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1. 发明授权

US6161165A High performance data path with XOR on the fly 失效
标题翻译：高性能的数据路径，XOR即时运行
公开(公告)号：US6161165A
公开(公告)日：2000-12-12
申请号：US815193
申请日：1997-03-11
申请人： Robert C. Solomon , Brian K. Bailey , Robert Yates , Peter Everdell , Elizabeth H. Reeves
发明人： Robert C. Solomon , Brian K. Bailey , Robert Yates , Peter Everdell , Elizabeth H. Reeves
IPC分类号： G06F3/06 , G06F11/10 , G06F12/00 , G06F13/38
CPC分类号： G06F11/1076 , G06F2211/1054
摘要： A high performance data path for performing XOR on the fly. A first memory is connected to a first bus and a second memory is connected to a second bus selectively coupled to the first bus. Logic for performing an XOR can be switched into connection with the first and second bus for XORing data in a buffer with the data passed from one of the memories to the other memory. The result is replaced into the buffer to permit successive XORing. When reading from an interrelated group of disks such as a RAID 3 group, the data path permits an N-1 and go mode in which a read does not wait for data from the last disk to retrieve its data sector. If the last disk contains data (as opposed to parity) the data is obtained from the XORed data in the XOR buffer of the high performance data path. For writing data, the XOR on the fly generates the parity sector for writing at the completion of a write to an interrelated group of disks.
摘要翻译：用于执行XOR的高性能数据路径。第一存储器连接到第一总线，第二存储器连接到选择性地耦合到第一总线的第二总线。用于执行XOR的逻辑可以切换成与第一和第二总线连接，用于将数据从一个存储器传递到另一个存储器的缓冲器中的数据进行异或运算。结果被替换为缓冲区以允许连续的异或。当从相互关联的诸如RAID 3组的磁盘组读取数据路径时，数据路径允许N-1和去模式，其中读取不等待来自最后一个磁盘的数据来检索其数据扇区。如果最后一个磁盘包含数据（与奇偶校验相反），则从高性能数据路径的XOR缓冲区中的异或数据获取数据。对于写入数据，XOR在写入到相互关联的一组磁盘完成时，将产生用于写入的奇偶校验扇区。

2. 发明授权

US6128750A Fail-over switching system 失效
标题翻译：故障切换系统
公开(公告)号：US6128750A
公开(公告)日：2000-10-03
申请号：US105064
申请日：1998-06-26
申请人： James W. Espy , Scott Bleiweiss , Robert C. Solomon , Brian K. Bailey , Peter Everdell
发明人： James W. Espy , Scott Bleiweiss , Robert C. Solomon , Brian K. Bailey , Peter Everdell
IPC分类号： G06F11/00 , G06F11/20 , G06F13/00
CPC分类号： G06F11/2094 , G06F11/201 , G06F11/2089
摘要： A recovery method for use in a data storage system in which a plurality of data storage devices are connected to each of two communication paths. A switch may route requests to either of the two communication paths. With one data storage controller in communication with the data storage devices over a first path and a second data storage controller in communication with the data storage devices over a second path, upon detection of a malfunction on the first path, a data storage controller may request access to the other path. Thereafter, the controller may be switched into connection with the remaining operable path so as to share that path with the other controller.
摘要翻译：一种在数据存储系统中使用的恢复方法，其中多个数据存储装置连接到两个通信路径中的每一个。交换机可以将请求路由到两条通信路径之一。一个数据存储控制器通过第一路径与数据存储设备进行通信，而第二数据存储控制器通过第二路径与数据存储设备通信，一旦检测到第一路径上的故障，数据存储控制器就可以请求访问其他路径。此后，控制器可以切换成与剩余可操作路径连接，以便与另一个控制器共享该路径。

3. 发明授权

US5922077A Fail-over switching system 失效
标题翻译：故障切换系统
公开(公告)号：US5922077A
公开(公告)日：1999-07-13
申请号：US749311
申请日：1996-11-14
申请人： James W. Espy , Scott Bleiweiss , Robert C. Solomon , Brian K. Bailey , Peter Everdell
发明人： James W. Espy , Scott Bleiweiss , Robert C. Solomon , Brian K. Bailey , Peter Everdell
IPC分类号： G06F11/00 , G06F11/20 , G06F13/00
CPC分类号： G06F11/2094 , G06F11/201 , G06F11/2089
摘要： A recovery method and fail-over switch for use in a data storage system in which a plurality of data storage devices are connected to each of two communication paths. The switch may route requests to either of the two communication paths. Switching may be accomplished by two fail-over switches connected to each other and each in connection with one of the two communication paths. With one data storage controller in communication with the data storage devices over a first path and a second data storage controller in communication with the data storage devices over a second path, the fail-over switches 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.
摘要翻译：一种在数据存储系统中使用的恢复方法和故障切换开关，其中多个数据存储设备连接到两个通信路径中的每一个。交换机可以将请求路由到两个通信路径中的任何一个。可以通过彼此连接并且与两个通信路径中的一个连接的两个故障切换交换机来实现切换。通过第一路径与数据存储设备通信的一个数据存储控制器和通过第二路径与数据存储设备通信的第二数据存储控制器，可以在检测到一个路径上的故障时使用故障切换开关将控制器切换为与其余可操作路径连接，以便与其他控制器共享该路径。

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