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2. 发明公开

KR1020020046955A 고가용성 대용량 저장 시스템 및 이의 생성 방법 失效
标题翻译：系统与连接方法
公开(公告)号：KR1020020046955A
公开(公告)日：2002-06-21
申请号：KR1020010078119
申请日：2001-12-11
申请人： 에이치피 인크.
发明人： 디블랑크제임스제이 , 디키데이비드 , 화이트제임스로렌스
IPC分类号： G06F3/06
CPC分类号： G06F1/184 , G06F1/187 , Y10T307/344 , Y10T307/832
摘要： PURPOSE: A system and a connection method are provided to enhance the reliability of storage systems. CONSTITUTION: The storage subsystem(100) includes eight data storage devices(102-109), commonly magnetic disk drives. The data storage devices(102-109) are electronically connected to a midplane circuit board(110). The midplane circuit board provides data, control signal, and power interconnection with input/output(I/O) controllers and power supplies. Two redundant I/O controller cards(112, 113) are also connected to the midplane circuit board(110) via data, control signal, and power lines. I/O controller cards(112, 113) are additionally interconnected with one or more communications media, such as fiber channels, via fiber channel adaptors(114-117). In certain implementations, the two fiber channel adapters on an I/O controller card serves as redundant connections to a single fiber channel, in other implementations, the two fiber channel adaptors mat serve to daisy chain the data storage subsystem into a larger arbitrated loop. The I/O controller cards(112-113) implement communications protocols and I/O bus protocols to transfer data and commands from the communications media to the data storage devices(102-109) and transfer data and command execution status information from the data storage devices(102-109) to the communications medium. The storage subsystem is highly available because the data stored in the data storage devices(102-109) can be accessed by remote computers after a complete failure of either of the I/O controller cards(112 or 113) or failure of either of two communications media interconnecting the data storage devices(102-109) with remote computers. By including redundant I/O controller cards(112-114), the highly available storage subsystem has eliminated a single point of failure present in previous storage subsystems that included only a single I/O controller card for interconnecting the data storage devices of the storage subsystem to a communications medium.
摘要翻译：目的：提供系统和连接方法，以提高存储系统的可靠性。构成：存储子系统（100）包括八个数据存储设备（102-109），通常为磁盘驱动器。数据存储设备（102-109）电连接到中平面电路板（110）。中平面电路板提供与输入/输出（I / O）控制器和电源的数据，控制信号和电源互连。两个冗余I / O控制器卡（112,113）也通过数据，控制信号和电力线连接到中平面电路板（110）。 I / O控制器卡（112,113）通过光纤通道适配器（114-117）另外与诸如光纤通道的一个或多个通信介质互连。在某些实现中，I / O控制器卡上的两个光纤通道适配器用作到单个光纤通道的冗余连接，在其他实现中，两个光纤通道适配器垫用于将数据存储子系统菊花链链接成更大的仲裁环路。 I / O控制器卡（112-113）实现通信协议和I / O总线协议，以将数据和命令从通信介质传送到数据存储设备（102-109），并从数据传输数据和命令执行状态信息存储设备（102-109）传送到通信介质。存储子系统是高度可用的，因为存储在数据存储设备（102-109）中的数据可以在任一I / O控制卡（112或113）完全故障之后由远程计算机访问，或二者中的任何一个故障将数据存储设备（102-109）与远程计算机互连的通信介质。通过包括冗余I / O控制器卡（112-114），高可用性存储子系统消除了先前存储子系统中存在的单点故障，其中仅包含单个I / O控制器卡，用于互连存储器的数据存储设备子系统到通信媒体。

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