Array disk controller for grouping host commands into a single virtual
host command
    31.
    发明授权
    Array disk controller for grouping host commands into a single virtual host command 失效
    阵列磁盘控制器,用于将主机命令分组为单个虚拟主机命令

    公开(公告)号:US5740465A

    公开(公告)日:1998-04-14

    申请号:US43841

    申请日:1993-04-07

    IPC分类号: G06F3/06 G06F13/12 G06F13/00

    摘要: A plurality of commands which may be sent sequentially from a host computer are interpreted by a host command interpreter to generate a disk command for each disk unit. When these commands make up an access demand for a single continuous area, they are grouped into a single command, which is executed substantially at the same time at each disk unit. Also, a plurality of RMW processing systems having different command issued to disk units are available. A selection condition is detected from the I/O demand information supplied by a host computer, and an optimum one of a plurality of RMW processing systems is selected and executed on the basis of the selection condition.

    摘要翻译: 主机命令解释器可以从主计算机顺序地发送多个命令,以生成每个磁盘单元的磁盘命令。 当这些命令构成对单个连续区域的访问需求时,它们被分组为单个命令,其基本上在每个磁盘单元处同时执行。 此外,具有发给盘单元的不同命令的多个RMW处理系统是可用的。 根据由主计算机提供的I / O需求信息检测选择条件,并且基于选择条件来选择和执行多个RMW处理系统中的最佳一个。

    Computer system including a device with a plurality of identifiers
    32.
    发明授权
    Computer system including a device with a plurality of identifiers 失效
    计算机系统,包括具有多个标识符的设备

    公开(公告)号:US5634111A

    公开(公告)日:1997-05-27

    申请号:US31880

    申请日:1993-03-16

    IPC分类号: G06F13/14 G06F3/06 G06F12/06

    摘要: A host computer is connected with a magnetic disk storage device by an SCSI bus. In the magnetic disk storage device, a plurality of partitions are set in a disk drive unit and have device identifiers (ID's) respectively allocated thereto as SCSI ID's=1, 2 and 3, which are supported by a disk controller. When the host computer has acquired the control of the SCSI bus through arbitration and has selected, for example, the partition with the device identifier SCSI ID=1, the disk controller permits the host computer to access the partition in response to the selection. Since the partitions are different in attributes, properties etc., they appear as magnetic disk storage devices that are separate from one another when viewed from the host computer. Thus, the single magnetic disk storage device can be managed as a plurality of storage devices of different nature.

    摘要翻译: 主机通过SCSI总线与磁盘存储设备连接。 在磁盘存储装置中,将多个分区设置在磁盘驱动单元中,并且具有分配给其的设备标识符(ID)作为SCSI ID = 1,2和3,它们由磁盘控制器支持。 当主计算机通过仲裁获取SCSI总线的控制,并且已经选择了例如具有设备标识符SCSI ID = 1的分区时,磁盘控制器允许主计算机响应于选择来访问分区。 由于分区在属性,属性等方面不同,所以当从主计算机观察时它们看起来是彼此分开的磁盘存储设备。 因此,单个磁盘存储装置可以被管理为具有不同性质的多个存储装置。

    Storage system for sending an access request from a host to a storage subsystem
    33.
    发明授权
    Storage system for sending an access request from a host to a storage subsystem 有权
    用于从主机向存储子系统发送访问请求的存储系统

    公开(公告)号:US07937527B2

    公开(公告)日:2011-05-03

    申请号:US12561462

    申请日:2009-09-17

    IPC分类号: G06F12/00

    摘要: A disk storage system containing a storage device having a record medium for holding the data, a plurality of storage sub-systems having a controller for controlling the storage device, a first interface node coupled to a computer using the data stored in the plurality of storage sub-systems, a plurality of second interface nodes connected to the storage sub-systems, a switch connecting to a first interface node and a plurality of second interface nodes to perform frame transfer therebetween based on node address information added to the frame. The first interface node has a configuration table to store structural information for the memory storage system and in response to the frame sent from the computer, analyzes the applicable frame, converts information relating to the transfer destination of that frame based on structural information held in the configuration table, and transfers that frame to the switch.

    摘要翻译: 一种包含具有用于保存数据的记录介质的存储装置的磁盘存储系统,具有用于控制存储装置的控制器的多个存储子系统,使用存储在多个存储器中的数据耦合到计算机的第一接口节点 子系统,连接到存储子系统的多个第二接口节点,连接到第一接口节点和多个第二接口节点的交换机,基于添加到帧的节点地址信息来执行帧间传输。 第一接口节点具有用于存储存储器系统的结构信息的配置表,并且响应于从计算机发送的帧,分析适用的帧,基于在该帧中保存的结构信息,转换与该帧的传送目的地相关的信息 配置表,并将该帧传输到交换机。

    System executing log data transfer synchronously and database data transfer asynchronously
    34.
    发明授权
    System executing log data transfer synchronously and database data transfer asynchronously 有权
    系统同步执行日志数据传输和异步数据库数据传输

    公开(公告)号:US07890461B2

    公开(公告)日:2011-02-15

    申请号:US10819191

    申请日:2004-04-07

    IPC分类号: G06F7/00 G06F17/00

    摘要: A disaster recovery system and a method therefor, having: a function for receiving write requests from a host computer to write log information indicating the contents of a database process executed for a database buffer on a main site, database data updated on the database buffer and status information indicating the position of log information used for disaster recovery; a function for transferring the received write request for log information to a recovery site by a synchronous remote copy process; and a function for transferring the received write request for database data to the recovery site by an asynchronous remote copy process. While remote copy can be executed at a long distance without data loss, the deterioration of the performance of a database process on a main site can be suppressed.

    摘要翻译: 一种灾难恢复系统及其方法,具有:接收来自主计算机的写入请求的功能,用于写入表示在主站点上为数据库缓冲器执行的数据库处理的内容的日志信息,数据库缓冲器上更新的数据库数据, 指示用于灾难恢复的日志信息的位置的状态信息; 用于通过同步远程复制处理将接收到的日志信息写入请求传送到恢复站点的功能; 以及通过异步远程复制处理将接收的数据库数据写入请求传送到恢复站点的功能。 虽然远程复制可以在没有数据丢失的情况下长时间执行,但是可以抑制主站点上的数据库处理的性能的恶化。

    Remote copy network
    35.
    发明授权
    Remote copy network 有权
    远程复制网络

    公开(公告)号:US07809909B2

    公开(公告)日:2010-10-05

    申请号:US11935780

    申请日:2007-11-06

    IPC分类号: G06F12/00

    摘要: A remote copy network realizes low-cost multi-hop remote copying. Remote copying is executed via a remote copy network (RCN) having a source edge device connected to a source storage and a target edge device connected to a target storage. Because the RCN is a network provided by a network business, a user having a storage device can execute remote copying without owning or managing the RCN. The source edge device receives remote copy I/O from the source storage, creates a log entry to which a sequential number is added, and sends the log entry to a target edge device. The target edge device acquires the remote copy I/O from the received log entry, and sends the remote copy I/O to the target storage in the order of the sequential number.

    摘要翻译: 远程复制网络实现了低成本的多跳远程复制。 通过远程复制网络(RCN)执行远程复制,该远程复制网络具有连接到源存储器的源边缘设备和连接到目标存储器的目标边缘设备。 由于RCN是由网络业务提供的网络,具有存储设备的用户可以执行远程复制而不拥有或管理RCN。 源边缘设备从源存储器接收远程复制I / O,创建添加了序列号的日志条目,并将日志条目发送到目标边缘设备。 目标边缘设备从接收到的日志条目中获取远程复制I / O,并按照序列号的顺序将远程复制I / O发送到目标存储。

    Clustered storage system and its control method
    36.
    发明授权
    Clustered storage system and its control method 失效
    集群存储系统及其控制方法

    公开(公告)号:US07761677B2

    公开(公告)日:2010-07-20

    申请号:US10300555

    申请日:2002-11-20

    IPC分类号: G06F12/16

    摘要: A clustered storage system includes a plurality of nodes and a management server that consolidates physical position information concerning data in each of the nodes. The management server includes a process to relate the information to the configuration of the clustered storage system and the configuration of each node and present such relations. Each node has a process to obtain the size and load of resources that are used in processing. The management server has a process to collect and tally such resource usage status from each node, and a process to relate the resource usage status, the data information and configuration information to each other and present the relations in a hierarchy. The clustered storage system has a process to move logical volumes among nodes in a manner transparent to the host computer. The management server has a process to support the selection of source data and destination physical position through information display, and a process to receive instruction for such move and to direct the clustered storage system of such move.

    摘要翻译: 集群存储系统包括多个节点和整合关于每个节点中的数据的物理位置信息的管理服务器。 管理服务器包括将信息与集群存储系统的配置和每个节点的配置相关联并呈现这种关系的过程。 每个节点都有一个过程来获取处理中使用的资源的大小和负载。 管理服务器具有从每个节点收集和分类这种资源使用状态的过程,以及将资源使用状态,数据信息和配置信息彼此相关联并呈现在层次结构中的关系的过程。 集群存储系统具有以对主计算机透明的方式在节点之间移动逻辑卷的过程。 管理服务器具有通过信息显示来支持选择源数据和目的地物理位置的过程,以及接收这种移动的指令并引导集群存储系统进行这种移动的过程。

    VOLUME AND FAILURE MANAGEMENT METHOD ON A NETWORK HAVING A STORAGE DEVICE
    37.
    发明申请
    VOLUME AND FAILURE MANAGEMENT METHOD ON A NETWORK HAVING A STORAGE DEVICE 有权
    具有存储设备的网络的体积和失败管理方法

    公开(公告)号:US20100122125A1

    公开(公告)日:2010-05-13

    申请号:US12687367

    申请日:2010-01-14

    IPC分类号: G06F11/07

    摘要: A SAN manager acquires configuration information from devices constituting a SAN and produces a corresponding relationship between a host computer and a virtual volume (virtual volume mapping) and a corresponding relationship between the host computer and a real volume (real volume mapping). Based on those pieces of mapping information, the SAN manager outputs a corresponding relationship between virtual and real volumes. Meanwhile, the failure notification messages received from the in-SAN devices are construed to detect and output an influence of the failure upon the access to a real or virtual volume. Furthermore, when receiving a plurality of failure notifications from the devices connected to the SAN, the plurality of failure notifications are outputted with an association based on the corresponding relationship between real and virtual volumes.

    摘要翻译: SAN管理器从构成SAN的设备中获取配置信息,并在主机与虚拟卷(虚拟卷映射)之间产生对应的关系以及主计算机与实际卷(实际卷映射)之间的对应关系。 基于这些映射信息,SAN管理器输出虚拟卷和实际卷之间的对应关系。 同时,从SAN设备接收的故障通知消息被解释为检测并输出故障对真实或虚拟卷的访问的影响。 此外,当从连接到SAN的设备接收到多个故障通知时,基于实际卷和虚拟卷之间的对应关系,通过关联来输出多个故障通知。

    Disaster recovery processing method and apparatus and storage unit for the same
    39.
    发明授权
    Disaster recovery processing method and apparatus and storage unit for the same 有权
    灾难恢复处理方法及装置及储存单位

    公开(公告)号:US07562103B2

    公开(公告)日:2009-07-14

    申请号:US11227180

    申请日:2005-09-16

    IPC分类号: G06F17/30 G06F11/00

    摘要: A technique capable of constructing a disaster recovery system reduced in performance degradation of a primary system is provided. The technique includes a step of conducting synchronous writing of log information into a secondary storage subsystem in a secondary system when a write request received from a host computer is a write request of log information, a step of temporarily storing a write request and conducting asynchronous writing into the secondary storage subsystem when the received write request is a write request of database data or status information, a step of modifying log information, data in a database area, and status information in the secondary storage subsystem according to contents of a write request received from a primary storage subsystem, and a step of recovering the database area according to contents of log information in a location indicated by the status information.

    摘要翻译: 提供了一种能够构建灾难恢复系统的技术,降低了主系统的性能下降。 该技术包括当从主计算机接收的写请求是日志信息的写请求时,将日志信息同步写入次系统中的次存储子系统的步骤,临时存储写请求并进行异步写入的步骤 当所接收到的写入请求是数据库数据或状态信息的写入请求时,进入辅助存储子系统,根据所接收到的写入请求的内容,修改日志信息,数据库区域中的数据和辅助存储子系统中的状态信息 以及根据状态信息指示的位置中的日志信息的内容来恢复数据库区域的步骤。

    DATABASE RECOVERY METHOD APPLYING UPDATE JOURNAL AND DATABASE LOG
    40.
    发明申请
    DATABASE RECOVERY METHOD APPLYING UPDATE JOURNAL AND DATABASE LOG 有权
    数据库恢复方法应用更新日志和数据库日志

    公开(公告)号:US20090125568A1

    公开(公告)日:2009-05-14

    申请号:US12329143

    申请日:2008-12-05

    IPC分类号: G06F17/30 G06F12/00 G06F12/16

    摘要: A database recovery method including a computer and a storage system, in which: the storage system includes a disk drive for storing data; the disk drive includes a data volume, a snapshot volume, a database log for storing an update log, and an update journal for storing update information of the data volume; a recovery point for indicating an end point of a range to which the update journal is to be applied and a starting point of a range to which the database log is to be applied is recorded to recover the data volume; and when the database is to be recovered, the update journal is applied to the snapshot volume up to the recovery point, the snapshot volume after the update is switched to the data volume, and the database log after the recovery point is applied to the data volume that is set by switching.

    摘要翻译: 一种包括计算机和存储系统的数据库恢复方法,其中:存储系统包括用于存储数据的磁盘驱动器; 磁盘驱动器包括数据卷,快照卷,用于存储更新日志的数据库日志和用于存储数据卷的更新信息的更新日志; 记录用于指示要应用更新日志的范围的终点的恢复点和要应用数据库日志的范围的起始点,以恢复数据量; 要恢复数据库时,将更新日志应用于直到恢复点的快照卷,将更新后的快照卷切换到数据卷,并将恢复点后的数据库日志应用于数据 通过切换设置的音量。