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    DETECTION AND HANDLING OF ALUA PREFERENCES AND STATE TRANSITIONS BY HOST
    272.
    发明公开
    DETECTION AND HANDLING OF ALUA PREFERENCES AND STATE TRANSITIONS BY HOST 有权
    检测和ALUA偏好控制和状态的变化由主机

    公开(公告)号：EP2638469A1

    公开(公告)日：2013-09-18

    申请号：EP11776935.6

    申请日：2011-09-30

    Applicant: Symantec Corporation

    Inventor： VEMURI, Hari, Krishna ,  GOSAVI, Tushar, Ravindranath ,  GANDHI, Neha, Rajendraprasad

    IPC: G06F11/20

    CPC classification number: G06F11/2092 ,  G06F3/0613 ,  G06F3/0635 ,  G06F3/067 ,  G06F11/201

    Abstract: Various systems and methods can discover asymmetric logical unit (LUN) access (ALU A) preferences and/or state transitions and use those preferences and/or state transitions to control how a host accesses a LUN in an ALUA array. One such method involves detecting a preferred controller for a LUN and then detecting that a current owner controller of the LUN is not the preferred controller. In response, the method can initiate an ownership change from the current owner controller to the preferred controller. Another method involves detecting an initial state of a first controller with respect to a LUN. The method then detects a subsequent state of the first controller with respect to the LUN subsequent to detecting the initial state. The method can then cause a computing device to access the LUN via a second controller, in response to the subsequent state not being the active optimized state.

    Storage array assist architecture
    275.
    发明公开
    Storage array assist architecture 审中-公开
    Speicheranordnungshilfsarchitektur

    公开(公告)号：EP2264585A2

    公开(公告)日：2010-12-22

    申请号：EP10156335.1

    申请日：2010-03-12

    Applicant: LSI Corporation

    Inventor： Dekoning, Rodney A. ,  Weber, Bret S. ,  Delaney, William Patrick ,  Day, Kenneth F.

    IPC: G06F3/06

    CPC classification number: G06F3/065 ,  G06F3/0607 ,  G06F3/0614 ,  G06F3/0635 ,  G06F3/0658 ,  G06F3/0689 ,  G06F11/1441 ,  G06F11/201 ,  G06F11/2089

    Abstract: Disclosed is a storage system architecture. An Environmental service module (ESM) is coupled to one or more array controllers. The ESM is configured with a central processing unit and one or more assist functions. The assist functions may include nonvolatile memory. This nonvolatile memory may be used for write caching, mirroring data, and/or configuration data. The assist functions, or the ESM, may be controlled by the array controllers using SCSI or RDMA commands.

    Abstract translation: 公开了一种存储系统架构。 环境服务模块（ESM）耦合到一个或多个阵列控制器。 ESM配置有中央处理单元和一个或多个辅助功能。 辅助功能可以包括非易失性存储器。 该非易失性存储器可用于写入高速缓存，镜像数据和/或配置数据。 辅助功能或ESM可以由阵列控制器使用SCSI或RDMA命令控制。

    Storage subsystem and control method thereof
    277.
    发明公开
    Storage subsystem and control method thereof 有权
    说话者系统和动物园Steuerverfahren

    公开(公告)号：EP2088508A2

    公开(公告)日：2009-08-12

    申请号：EP08253957.8

    申请日：2008-12-10

    Applicant: Hitachi Ltd.

    Inventor： Inoue, Tetsuya ,  Suzuki, Hiroshi ,  Koga, Tsutomu

    IPC: G06F11/20

    CPC classification number: G06F11/201 ,  G06F11/2089

    Abstract: Provided is a storage subsystem capable of inhibiting the deterioration in system performance to a minimum while improving reliability and availability. This storage subsystem includes a first controller for controlling multiple drive units connected via multiple first switch devices, and a second controller for controlling the multiple drive units connected via multiple second switch devices associated with the multiple first switch devices. This storage subsystem also includes a connection path that mutually connects the multiple first switch devices and the corresponding multiple second switch devices. When the storage [sub]system detects the occurrence of a failure, it identifies the fault site in the connection path, and changes the connection configuration of the switch device so as to circumvent the fault site.

    Abstract translation: 提供了一种能够在提高可靠性和可用性的同时将系统性能的恶化最小化的存储子系统。 该存储子系统包括用于控制经由多个第一开关装置连接的多个驱动单元的第一控制器，以及用于控制通过与多个第一开关装置相关联的多个第二开关装置连接的多个驱动单元的第二控制器。 该存储子系统还包括连接多个第一交换设备和相应的多个第二交换设备的连接路径。 当存储[sub]系统检测到故障发生时，它识别连接路径中的故障现场，并更改交换设备的连接配置，以规避故障现场。

    SYSTEMS AND METHODS FOR OBTAINING ULTRA-HIGH DATA AVAILABILITY AND GEOGRAPHIC DISASTER TOLERANCE
    278.
    发明公开
    SYSTEMS AND METHODS FOR OBTAINING ULTRA-HIGH DATA AVAILABILITY AND GEOGRAPHIC DISASTER TOLERANCE 有权
    系统和方法来实现超高速的数据可用性和地理容灾

    公开(公告)号：EP1985046A1

    公开(公告)日：2008-10-29

    申请号：EP07757004.2

    申请日：2007-02-14

    Applicant: Yotta Yotta, Inc.

    Inventor： HAGGLUND, Dale ,  UNRAU, Ron ,  GRAULICH, Craig ,  KARPOFF, Wayne

    IPC: H04J1/16

    CPC classification number: G06F11/2058 ,  G06F11/201 ,  G06F11/2064 ,  G06F11/2074 ,  G06F11/2079 ,  G06F2201/82 ,  H04L67/1095 ,  H04L67/1097 ,  H04L67/2842 ,  H04L69/40

    Abstract: Network data storage systems and methods allow computers reading and writing data at a plurality of data centers separated by, potentially, large distances to replicate data between sites such that the data is protected from failures, including complete Site failures, while not allowing network latency to significantly impede the performance of read or wπte operations. Continued access to all data is provided even after a single failure of any component of the system or after any complete failure of all equipment regardless of geographic location. Wπte data is replicated synchronously from Active Sites, e g., sites where servers are wπting data to storage resources, to Protection Sites located sufficiently close to Active Sites such that network latency will not significantly impact performance, but sufficiently far apart such that a regional disaster is unlikely to affect both sites. Write data is then asynchronously copied to Active Sites, possibly at distant sites.

    Clustered storage network
    280.
    发明公开
    Clustered storage network 审中-公开
    Geclustertes Speichernetzwerk

    公开(公告)号：EP1933536A2

    公开(公告)日：2008-06-18

    申请号：EP07254529.6

    申请日：2007-11-21

    Applicant: QUANTUM CORPORATION

    Inventor： Maroney, John Edward ,  Chakravarty, Tridib

    IPC: H04L29/08

    CPC classification number: G06F3/0689 ,  G06F3/0604 ,  G06F3/0646 ,  G06F11/1076 ,  G06F11/2005 ,  G06F11/2007 ,  G06F11/201 ,  G06F11/2012 ,  G06F11/2015 ,  G06F11/2035 ,  G06F11/2089 ,  H04L67/1097

    Abstract: A data storage network is provided. The network includes a client connected to the data storage network; a plurality nodes on the data storage network, wherein each data node has two or more RAID controllers, wherein a first RAID controller of a first node is configured to receive a data storage request from the client and to generate RAID parity data on a data set received from the client, and to store all of the generated RAID parity data on a single node of the plurality of nodes.

    Abstract translation: 提供数据存储网络。 网络包括连接到数据存储网络的客户端; 数据存储网络上的多个节点，其中每个数据节点具有两个或更多个RAID控制器，其中第一节点的第一RAID控制器被配置为从客户端接收数据存储请求并且在数据集上生成RAID奇偶校验数据 从客户端接收并将所有生成的RAID奇偶校验数据存储在多个节点的单个节点上。

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