公开(公告)号：WO1998021657A1

公开(公告)日：1998-05-22

申请号：PCT/US1997018522

申请日：1997-10-08

Applicant: DATA GENERAL CORPORATION

Inventor： DATA GENERAL CORPORATION ,  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.

Abstract translation: 一种用于将多个数据存储设备（112）中的每一个连接到两个通信路径（126,128）中的每一个的数据存储系统中的故障切换开关（100,102）。 交换机（100,102）可以将请求路由到两个通信路径（126,128）中的任何一个。 可以通过彼此连接并且与两个通信路径（126,128）中的一个连接的两个交换机（100,102）来实现切换。 通过在第二路径（128）上与数据存储设备（112）通信的第一路径（126）和第二数据存储控制器（92）与数据存储设备（112）通信的一个数据存储控制器（90） ），故障切换开关（100,102）可以在检测到一个路径上的故障时使用，以将控制器切换成与剩余可操作路径连接，从而与另一控制器共享该路径。

公开(公告)号：EP0938705A1

公开(公告)日：1999-09-01

申请号：EP97910942.0

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 ,  G06F13

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.

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.