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1. 发明授权

US08521686B2 Concurrency control in a file system shared by application hosts 有权
标题翻译：应用程序主机共享的文件系统中的并发控制
公开(公告)号：US08521686B2
公开(公告)日：2013-08-27
申请号：US12502086
申请日：2009-07-13
申请人： Haripriya Rajagopal , Satyam Vaghani , Yuen-Lin Tan
发明人： Haripriya Rajagopal , Satyam Vaghani , Yuen-Lin Tan
IPC分类号： G06F17/00
CPC分类号： H04L29/08549 , G06F17/30168
摘要： A manager program for managing virtual machines includes a process which receives a notification message indicating an occurrence of an event affecting a data storage unit in a data storage system that supports a shared file system. The notification message might have come from a virtual machine host or resulted from a hardware reconfiguration. The manager program then determines whether another virtual machine host is sharing the data storage unit. The manager program might make this determination by polling each of the virtual machine hosts it manages or by checking information previously collected and stored in a database. If another virtual machine host is sharing the data storage unit, the manager program sends a refresh message to that virtual machine host that causes the virtual machine host to update information relating to the data storage unit in a cache associated with the virtual machine host.
摘要翻译：用于管理虚拟机的管理程序包括接收指示在支持共享文件系统的数据存储系统中影响数据存储单元的事件的发生的通知消息的处理。通知消息可能来自虚拟机主机或由硬件重新配置导致。管理程序然后确定另一个虚拟机主机是否共享数据存储单元。管理程序可以通过轮询其管理的每个虚拟机主机或通过检查先前收集并存储在数据库中的信息来进行此确定。如果另一个虚拟机主机正在共享数据存储单元，则管理程序向该虚拟机主机发送刷新消息，该虚拟机主机使虚拟机主机在与虚拟机主机相关联的高速缓存中更新与数据存储单元有关的信息。

2. 发明授权

US08001322B2 Notifying software components using a shared physical storage medium 有权
标题翻译：使用共享物理存储介质通知软件组件
公开(公告)号：US08001322B2
公开(公告)日：2011-08-16
申请号：US12732856
申请日：2010-03-26
申请人： Olivier Lecomte , Satyam Vaghani , Daniel J. Scales
发明人： Olivier Lecomte , Satyam Vaghani , Daniel J. Scales
IPC分类号： G06F12/00
CPC分类号： G06F3/0664 , G06F3/0614 , G06F3/0631 , G06F3/0683 , G06F9/5077 , G06F2209/5014 , Y02D10/22 , Y02D10/36
摘要： A method for implementing virtual disk reservations on a storage medium for multiple distributed applications. The method includes initializing a plurality of virtual disks, wherein each of the virtual disks is instantiated on a physical storage medium. A reservation status is determined for each of the virtual disks and a first distributed application that uses at least one virtual disk is executed. Upon an update of the reservation status for the at least one virtual disk by the first distributed application, a notification indicator is set to notify a second distributed application of the update. The update is subsequently recognized and the notification indicator is cleared in order to continue I/O for the first distributed application and the second distributed application.
摘要翻译：一种在多个分布式应用的存储介质上实现虚拟磁盘预留的方法。该方法包括初始化多个虚拟盘，其中每个虚拟盘被实例化在物理存储介质上。为每个虚拟磁盘确定预约状态，并且执行使用至少一个虚拟磁盘的第一分布式应用程序。在由第一分布式应用程序更新至少一个虚拟磁盘的预留状态时，设置通知指示符以通知第二分布式应用程序更新。随后识别更新，并清除通知指示符，以便为第一个分布式应用程序和第二个分布式应用程序继续I / O。

3. 发明申请

US20080028145A1 Implementing virtual disk reservations on a storage media for multiple distributed applications 有权
标题翻译：在多个分布式应用程序的存储介质上实现虚拟磁盘预留
公开(公告)号：US20080028145A1
公开(公告)日：2008-01-31
申请号：US11649501
申请日：2007-01-03
申请人： Olivier Lecomte , Satyam Vaghani , Daniel Scales
发明人： Olivier Lecomte , Satyam Vaghani , Daniel Scales
IPC分类号： G06F12/00
CPC分类号： G06F3/0664 , G06F3/0614 , G06F3/0631 , G06F3/0683 , G06F9/5077 , G06F2209/5014 , Y02D10/22 , Y02D10/36
摘要： A method for implementing virtual disk reservations on a storage media for multiple distributed applications. The method includes initializing a plurality of virtual disks, wherein each of the virtual disks is instantiated on a physical storage media. A reservation status is determined for each of the virtual disks and a first distributed application that uses at least one virtual disk is executed. Upon an update of the reservation status for the at least one virtual disk by the first distributed application, a notification indicator is set to notify a second distributed application of the update. The update is subsequently recognized and the notification indicator is cleared in order to continue I/O for the first distributed application and the second distributed application.
摘要翻译：一种用于在多个分布式应用的存储介质上实现虚拟磁盘预留的方法。该方法包括初始化多个虚拟盘，其中每个虚拟盘被实例化在物理存储介质上。为每个虚拟磁盘确定预约状态，并且执行使用至少一个虚拟磁盘的第一分布式应用程序。在由第一分布式应用程序更新至少一个虚拟磁盘的预留状态时，设置通知指示符以通知第二分布式应用程序更新。随后识别更新，并清除通知指示符，以便为第一个分布式应用程序和第二个分布式应用程序继续I / O。

4. 发明授权

US08560747B1 Associating heartbeat data with access to shared resources of a computer system 有权
标题翻译：将心跳数据与计算机系统的共享资源的访问相关联
公开(公告)号：US08560747B1
公开(公告)日：2013-10-15
申请号：US11676109
申请日：2007-02-16
申请人： Yuen-Lin Tan , Satyam Vaghani , Dragan Stancevic , Abhishek Rai , Daniel J. Scales
发明人： Yuen-Lin Tan , Satyam Vaghani , Dragan Stancevic , Abhishek Rai , Daniel J. Scales
IPC分类号： G06F12/14
CPC分类号： G06F9/526
摘要： A method, system and program code for implementing distributed locks to be maintained through the use of on disk heartbeats. An instance of a node need only maintain a single heartbeat for all locks associated with the node and all of its processes. The node updates its heartbeat by accessing common storage, either virtual or physical, and updating a timestamp value in its heartbeat within a predetermined time interval, otherwise the heartbeat becomes stale. Expired heartbeats can be cleared or broken to allow redistribution of any locks associated therewith. The inventive technique may be implemented in a traditional computer environment or in a fully or partially virtualized environment and requires no use of an IP network or a separate network based lock manager.
摘要翻译：用于实现通过使用磁盘心跳来维护分布式锁的方法，系统和程序代码。节点的实例只需要为与节点及其所有进程相关联的所有锁定保持单个心跳。节点通过访问虚拟或物理的公共存储，并在预定时间间隔内更新其心跳中的时间戳值来更新其心跳，否则心跳变得过时。可以清除或破坏过期心跳，以允许与其相关联的任何锁的重新分配。本发明的技术可以在传统的计算机环境中或在完全或部分虚拟化的环境中实现，并且不需要使用IP网络或单独的基于网络的锁管理器。

5. 发明申请

US20110010390A1 CONCURRENCY CONTROL IN A FILE SYSTEM SHARED BY APPLICATION HOSTS 有权
标题翻译：应用程序共享的文件系统中的同步控制
公开(公告)号：US20110010390A1
公开(公告)日：2011-01-13
申请号：US12502086
申请日：2009-07-13
申请人： Haripriya RAJAGOPAL , Satyam VAGHANI , Yuen-Lin TAN
发明人： Haripriya RAJAGOPAL , Satyam VAGHANI , Yuen-Lin TAN
IPC分类号： G06F17/30 , G06F15/173
CPC分类号： H04L29/08549 , G06F17/30168
摘要： A manager program for managing virtual machines includes a process which receives a notification message indicating an occurrence of an event affecting a data storage unit in a data storage system that supports a shared file system. The notification message might have come from a virtual machine host or resulted from a hardware reconfiguration. The manager program then determines whether another virtual machine host is sharing the data storage unit. The manager program might make this determination by polling each of the virtual machine hosts it manages or by checking information previously collected and stored in a database. If another virtual machine host is sharing the data storage unit, the manager program sends a refresh message to that virtual machine host that causes the virtual machine host to update information relating to the data storage unit in a cache associated with the virtual machine host.
摘要翻译：用于管理虚拟机的管理程序包括接收指示在支持共享文件系统的数据存储系统中影响数据存储单元的事件的发生的通知消息的处理。通知消息可能来自虚拟机主机或由硬件重新配置导致。管理程序然后确定另一个虚拟机主机是否共享数据存储单元。管理程序可以通过轮询其管理的每个虚拟机主机或通过检查先前收集并存储在数据库中的信息来进行此确定。如果另一个虚拟机主机正在共享数据存储单元，则管理程序向该虚拟机主机发送刷新消息，该虚拟机主机使虚拟机主机在与虚拟机主机相关联的高速缓存中更新与数据存储单元有关的信息。

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