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    • 7. 发明授权
    • High performance data path with XOR on the fly
    • 高性能的数据路径,XOR即时运行
    • US6161165A
    • 2000-12-12
    • US815193
    • 1997-03-11
    • Robert C. SolomonBrian K. BaileyRobert YatesPeter EverdellElizabeth H. Reeves
    • Robert C. SolomonBrian K. BaileyRobert YatesPeter EverdellElizabeth H. Reeves
    • G06F3/06G06F11/10G06F12/00G06F13/38
    • G06F11/1076G06F2211/1054
    • 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.
    • 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。
    • 10. 发明授权
    • Storage system with a diskless enclosure
    • 存储系统带有无盘机箱
    • US06901202B2
    • 2005-05-31
    • US10255291
    • 2002-09-26
    • Douglas E. PeekeBrian K. Bailey
    • Douglas E. PeekeBrian K. Bailey
    • G02B6/00G06F13/40
    • G06F13/409
    • Described is a storage system that operates with a diskless enclosure. The diskless enclosure comprises a communication port connected to an arbitrated loop, a plurality of storage ports each being connectable to a disk module, and port bypass control circuitry. The port bypass control circuitry includes retimer circuitry for retiming communication signals passing through the communication port to and from the arbitrated loop. The port bypass control circuitry forwards retimed communication signals to the arbitrated loop without any storage port of the plurality of storage ports having a disk module connected thereto.
    • 描述了一种使用无盘外壳操作的存储系统。 无盘外壳包括连接到仲裁环的通信端口,每个可连接到盘模块的多个存储端口和端口旁路控制电路。 端口旁路控制电路包括重新定时器电路,用于将通过通信端口的通信信号重新定向到仲裁环路和从仲裁环路。 端口旁路控制电路将重新定时通信信号转发到仲裁环路,而多个存储端口的任何存储端口都具有连接到其上的盘模块。