利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.03 秒)

    Architecture for providing block-level storage access over a computer network
    11.
    发明授权
    Architecture for providing block-level storage access over a computer network 失效
    通过计算机网络提供块级存储访问的架构

    公开(公告)号：US07392291B2

    公开(公告)日：2008-06-24

    申请号：US09927894

    申请日：2001-08-10

    申请人： Douglas E. Jewett ,  Adam J. Radford ,  Bradley D. Strand ,  Jeffrey D. Chung ,  Joel D. Jacobson ,  Robert B. Haigler ,  Rod S. Thompson ,  Thomas L. Couch

    发明人： Douglas E. Jewett ,  Adam J. Radford ,  Bradley D. Strand ,  Jeffrey D. Chung ,  Joel D. Jacobson ,  Robert B. Haigler ,  Rod S. Thompson ,  Thomas L. Couch

    IPC分类号： G06F15/167 ,  G06F12/00

    CPC分类号： G06F3/0626 ,  G06F3/0644 ,  G06F3/0655 ,  G06F3/067 ,  G06F3/0689 ,  G06F21/80 ,  H04L63/08 ,  H04L67/1097 ,  H04L69/329

    摘要： A network-based storage system comprises one or more block-level storage servers that connect to, and provide disk storage for, one or more host computers (“hosts”) over logical network connections (preferably TCP/IP sockets). In one embodiment, each host can maintain one or more socket connections to each storage server, over which multiple I/O operations may be performed concurrently in a non-blocking manner. The physical storage of a storage server may optionally be divided into multiple partitions, each of which may be independently assigned to a particular host or to a group of hosts. Host driver software presents these partitions to user-level processes as one or more local disk drives. When a host initially connects to a storage server in one embodiment, the storage server initially authenticates the host, and then notifies the host of the ports that may be used to establish data connections and of the partitions assigned to that host.

    摘要翻译： 基于网络的存储系统包括通过逻辑网络连接（优选TCP / IP套接字）连接到一个或多个主机计算机（“主机”）并提供磁盘存储的一个或多个块级存储服务器。 在一个实施例中，每个主机可以维护到每个存储服务器的一个或多个套接字连接，多个I / O操作可以以非阻塞的方式同时执行。 存储服务器的物理存储可以可选地被划分成多个分区，每个分区可以独立地分配给特定主机或一组主机。 主机驱动程序软件将这些分区作为一个或多个本地磁盘驱动器呈现给用户级进程。 当主机在一个实施例中最初连接到存储服务器时，存储服务器最初认证主机，然后通知主机可用于建立数据连接的端口和分配给该主机的分区。

    Fault-tolerant computer system with auto-restart after power-fall
    15.
    发明授权
    Fault-tolerant computer system with auto-restart after power-fall 失效
    掉电后自动重启的容错计算机系统

    公开(公告)号：US5317752A

    公开(公告)日：1994-05-31

    申请号：US977734

    申请日：1992-11-16

    申请人： Douglas E. Jewett ,  Phil Webster ,  Dave Aldridge ,  Peter C. Norwood ,  Nikhil A. Mehta

    发明人： Douglas E. Jewett ,  Phil Webster ,  Dave Aldridge ,  Peter C. Norwood ,  Nikhil A. Mehta

    IPC分类号： G06F1/12 ,  G06F1/30 ,  G06F11/07 ,  G06F11/10 ,  G06F11/14 ,  G06F11/16 ,  G06F11/18 ,  G06F11/20 ,  G06F11/273 ,  G06F11/00

    CPC分类号： G06F11/1666 ,  G06F1/12 ,  G06F1/30 ,  G06F11/0724 ,  G06F11/073 ,  G06F11/0793 ,  G06F11/1441 ,  G06F11/1683 ,  G06F11/1687 ,  G06F11/1691 ,  G06F11/181 ,  G06F11/185 ,  G06F11/2007 ,  G06F11/2015 ,  G06F11/20 ,  G06F11/2005 ,  G06F11/2736

    摘要： A fault-tolerant computer system employs a power supply system including a battery backup so that upon AC power failure the system can execute an orderly shutdown, saving state to disk. A restart procedure restores the state existing at the time of power failure if the AC power has been restored by the time the shutdown is completed. This powerfail/autorestart procedure may be implemented in a fault-tolerant multiprocessor configuration having multiple identical CPUs executing the same instruction stream, with multiple, identical memory modules in the address space of the CPUs storing duplicates of the same data. The system detects faults in the CPUs and memory modules, and places a faulty unit offline while continuing to operate using the good units. The multiple CPUs are loosely synchronized, as by detecting events such as memory references and stalling any CPU ahead of others until all execute the function simultaneously; interrupts can be synchronized by ensuring that all CPUs implement the interrupt at the same point in their instruction stream. Memory references via the separate CPU-to-memory busses are voted at the three separate ports of each of the memory modules. I/O functions are implemented using two identical I/O busses, each of which is separately coupled to only one of the memory modules. A number of I/O processors are coupled to both I/O busses. I/O devices are accessed through a pair of identical (redundant) I/O processors, but only one is designated to actively control a given device; in case of failure of one I/O processor, however, an I/O device can be accessed by the other one without system shutdown.

    摘要翻译： 容错计算机系统采用包括电池备份的电源系统，使得在交流电源故障时，系统可以执行有序的关机，将状态保存到磁盘。 如果交流电源在关机完成时已恢复，则重新启动步骤将恢复停电时存在的状态。 该powerfail / autorestart过程可以在具有执行相同指令流的多个相同CPU的容错多处理器配置中实现，在存储相同数据的副本的CPU的地址空间中具有多个相同的存储器模块。 系统检测CPU和内存模块中的故障，并使故障单元脱机，并继续使用良好的单元进行操作。 多个CPU松动地同步，如通过检测诸如内存引用的事件，并阻止其他任何CPU之前的事件，直到所有同时执行该功能; 可以通过确保所有CPU在其指令流中的相同点实现中断来实现中断。 通过单独的CPU到内存总线的内存引用在每个内存模块的三个独立端口上进行投票。 使用两个相同的I / O总线实现I / O功能，每个总线单独耦合到只有一个存储器模块。 许多I / O处理器耦合到两个I / O总线。 I / O设备通过一对相同（冗余）I / O处理器访问，但只有一个被指定为主动控制给定的设备; 然而，在一个I / O处理器发生故障的情况下，I / O设备可以被另一个I / O设备访问，而不需要系统关闭。