Secure recovery in a serverless distributed file system
    1.
    发明公开
    Secure recovery in a serverless distributed file system 有权
    在分布式文件系统的安全恢复,而不服务器

    公开(公告)号:EP1426848A3

    公开(公告)日:2005-03-30

    申请号:EP03026963.3

    申请日:2003-11-25

    Abstract: Systems and methods for secure file writes after a catastrophic event are allowed over an unauthenticated channel in a serverless distributed file system if an authenticator accompanies the secure file writes. The authenticator can be a power-of-attorney certificate with time limitations, a vector of message authenticated code, or a single message authenticator with secured with a secret shared among members of the serverless distributed file system. The serverless distributed file system includes at least 3 f + 1 participating computer members, with f representing a number of faults tolerable by the system. The group requires at least one authenticator for file creation and file uploads. Any changes to files stored among the members can be made over an unauthenticated channel if the file changes are secured by the authenticator and the group is able to verify the authenticator.

    Efficient changing of replica sets in distributed fault-tolerant computing system
    2.
    发明公开
    Efficient changing of replica sets in distributed fault-tolerant computing system 有权
    在分布式容错计算机系统复制的系统数据组的效率变化

    公开(公告)号:EP1617331A3

    公开(公告)日:2006-05-31

    申请号:EP05105188.6

    申请日:2005-06-14

    CPC classification number: G06F11/182 G06F11/187

    Abstract: A distributed computing system can be operated in a fault tolerant manner using a set of computing devices. A set of computing devices can tolerate a number of failures by implementing identical replicas of a state machine and selecting proposals. The set of computing devices participating in the distributed computing system by hosting replicas can be modified by adding or removing a computing device from the set, or by specifying particular computing devices for participation. Changing the participating computing devices in the set increases fault tolerance by replacing defective devices with operational devices, or by increasing the amount of redundancy in the system.

    Replicated virtual machine
    8.
    发明公开
    Replicated virtual machine 审中-公开
    Replizierte virtuelle机械

    公开(公告)号:EP1674992A1

    公开(公告)日:2006-06-28

    申请号:EP05112488.1

    申请日:2005-12-20

    CPC classification number: G06F11/1484

    Abstract: A mechanism that enables a nondeterministic client-server application to be run as a replicated state machine without requiring the application to be modified. A replicated state machine substrate is utilized to coordinate the execution of multiple virtual machine monitors, each of which runs an identical copy of an operating system and server application. The virtual machine monitors each act as deterministic state machines, virtualizing state machine characteristics and behaviors.

    Abstract translation: 一种使非确定性客户端 - 服务器应用程序作为复制状态机运行而不需要修改应用程序的机制。 复制状态机基板用于协调多个虚拟机监视器的执行,每个虚拟机监视器运行操作系统和服务器应用程序的相同副本。 虚拟机监控每个动作是确定性状态机,虚拟化状态机特性和行为。

    Efficient changing of replica sets in distributed fault-tolerant computing system
    9.
    发明公开
    Efficient changing of replica sets in distributed fault-tolerant computing system 有权
    在分布式容错计算机系统复制的系统数据组的效率变化

    公开(公告)号:EP1617331A2

    公开(公告)日:2006-01-18

    申请号:EP05105188.6

    申请日:2005-06-14

    CPC classification number: G06F11/182 G06F11/187

    Abstract: A distributed computing system can be operated in a fault tolerant manner using a set of computing devices. A set of computing devices can tolerate a number of failures by implementing identical replicas of a state machine and selecting proposals. The set of computing devices participating in the distributed computing system by hosting replicas can be modified by adding or removing a computing device from the set, or by specifying particular computing devices for participation. Changing the participating computing devices in the set increases fault tolerance by replacing defective devices with operational devices, or by increasing the amount of redundancy in the system.

    Abstract translation: 一种分布式计算系统可以以容错方式使用一组计算设备的操作。 一组计算设备可以通过实现一个状态机的相同的复制品和选择建议容忍失败次数。 该组由托管副本参与分布式计算系统的计算设备可以通过添加或从集合中删除一个计算设备进行修改,或通过用于参与指定特定计算设备。 在该组改变参与计算装置通过,或通过在系统中增加冗余的量替换为操作装置有缺陷的器件提高容错性。

    Secure recovery in a serverless distributed file system
    10.
    发明公开
    Secure recovery in a serverless distributed file system 有权
    在分布式文件系统的安全恢复,而不服务器

    公开(公告)号:EP1426848A2

    公开(公告)日:2004-06-09

    申请号:EP03026963.3

    申请日:2003-11-25

    Abstract: Systems and methods for secure file writes after a catastrophic event are allowed over an unauthenticated channel in a serverless distributed file system if an authenticator accompanies the secure file writes. The authenticator can be a power-of-attorney certificate with time limitations, a vector of message authenticated code, or a single message authenticator with secured with a secret shared among members of the serverless distributed file system. The serverless distributed file system includes at least 3 f + 1 participating computer members, with f representing a number of faults tolerable by the system. The group requires at least one authenticator for file creation and file uploads. Any changes to files stored among the members can be made over an unauthenticated channel if the file changes are secured by the authenticator and the group is able to verify the authenticator.

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