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1. 发明申请

US20070294478A1 SYSTEM AND METHOD FOR FAULT TOLERANT CONTROLLER FOR NETWORK RAID 审中-公开
标题翻译：用于网络RAID的容错控制器的系统和方法
公开(公告)号：US20070294478A1
公开(公告)日：2007-12-20
申请号：US11846046
申请日：2007-08-28
申请人： Claudio Fleiner , Richard Golding , Deepak Kenchammana-Hosekote , Omer Zakl
发明人： Claudio Fleiner , Richard Golding , Deepak Kenchammana-Hosekote , Omer Zakl
IPC分类号： G06F12/16
CPC分类号： G06F11/2089
摘要： A fault-tolerant and efficient way of deducing a set of inconsistent stripes for a network RAID protocol, wherein clients forward input/output (I/O) to a particular controller device called the coordinator, which executes RAID logic and which sends out device IOs to the relevant storage devices. If the coordinator fails then a new coordinator reconstructs its state from the storage devices.
摘要翻译：用于对网络RAID协议推导出一组不一致的条带的容错和有效的方式，其中客户机将输入/输出（I / O）转发到称为协调器的特定控制器设备，其执行RAID逻辑并且发送设备IO 到相关的存储设备。如果协调器失败，则新协调器将从存储设备重构其状态。

2. 发明申请

US20060095661A1 System and method for fault tolerant controller for network RAID 失效
标题翻译：网络RAID容错控制器的系统和方法
公开(公告)号：US20060095661A1
公开(公告)日：2006-05-04
申请号：US10977429
申请日：2004-10-29
申请人： Claudio Fleiner , Richard Golding , Deepak Kenchammana-Hosekote , Omer Zaki
发明人： Claudio Fleiner , Richard Golding , Deepak Kenchammana-Hosekote , Omer Zaki
IPC分类号： G06F12/16
CPC分类号： G06F11/2089
摘要： A fault-tolerant and efficient way of deducing a set of inconsistent stripes for a network RAID protocol, wherein clients forward input/output (I/O) to a particular controller device called the coordinator, which executes RAID logic and which sends out device IOs to the relevant storage devices. If the coordinator fails then a new coordinator reconstructs its state from the storage devices.
摘要翻译：用于对网络RAID协议推导出一组不一致的条带的容错和有效的方式，其中客户机将输入/输出（I / O）转发到称为协调器的特定控制器设备，其执行RAID逻辑并且发送设备IO 到相关的存储设备。如果协调器失败，则新协调器将从存储设备重构其状态。

3. 发明申请

US20060069716A1 Decision mechanisms for adapting raid operation placement 有权
标题翻译：调整突袭操作布局的决策机制
公开(公告)号：US20060069716A1
公开(公告)日：2006-03-30
申请号：US10957167
申请日：2004-09-30
申请人： Claudio Fleiner , Richard Golding , Deepak Kenchammana-Hosekote , Omer Zaki
发明人： Claudio Fleiner , Richard Golding , Deepak Kenchammana-Hosekote , Omer Zaki
IPC分类号： G06F15/16 , G06F12/16
CPC分类号： H04L67/1095
摘要： A client node of a distributed storage system adaptive determines on an operation-by-operation basis whether to process a network-RAID IO operation (IO request) locally at the client node or to forward the IO request to a storage server of the system for processing. The client node determines to process the requested network-RAID operation at the client node when a local estimator for a type of the requested network-RAID operation is less than a central estimator for the type of the requested network-RAID operation. Otherwise, the client node determines to process the requested network-RAID operation at a storage server when the local estimator for the type of the requested network-RAID operation is greater than the central estimator for the type of the requested network-RAID operation.
摘要翻译：分布式存储系统的客户端节点自适应地确定是否在操作的基础上确定是否在客户端节点本地处理网络RAID IO操作（IO请求），或者将IO请求转发到系统的存储服务器处理。当所请求的网络RAID操作的类型的本地估计器小于所请求的网络RAID操作的类型的中心估计器时，客户端节点确定在客户端节点处理所请求的网络RAID操作。否则，当针对所请求的网络RAID操作的类型的本地估计器大于针对所请求的网络RAID操作的类型的中心估计器时，客户机节点确定在存储服务器处理所请求的网络RAID操作。

4. 发明授权

US06401110B1 Method for managing concurrent processes using dual locking 失效
标题翻译：使用双重锁定管理并发进程的方法
公开(公告)号：US06401110B1
公开(公告)日：2002-06-04
申请号：US09203101
申请日：1998-11-30
申请人： Richard Francis Freitas , Divyesh Jadav , Deepak Kenchammana-Hosekote , Jaishankar Moothedath Menon , Hovey Raymond Strong, Jr.
发明人： Richard Francis Freitas , Divyesh Jadav , Deepak Kenchammana-Hosekote , Jaishankar Moothedath Menon , Hovey Raymond Strong, Jr.
IPC分类号： G06F900
CPC分类号： G06F9/526 , G06F2209/522
摘要： Multiple competing processors cooperatively manage access to a shared resource. Each processor separately stores a lock table, listing shared resource subparts, such as memory addresses of a data storage device, for example. The lock tables are stored in nonvolatile storage. In each lock table, each subpart is associated with a “state,” such as; LOCAL or REMOTE. In response to access requests from the hosts, the processors exchange various messages to cooperatively elect a single processor to have exclusive access to the subparts involved in the access requests. After one processor is elected, the lock-holding processor configures its lock table to show the identified subpart in the LOCAL state, and all non-lock-holding processors configure their lock tables to show the identified subpart in the REMOTE state. Thus, rather than replicating one lock table for all processors, the processors separately maintain lock tables that are coordinated with each other. Importantly, each processor honors its lock table by refraining from accessing a subpart of the shared resource unless the processor's lock table indicates a LOCAL state for that subpart. In one embodiment, optimized for the two processor environment, the messages exchanged by the processors include lock request, lock release, and lock grant messages.
摘要翻译：多个竞争处理器协同地管理对共享资源的访问。每个处理器分别存储锁表，列出例如数据存储设备的共享资源子部分，例如存储器地址。锁表存储在非易失性存储器中。在每个锁表中，每个子部分与“状态”相关联，如 LOCAL或REMOTE。响应于来自主机的访问请求，处理器交换各种消息以协作地选择单个处理器以具有对访问请求中涉及的子部分的独占访问。在选择一个处理器之后，锁定保持处理器配置其锁定表以在LOCAL状态下显示所识别的子部件，并且所有非锁定保持处理器都配置其锁定表以显示REMOTE状态中标识的子部件。因此，处理器不是为所有处理器复制一个锁定表，而是分别维护彼此协调的锁定表。重要的是，每个处理器通过禁止访问共享资源的子部分来履行其锁定表，除非处理器的锁表指示该子部分的LOCAL状态。在针对两个处理器环境进行了优化的一个实施例中，由处理器交换的消息包括锁定请求，锁定释放和锁定授权消息。

5. 发明授权

US08910156B1 Virtual machine dependency 有权
标题翻译：虚拟机依赖
公开(公告)号：US08910156B1
公开(公告)日：2014-12-09
申请号：US13097813
申请日：2011-04-29
申请人： Deepak Kenchammana-Hosekote , Eric Paul Forgette , Shravan Gaonkar
发明人： Deepak Kenchammana-Hosekote , Eric Paul Forgette , Shravan Gaonkar
IPC分类号： G06F9/455
CPC分类号： G06F9/45533 , G06F9/455 , G06F9/45558 , G06F17/30233 , G06F2009/45566
摘要： One or more techniques and/or systems are provided for describing virtual machine dependencies. In particular, data objects, such as virtual hard drives, associated with virtual machines may be identified and/or examined to identify data structures, such as configuration files, comprising configuration data. The configuration data may be analyzed to determine dependency relationships between virtual machines to describe virtual machine dependencies. Identifying virtual machine dependencies, among other things, allows virtual machines that are no longer used to be repurposed, deleted, reset, etc. with little to no adverse effect on other virtual machines.
摘要翻译：提供一个或多个技术和/或系统来描述虚拟机依赖性。特别地，可以识别和/或检查与虚拟机相关联的数据对象，例如虚拟硬盘驱动器，以识别包括配置数据的数据结构，例如配置文件。可以分析配置数据以确定虚拟机之间的依赖关系以描述虚拟机依赖性。识别虚拟机相关性，除其他外，允许不再使用的虚拟机被重新利用，删除，重置等，对其他虚拟机几乎没有任何不利影响。

6. 发明授权

US08621274B1 Virtual machine fault tolerance 有权
公开(公告)号：US08621274B1
公开(公告)日：2013-12-31
申请号：US13110582
申请日：2011-05-18
申请人： Eric Paul Forgette , Deepak Kenchammana-Hosekote , Shravan Gaonkar , Arthur Franklin Lent
发明人： Eric Paul Forgette , Deepak Kenchammana-Hosekote , Shravan Gaonkar , Arthur Franklin Lent
IPC分类号： G06F11/00
CPC分类号： G06F11/1484 , G06F11/1435 , G06F11/1451 , G06F11/1469 , G06F11/1471 , G06F11/203 , G06F11/2035 , G06F11/2048 , G06F2201/815 , G06F2201/84
摘要： One or more techniques and/or systems are provided for hosting a virtual machine from a snapshot. In particular, a snapshot of a virtual machine hosted on a primary computing device may be created. The virtual machine may be hosted on a secondary computing device using the snapshot, for example, when a failure of the virtual machine on the primary computing device occurs. If a virtual machine type (format) of the snapshot is not supported by the secondary computing device, then the virtual machine within the snapshot may be converted to a virtual machine type supported by the secondary computing device. In this way, the virtual machine may be operable and/or accessible on the secondary computing device despite the failure. Hosting the virtual machine on the secondary computing device provides, among other things, fault tolerance for the virtual machine and/or applications comprised therein.

7. 发明授权

US08429360B1 Method and system for efficient migration of a storage object between storage servers based on an ancestry of the storage object in a network storage system 有权
标题翻译：用于基于网络存储系统中的存储对象的祖先在存储服务器之间有效迁移存储对象的方法和系统
公开(公告)号：US08429360B1
公开(公告)日：2013-04-23
申请号：US12618415
申请日：2009-11-13
申请人： Rahul Iyer , Deepak Kenchammana-Hosekote , Arthur F. Lent
发明人： Rahul Iyer , Deepak Kenchammana-Hosekote , Arthur F. Lent
IPC分类号： G06F12/00
CPC分类号： G06F17/30581
摘要： Embodiments of the present invention provide a method and system, in a network storage system, for efficiently migrating a storage object (vdisk) from a first storage server (source) to a second storage server (destination) using data of a related vdisk at the destination. A related vdisk includes an earlier created vdisk (parent) from which the vdisk to be migrated (child) is generated (cloned). By virtue of the cloned relationship, the parent and child have a portion of data blocks in common. When a parent is available at the destination, only the changed data blocks between the parent and child need to be migrated for efficiently constructing the child at the destination.
摘要翻译：本发明的实施例提供了一种在网络存储系统中的方法和系统，用于使用第二存储服务器（源）上的相关虚拟磁盘的数据有效地将存储对象（虚拟磁盘）从第一存储服务器（源）迁移到第二存储服务器目的地。相关的虚拟磁盘包括一个早期创建的vdisk（父），从中生成（克隆）要迁移的虚拟磁盘（子）。凭借克隆关系，父和子共有一部分数据块。父母在目的地可用时，只需要迁移父和子之间的更改的数据块，以便在目的地有效地构建孩子。

8. 发明授权

US6105099A Method for synchronizing use of dual and solo locking for two competing processors responsive to membership changes 失效
标题翻译：同时使用响应于会员资格变更的两个竞争性处理器的双重和单独锁定的方法
公开(公告)号：US6105099A
公开(公告)日：2000-08-15
申请号：US203102
申请日：1998-11-30
申请人： Richard Francis Freitas , Divyesh Jadav , Deepak Kenchammana-Hosekote , Jaishankar Moothedath Menon , Hovey Raymond Strong, Jr.
发明人： Richard Francis Freitas , Divyesh Jadav , Deepak Kenchammana-Hosekote , Jaishankar Moothedath Menon , Hovey Raymond Strong, Jr.
IPC分类号： G06F9/46 , G06F12/00 , G06F12/14
CPC分类号： G06F9/52
摘要： To satisfy host requests, two competing processors self-manage access to a shared resource. Each processor maintains a lock table listing that processor's access state regarding the shared resource. Each processor repeatedly sends the other processor a state announcement message representing the processor's state. These include birth cry, heartbeat, or death knell messages. Whenever certain join-entry conditions apply to a processor, the processor performs a JOIN operation to evaluate and attempt to synchronize its lock table with the other processor's lock table. If data is needed from the other processor's lock table, the processor changes its state announcement message to birth cry. If the processor successfully synchronizes its lock table with the other processor, the JOIN operation dictates DUAL mode for that processor. If the synchronization attempt fails, SOLO results. When JOIN completes, the processor operates in its chosen mode. In DUAL, the processor's state announcement message is heartbeat, signifying healthy operation. In DUAL, the processors cooperatively establish temporary single-processor locks on the shared resource to satisfy host requests. In SOLO, a processor sets its state announcement message to death knell, advising the other processor not to access the shared resource. Also in SOLO, the processor attempts to "acquire" the shared resource by storing a predetermined identifier thereon. In SOLO, a processor refrains from accessing the shared resource unless it has acquired it.
摘要翻译：为了满足主机请求，两个竞争的处理器自我管理对共享资源的访问。每个处理器维护一个锁表，列出处理器关于共享资源的访问状态。每个处理器重复地向其他处理器发送表示处理器状态的状态通知消息。这些包括出生哭泣，心跳或死亡消息。每当某个加入条件适用于处理器时，处理器执行JOIN操作来评估并尝试将其锁定表与其他处理器的锁定表同步。如果需要其他处理器的锁定表的数据，处理器将其状态通知消息改变为出生哭泣。如果处理器将其锁定表与其他处理器成功同步，则JOIN操作将指定该处理器的DUAL模式。如果同步尝试失败，SOLO结果。当JOIN完成时，处理器以其所选模式运行。在DUAL中，处理器的状态通知信号是心跳，意味着健康运行。在DUAL中，处理器在共享资源上协作建立临时单处理器锁以满足主机请求。在SOLO中，处理器将其状态通知消息设置为死机，建议另一个处理器不要访问共享资源。同样在SOLO中，处理器尝试通过在其上存储预定的标识符来“获取”共享资源。在SOLO中，处理器除非已获取共享资源，否则不会访问共享资源。

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