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    Fault tolerant storage controller utilizing tightly coupled dual controller modules
    331.
    发明授权
    Fault tolerant storage controller utilizing tightly coupled dual controller modules 失效
    固定连接的两用控制模块容错存储控制器

    公开(公告)号：EP0632379B1

    公开(公告)日：2004-08-18

    申请号：EP94108649.8

    申请日：1994-06-06

    Applicant: Compaq Computer Corporation

    Inventor： Sicola, Stephen J. ,  Jackson, James P. ,  Oakey, Roger L. ,  Brame, Richard G. ,  Mclean, Ronald H. ,  Walker, Michael D. ,  Fava, Thomas F. ,  Adams, Thomas Gene

    IPC: G06F11/16 ,  G06F11/20

    CPC classification number: G06F11/2089 ,  G06F11/1008 ,  G06F11/1662 ,  G06F11/201 ,  G06F11/2097

    Abstract: A fault tolerant storage controller utilizing tightly coupled dual controller modules. The controller modules each check to see if another controller module or cache module is present and, if so, then all configuration information with respect to the controller modules and attached devices are shared between them. Configuration information may be entered into either or both of the controller modules and the information is shared dynamically. Each cache module may be "locked" by an individual controller module to prevent the other controller module from inadvertently disturbing the contents of the other controller module's cache. During initialization, each controller module checks for the existence of an associated cache module and, if present, it is immediately "locked" by the controller module. Should a controller module fail or give an indication of a malfunction, the other controller module will disable or "kill" the malfunctioning controller module thereby resetting it and releasing any lock it may have had on its cache module. In those instances where the cache module is a write cache, the surviving controller module can resume operations where the malfunctioning controller module left off and complete any remaining writes to the disabled controller module's storage devices preventing the loss of any host computer data. The controller modules are tolerant of the other controller module failing and then rebooting and the sequence of events is detected and recognized by the surviving controller module such that it does not disable the one that failed. The dual controller modules communicate asynchronously to verify that they are each operational and to exchange and verify configuration information and to provide operational status dynamically.

    SYSTEM AND METHOD FOR ACCESSING A STORAGE AREA NETWORK AS NETWORK ATTACHED STORAGE
    332.
    发明公开
    SYSTEM AND METHOD FOR ACCESSING A STORAGE AREA NETWORK AS NETWORK ATTACHED STORAGE 审中-公开
    装置和方法用于访问存储区域网络上看到一个网络附加存储

    公开(公告)号：EP1382176A2

    公开(公告)日：2004-01-21

    申请号：EP01912847.9

    申请日：2001-02-21

    Applicant: Hewlett-Packard Company

    Inventor： PADOVANO, Michael

    IPC: H04L29/06 ,  G06F11/20 ,  H04L12/24

    CPC classification number: G06F11/201 ,  G06F11/2007 ,  G06F11/2033 ,  G06F11/2038 ,  G06F11/2046 ,  G06F11/2089 ,  H04L67/1002 ,  H04L67/1036 ,  H04L67/1097 ,  H04L69/329

    Abstract: A method, system, and apparatus for accessing a plurality of storage devices in a storage area network (SAN) as network attached storage (NAS) in a data communication network is described. A SAN server includes a first interface and a second interface. The first interface is configured to be coupled to the SAN. The second interface is coupled to a first data communication network. A NAS server includes a third interface and fourth interface. The third interface is configured to be coupled to a second data communication network. The fourth interface is coupled to the first data communication network. The SAN server allocates a first portion of the plurality of storage devices in the SAN to be accessible through the second interface to at least one first host coupled to the first data communication network. The SAN server allocates a second portion of the plurality of storage devices in the SAN to the NAS server. The NAS server configures access to the second portion of the plurality of storage devices to at least one second host coupled to the second data communication network.

    FAIL-OVER SWITCHING SYSTEM
    336.
    发明授权
    FAIL-OVER SWITCHING SYSTEM 失效
    切换系统的安全转移

    公开(公告)号：EP0938705B1

    公开(公告)日：2002-09-11

    申请号：EP97910942.8

    申请日：1997-10-08

    Applicant: DATA GENERAL CORPORATION

    Inventor： ESPY, James, W. ,  BLEIWESS, Scott ,  SOLOMON, Robert, C. ,  BAILEY, Brian, K. ,  EVERDELL, Peter

    IPC: G06F11/20

    CPC classification number: G06F11/2094 ,  G06F11/201 ,  G06F11/2089

    Abstract: A fail-over switch (100, 102) for use in a data storage system that connects each of a plurality of data storage devices (112) to each of two communication paths (126, 128). The switch (100, 102) may route requests to either of the two communication paths (126, 128). Switching may be accomplished by two switches (100, 102) connected to each other and each in connection with one of the two communication paths (126, 128). With one data storage controller (90) in communication with the data storage devices (112) over a first path (126) and a second data storage controller (92) in communication with the data storage devices (112) over a second path (128), the fail-over switch (100, 102) may be used upon detection of a malfunction on one path to switch a controller into connection with the remaining operable path so as to share that path with the other controller.

    PARTITIONING OF STORAGE CHANNELS USING PROGRAMMABLE SWITCHES
    337.
    发明公开
    PARTITIONING OF STORAGE CHANNELS USING PROGRAMMABLE SWITCHES 审中-公开
    内存通道故障采用可编程开关

    公开(公告)号：EP1031089A4

    公开(公告)日：2001-09-05

    申请号：EP98956581

    申请日：1998-11-04

    Applicant: SUN MICROSYSTEMS INC

    Inventor： VAN CRUYNINGEN PETER

    IPC: G06F3/06 ,  G06F11/20 ,  G06F13/00 ,  G06F13/38

    CPC classification number: G06F11/2092 ,  G06F3/061 ,  G06F3/0635 ,  G06F3/0689 ,  G06F11/201 ,  G06F13/385

    Abstract: A data storage system having a first storage channel (14a1), a first controller (10a) coupled to the first storage channel (14a1), a first storage device (16a) coupled to the first storage channel (14a1), a second storage channel (14a2), a second storage device (16b) coupled to the second storage channel (14a2), and a switch (18a) coupled to the first storage channel (14a1) and the second storage channel (14a2). The switch (18a) separates the first storage channel (14a1) from the second storage channel (14a2) in a first state and connects the first storage channel (14a1) and the second storage channel (14a2) in a second state.

    System and method for controlling multiple initiators in a fibre channel environment
    340.
    发明公开
    System and method for controlling multiple initiators in a fibre channel environment 失效
    系统和Verfahren zur Steuerung mehrerer启动器在einer光纤通道Umgebung

    公开(公告)号：EP0858200A2

    公开(公告)日：1998-08-12

    申请号：EP98300801.2

    申请日：1998-02-04

    Applicant: Compaq Computer Corporation

    Inventor： McCarty, James F.

    IPC: H04L29/06

    CPC classification number: G06F11/201 ,  H04L12/433 ,  H04L67/42

    Abstract: A computer system has a plurality of devices compatible with the Fibre Channel Protocol, wherein at least two of the devices are initiators. The computer system is provided with the capability to control and manage multiple initiators configured in an Arbitrated Loop. This capability is realized by manipulating the contents in outstanding_link_services arrays associated with the initiators.

    Abstract translation: 计算机系统具有与光纤通道协议兼容的多个设备，其中至少两个设备是启动器。 计算机系统具有控制和管理在仲裁循环中配置的多个启动器的功能。 该功能通过操作与启动器相关联的outstanding_link_services数组中的内容来实现。

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