A PATTERN BASED CONFIGURATION METHOD FOR MINIMIZING THE IMPACT OF COMPONENT FAILURES
    1.
    发明公开
    A PATTERN BASED CONFIGURATION METHOD FOR MINIMIZING THE IMPACT OF COMPONENT FAILURES 审中-公开
    基于结构的配置过程中尽量减少组件误差的影响

    公开(公告)号:EP3097480A1

    公开(公告)日:2016-11-30

    申请号:EP14706949.6

    申请日:2014-01-23

    Abstract: A configuration is generated for a software that is to be deployed for providing high service availability to satisfy configuration requirements. One or more configuration patterns are identified, each of which specifies a set of attribute values and an actual recovery action for a failed component as a configuration option of the software. The unchangeable attribute values of the software are matched with the configuration patterns to obtain a matching configuration pattern, whose actual recovery action incurs a smallest component failure recovery impact zone. The matching configuration pattern is selected as at least a portion of the configuration of the software. Then the changeable attribute values of the software are set to the corresponding attribute values of the matching configuration pattern to satisfy the configuration requirements.

    USING SYSTEM FRAME NUMBER TO IMPLEMENT TIMERS IN TELECOMMUNICATIONS SYSTEM HAVING REDUNDANCY
    4.
    发明授权
    USING SYSTEM FRAME NUMBER TO IMPLEMENT TIMERS IN TELECOMMUNICATIONS SYSTEM HAVING REDUNDANCY 有权
    用系统帧号与冗余电信系统时间捐助者实现

    公开(公告)号:EP1230599B1

    公开(公告)日:2004-05-06

    申请号:EP00981997.0

    申请日:2000-11-17

    CPC classification number: H04W56/00 G06F11/142 G06F11/1687 G06F11/2038

    Abstract: A wireless communication system utilizes system frame numbers (SFNs) upon which to base identification of frames of information transmitted by the communication system, as well as for expressing timeout values associated with process-set timers. The wireless communication system comprises a first (active) unit (40) which executes an operational process (OP), as well as a second (standby) unit (42) which executes the operational process in redundant manner with the first unit. The operational process sets a timer by computing an expiration system frame number to be used for determining a timeout value. The timer expires when a current system frame number reaches the calculated expiration system frame number. The SFN-based timeout values of the present invention are easily accessible and easily re-established upon reset and resynchronization of one of the redundant units.

    Highly available cluster virtual disk system
    5.
    发明公开
    Highly available cluster virtual disk system 审中-公开
    高可用虚拟磁盘系统组

    公开(公告)号:EP1197863A1

    公开(公告)日:2002-04-17

    申请号:EP01129497.2

    申请日:1999-05-07

    Abstract: A cluster implements a virtual disk system that provides each node of the cluster access to each storage device of the cluster. The virtual disk system provides high availability such that a storage device may be accessed and data access requests are reliably completed even in the presence of a failure. To ensure consistent mapping and file permission data among the nodes, data are stored in a highly available cluster database. Because the cluster database provides consistent data to the nodes even in the presence of a failure, each node will have consistent mapping and file permission data. A cluster transport interface is provided that establishes links between the nodes and manages the links. Messages received by the cluster transports interface are conveyed to the destination node via one or more links. The configuration of a cluster may be modified during operation. Prior to modifying the configuration, a reconfiguration procedure suspends data access requests and waits for pending data access requests to complete. The reconfiguration is performed and the mapping is modified to reflect the new configuration. The node then updates the internal representation of the mapping and resumes issuing data access requests.

    HIGHLY AVAILABLE CLUSTER VIRTUAL DISK SYSTEM
    6.
    发明公开
    HIGHLY AVAILABLE CLUSTER VIRTUAL DISK SYSTEM 有权
    高可用虚拟群体制版系统

    公开(公告)号:EP1084471A1

    公开(公告)日:2001-03-21

    申请号:EP99924138.3

    申请日:1999-05-07

    Abstract: A cluster implements a virtual disk system that provides each node of the cluster access to each storage device of the cluster. The virtual disk system provides high availability such that a storage device may be accessed and data access requests are reliably completed even in the presence of a failure. To ensure consistent mapping and file permission data among the nodes, data are stored in a highly available cluster database. Because the cluster database provides consistent data to the nodes even in the presence of a failure, each node will have consistent mapping and file permission data. A cluster transport interface is provided that establishes links between the nodes and manages the links. Messages received by the cluster transports interface are conveyed to the destination node via one or more links. The configuration of a cluster may be modified during operation. Prior to modifying the configuration, a reconfiguration procedure suspends data access requests and waits for pending data access requests to complete. The reconfiguration is performed and the mapping is modified to reflect the new configuration. The node then updates the internal representation of the mapping and resumes issuing data access requests.

    Fault tolerant multiple network servers
    7.
    发明公开
    Fault tolerant multiple network servers 失效
    Fehlertolerantes倍数Netzwerkserver

    公开(公告)号:EP0760503A1

    公开(公告)日:1997-03-05

    申请号:EP96304373.2

    申请日:1996-06-12

    Abstract: A fault tolerant multiple network server system in which multiple servers concurrently act as back-up servers for each other even while they are providing their own server services to the system. Rather than having an unused server monitoring for failure of a primary server and taking over control, each is act upon the network, but when its partner should fail, it assumes control of these partner servers storage subsystem. In this way, processing power of both servers is available during normal operation, but they each provide back-up capability for the other.

    Abstract translation: 一种容错多网络服务器系统,其中多个服务器即使在向系统提供其自己的服务器服务的同时也作为彼此的备份服务器。 而不是对主服务器的故障进行未使用的服务器监控并接管控制,而是每个都在网络上执行,但是当其合作伙伴失败时,它将承担对这些伙伴服务器存储子系统的控制。 以这种方式,两台服务器的处理能力在正常运行期间可用,但它们各自为另一台服务器提供备用功能。

    Method and apparatus for providing continuous availability of applications in a computer network
    10.
    发明公开
    Method and apparatus for providing continuous availability of applications in a computer network 失效
    一种用于在计算机网络的应用连续供应方法和装置。

    公开(公告)号:EP0395563A2

    公开(公告)日:1990-10-31

    申请号:EP90480058.8

    申请日:1990-04-10

    Abstract: The method and apparatus for maintaining active sessions between communicating logical units (10, 40) in a computer network when an application system fails without having to re-establish the active sessions, are carried out by activating a persistent session capability at one of the logical units. Thus, the active sessions can be suspended and maintained while attempts at recovery are made. Recovery attempts include restarting the failed applica­tion or switching the suspended sessions to an alternate instance of the logical unit (10). The suspended sessions are re-synchronized with the application system and ses­sion activity is resumed.

    Abstract translation: 用于维持在计算机网络中当一个应用程序系统发生故障,而无需重新建立活动的会话通信的逻辑单元(10,40)之间的活动会话的方法和设备,通过激活持续性会话能力在逻辑中的一个执行时间 单位。 因此,活动会话可以悬浮并同时在恢复尝试进行保持。 恢复尝试包括重新启动失败的应用程序或切换暂停的会话中的逻辑单元(10)的实例交替。 将悬浮的会话与所述应用系统重新同步,并且会话活动被恢复。

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