，用于通过延迟初始化文件块来初始化诸如例如但不限于预先分配的文件或原始设备映射（RDM）文件的文件。根据本发明的一个或多个实施例，文件块与相应的指示符相关联以跟踪未初始化的块。

9. 发明授权

US07783779B1 Storage multipath management in a virtual computer system 有权
标题翻译：在虚拟计算机系统中进行存储多路径管理
公开(公告)号：US07783779B1
公开(公告)日：2010-08-24
申请号：US10665779
申请日：2003-09-19
申请人： Daniel J. Scales , Thorbioern Donbaek Jensen
发明人： Daniel J. Scales , Thorbioern Donbaek Jensen
IPC分类号： G06F15/173
CPC分类号： G06F9/5077
摘要： A virtual computer system, including one or more virtual machines (VMs), is connected to a redundant data storage system having multiple paths for routing data between the computer system and the data storage system. The VMs are supported by a kernel, which includes a resource manager for allocating system resources among the VMs, including data storage space and data storage bandwidth. A storage path manager (SPM) is integrated into the kernel for routing data between the computer system and the data storage system, including providing functions such as failovers and failbacks, as well as load distribution. Integrating the SPM into the kernel improves the kernel's ability to manage the VMs and to provide SAN resources to the VMs. For example, the SPM may enhance the isolation between multiple VMs by routing their respective data over different data paths. Also, the SPM may improve the allocation of system resources by coordinating with the resource manager.
摘要翻译：包括一个或多个虚拟机（VM）的虚拟计算机系统连接到具有用于在计算机系统和数据存储系统之间路由数据的多个路径的冗余数据存储系统。内核支持虚拟机，其中包括用于在VM之间分配系统资源的资源管理器，包括数据存储空间和数据存储带宽。存储路径管理器（SPM）集成到内核中，用于在计算机系统和数据存储系统之间路由数据，包括提供诸如故障转移和故障恢复等功能以及负载分配。将SPM集成到内核中可以改善内核管理虚拟机的能力，并为虚拟机提供SAN资源。例如，SPM可以通过在不同数据路径上路由它们各自的数据来增强多个VM之间的隔离。此外，SPM可以通过与资源管理器协调来改进系统资源的分配。

10. 发明授权

US07185327B2 System and method for optimizing operations via dataflow analysis 失效
标题翻译：通过数据流分析优化操作的系统和方法
公开(公告)号：US07185327B2
公开(公告)日：2007-02-27
申请号：US09757764
申请日：2001-01-09
申请人： Daniel J. Scales
发明人： Daniel J. Scales
IPC分类号： G06F9/45
CPC分类号： G06F8/443
摘要： A method for modifying serial dependencies in a procedure includes a step of building a graph representation of the procedure. The graph representation has an origin as well as a unique position, relative to the origin, for each memory operation in the procedure. Each memory operation in the representation is designated with a location type. Each of these location types are based on one or more characteristics of the corresponding memory operation that are sufficient to notify the compiler that the memory operation accesses a distinct or disjoint memory location. Memory operations having the same location type as subsequent memory operations are identified. When the graph representation does not include additional memory operations of the same location type between pairs of such memory operations, the subsequent memory operation is moved to a position in the intermediate representation that is closer to the origin.
摘要翻译：在过程中修改串行依赖性的方法包括构建过程的图表示的步骤。对于程序中的每个存储器操作，图形表示具有相对于原点的原点以及唯一的位置。表示中的每个存储器操作都用位置类型指定。这些位置类型中的每一个基于对应的存储器操作的一个或多个特性，足以通知编译器存储器操作访问不同或不相交的存储器位置。识别与后续存储器操作具有相同位置类型的存储器操作。当图形表示不包括这种存储器操作对之间相同位置类型的附加存储器操作时，随后的存储器操作被移动到更接近原点的中间表示中的位置。

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