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    • 3. 发明授权
    • Computer interconnect system with transmit-abort function
    • 具有传输中止功能的计算机互连系统
    • US5020020A
    • 1991-05-28
    • US335130
    • 1989-04-07
    • Stephen T. PomfretRichard LaryYerell Boaen
    • Stephen T. PomfretRichard LaryYerell Boaen
    • H04L12/44
    • H04L12/44
    • A computer interconnect system uses packet data transmission over serial links connecting nodes of a network. The serial links may provide simultaneous dual paths for transmit/receive. An adapter couples a CPU or the like at a node to the serial link. The adapter includes a packet memory for temporarily storing transmit packets and receive packets, along with a port processor for executing the protocol. Packets of data are transferred between the system bus of the CPU and the packet memory by a pair of data movers, one for read and one for write. All of the serial links of the system are connected to a distribution hub which forwards a transmitted packet to a destination node based upon an address sent with the packet. If the path to the destination node is busy, the hub returns a "flow control" signal to the source node, and in response to this signal the transmitted packet is aborted so that time on the network is not wasted by needless transmission that must be discarded.
    • 计算机互连系统使用连接节点的串行链路的分组数据传输。 串行链路可以提供用于发送/接收的同时双路径。 适配器将节点处的CPU等类似地连接到串行链路。 适配器包括用于临时存储发送分组和接收分组的分组存储器,以及用于执行协议的端口处理器。 数据包通过一对数据移动器在CPU和数据包存储器的系统总线之间传输,一个用于读取,一个用于写入。 系统的所有串行链路都连接到分发中心,该分发中心基于与分组一起发送的地址将发送的分组转发到目的地节点。 如果目的地节点的路径正忙,则集线器向源节点返回“流量控制”信号,响应于该信号,发送的数据包被中止,从而网络上的时间不会因为不必要的传输而浪费 丢弃
    • 4. 发明申请
    • Apparatus and method for providing very large virtual storage volumes using redundant arrays of disks
    • 使用冗余磁盘阵列提供非常大的虚拟存储卷的装置和方法
    • US20060101205A1
    • 2006-05-11
    • US11315606
    • 2005-12-22
    • Theodore BruningRandal MarksJulia HodgesGerald GoldenRyan JohnsonBert MartensKaren WorkmanSusan ElkingtonRichard LaryJesse YandellStephen SicolaRoger Oakey
    • Theodore BruningRandal MarksJulia HodgesGerald GoldenRyan JohnsonBert MartensKaren WorkmanSusan ElkingtonRichard LaryJesse YandellStephen SicolaRoger Oakey
    • G06F12/16
    • G06F11/2094G06F3/0619G06F3/0665G06F3/0689G06F11/1076G06F11/2058G06F2211/1045
    • A very large virtual volume (e.g., in excess of 500 GB) is formed by distributing the disks in eleven, six-disk RAID-5 sets across the six busses of a primary local back-end controller. A spare disk is provided on each of the six busses. Each RAID-5 set is protected from the failure of a single disk by the spare disks on the busses, which can use the parity data stored in a RAID-5 set to rebuild the data stored on a failing disk and thereby restore redundancy to the RAID-5 set. Each RAID-5 set is also protected from the failure of a bus by the parity inherent in RAID-5. The RAID-5 sets are striped by a front-end controller connected to the primary local back-end controller, and the striped RAID-5 sets are presented to a host computer as a very large virtual volume. If the individual disks are 9.1 GB in size, the size of the very large virtual volume can reach 500.5 GB. If desired, additional groups of eleven, six-disk RAID-5 sets can be formed on additional back-end controllers for purposes of redundancy, cloning (which generates a copy of the data that can be used for off-line backup without interrupting read/write activities on the virtual volume), and disaster tolerance through remote storage. These additional groups of RAID-5 sets along with the RAID-5 sets from the primary local back-end controller, can be formed into mirror sets by the front-end controller, which then stripes the mirror sets and presents the striped mirror sets to the host computer as the very large virtual volume.
    • 通过在主本地后端控制器的六个总线上的十一个六磁盘RAID-5组中分配磁盘来形成非常大的虚拟卷(例如,超过500GB)。 六个总线中的每一个都提供备用磁盘。 每个RAID-5集合都受到总线上备用磁盘的单个磁盘故障的保护,可以使用存储在RAID-5集中的奇偶校验数据来重建存储在故障磁盘上的数据,从而将冗余恢复到 RAID-5设置。 每个RAID-5集合也可以通过RAID-5固有的奇偶校验来保护总线故障。 RAID-5组由连接到本地后端主控制器的前端控制器进行条带化,条带化的RAID-5集作为一个非常大的虚拟卷呈现给主机。 如果单个磁盘的大小为9.1 GB,则非常大的虚拟卷的大小可以达到500.5 GB。 如果需要,可以在额外的后端控制器上形成额外的十一个六磁盘RAID-5组,用于冗余,克隆(其生成可用于离线备份而不中断读取的数据的副本 /在虚拟卷上编写活动),以及通过远程存储进行容灾。 这些附加的RAID-5组与主要本地后端控制器的RAID-5组可以由前端控制器形成为镜像集,然后将镜像集条纹化并将条带镜集显示为 主机作为非常大的虚拟卷。