Assigning alias addresses to base addresses
    1.
    发明申请
    Assigning alias addresses to base addresses 有权
    为基地址分配别名地址

    公开(公告)号:US20070136552A1

    公开(公告)日:2007-06-14

    申请号:US11299089

    申请日:2005-12-08

    IPC分类号: G06F12/00

    摘要: Provided are a method, system, and article of manufacture for assigning alias addresses to base addresses. An assignment is provided of base addresses to the devices, wherein the base addresses are used to access the devices assigned to the base addresses. An assignment is provided of a plurality of alias addresses to an alias address pool. The alias addresses in the alias address pool are capable of being dynamically assigned to the devices to service I/O requests to the devices. An Input/Output (I/O) request to access one target device comprising one of the devices is processed. A determination is made as to whether the base address assigned to the target device is available. One alias address is assigned to the target device in response to determining that the base address is not available. The I/O request is issued to the assigned alias address to transmit the request to the target device.

    摘要翻译: 提供了一种用于将别名地址分配给基地址的方法,系统和制品。 向设备提供基地址的分配,其中基地址用于访问分配给基地址的设备。 向别名地址池提供多个别名地址的分配。 别名地址池中的别名地址能够被动态分配给设备,以便为设备提供I / O请求。 处理包括其中一个设备的访问一个目标设备的输入/输出(I / O)请求。 确定分配给目标设备的基地址是否可用。 响应于确定基地址不可用,将一个别名地址分配给目标设备。 I / O请求被发送到指定的别名地址,以将请求发送到目标设备。

    Reassigning storage volumes from a failed processing system to a surviving processing system
    2.
    发明申请
    Reassigning storage volumes from a failed processing system to a surviving processing system 失效
    将存储卷从故障处理系统重新分配给尚存的处理系统

    公开(公告)号:US20060123273A1

    公开(公告)日:2006-06-08

    申请号:US10990038

    申请日:2004-11-15

    IPC分类号: G06F11/00

    CPC分类号: G06F11/2092

    摘要: Provided are a method, system, and program for reassigning storage volumes from a failed processing system to a surviving processing system. A first processing system detects a failure of a second processing system. The first processing system determines device groups of storage devices managed by the failed second processing system and determines for each determined device group, hosts that connect to storage devices in the device group. The first processing system sends, for each device group, a unit check to each determined host indicating failure of each device group through one storage device in the device group to which the determined host connects. The determined hosts execute instructions to terminate any I/O operations in progress on the storage devices in the device group in response to the unit check indicating failure of one storage device in the device group and issue, a command to one storage device for the device group to end the busy condition.

    摘要翻译: 提供了一种用于将存储卷从故障处理系统重新分配给幸存处理系统的方法,系统和程序。 第一处理系统检测第二处理系统的故障。 第一处理系统确定由故障的第二处理系统管理的存储设备的设备组,并且为每个确定的设备组确定连接到设备组中的存储设备的主机。 第一处理系统针对每个设备组,通过所确定的主机连接的设备组中的一个存储设备向每个确定的主机发送指示每个设备组的故障的单元检查。 确定的主机响应于单元检查指示设备组中的一个存储设备的故障并发出的命令,执行指令以终止设备组中的存储设备上正在进行的任何I / O操作,命令到设备的一个存储设备 组结束繁忙的状况。

    Apparatus, system, and method for accessing a preferred path through a storage controller
    3.
    发明申请
    Apparatus, system, and method for accessing a preferred path through a storage controller 有权
    用于通过存储控制器访问优选路径的装置,系统和方法

    公开(公告)号:US20060277310A1

    公开(公告)日:2006-12-07

    申请号:US11142018

    申请日:2005-06-01

    IPC分类号: G06F15/173 G06F15/16

    摘要: An apparatus, system, and method are disclosed for accessing a preferred path through a storage controller. A request module receives a request from a host to identify a preferred path from the host to a control unit image. A response module reports the preferred path to the host. A connection module connects the host through the preferred path to the control unit image. In one embodiment, a detection module detects a failure of a first interconnection module comprising the preferred path. The connection module may re-connect the host to the control unit image through a non-preferred path comprising a second interconnection module in response to the failure of the first interconnection module.

    摘要翻译: 公开了一种用于访问通过存储控制器的优选路径的装置,系统和方法。 请求模块从主机接收请求以识别从主机到控制单元图像的优选路径。 响应模块报告主机的首选路径。 连接模块通过首选路径将主机连接到控制单元图像。 在一个实施例中,检测模块检测包括优选路径的第一互连模块的故障。 响应于第一互连模块的故障,连接模块可以通过包括第二互连模块的非优选路径将主机重新连接到控制单元图像。

    Communication path management system
    4.
    发明申请
    Communication path management system 审中-公开
    通信路径管理系统

    公开(公告)号:US20060242156A1

    公开(公告)日:2006-10-26

    申请号:US11110553

    申请日:2005-04-20

    IPC分类号: G06F17/30 G06F7/00

    CPC分类号: H04L67/1097 H04L69/14

    摘要: A communication-path management system includes a path-detection component for identifying all communications paths between a host computer, through a controller, to a data storage device. Once identified, the communication paths are incorporated into a logical-path mask. The path-detection component recognizes each path as either preferred or non-preferred based on latency, bandwidth, availability, or other user-defined criteria and divides the logical-path mask into a preferred path subset and a non-preferred path subset. If a valid path exists in the preferred path subset, all communications from the host computer to the data storage device transit paths belonging to this subset. Otherwise, active control is given to the non-preferred path subset. A channel subsystem manages actual communication based on resource allocation and contention using the currently active subset.

    摘要翻译: 通信路径管理系统包括用于识别通过控制器的主机与数据存储设备之间的所有通信路径的路径检测组件。 一旦识别,通信路径被合并到逻辑路径掩码中。 路径检测组件基于延迟,带宽,可用性或其他用户定义的标准将每个路径识别为优选的或不优选的,并将逻辑路径掩码划分成优选的路径子集和非优选的路径子集。 如果优选路径子集中存在有效的路径,则从主计算机到数据存储设备的所有通信都将传输属于此子集的路径。 否则,给予非优选路径子集的主动控制。 信道子系统使用当前活动的子集来管理基于资源分配和争用的实际通信。

    Transfer of Error-Analysis and Statistical Data in a Fibre Channel Input/Output System
    6.
    发明申请
    Transfer of Error-Analysis and Statistical Data in a Fibre Channel Input/Output System 有权
    在光纤通道输入/输出系统中传输误差分析和统计数据

    公开(公告)号:US20080063038A1

    公开(公告)日:2008-03-13

    申请号:US11940345

    申请日:2007-11-15

    IPC分类号: H04L5/16

    摘要: A computer Input/Output system having a fabric, a control unit (CU) and a host computer including a channel, the channel having a channel port connected by a first link to a channel neighbor port of the fabric, and the control unit having a CU port connected by a second link to a CU neighbor port on the fabric. Then an error is detected in the link or protocol between the channel and the control unit, error data are reported to the channel by the channel, the channel port, the channel neighbor port, the control unit, the CU port and the CU neighbor port and sent to the channel. The error data are provided to the host computer for analysis.

    摘要翻译: 一种具有结构的计算机输入/输出系统,控制单元(CU)和包括通道的主机,所述通道具有通过第一链路连接到所述结构的通道相邻端口的通道端口,并且所述控制单元具有 CU端口通过第二个链路连接到Fabric上的CU邻居端口。 然后在通道和控制单元之间的链路或协议中检测到错误,通道,通道端口,通道邻居端口,控制单元,CU端口和CU相邻端口向通道报告错误数据 并发送到频道。 将错误数据提供给主计算机进行分析。

    Apparatus, system, and method for concurrent RAID array relocation
    7.
    发明申请
    Apparatus, system, and method for concurrent RAID array relocation 审中-公开
    用于并发RAID阵列重定位的装置,系统和方法

    公开(公告)号:US20070214313A1

    公开(公告)日:2007-09-13

    申请号:US11358486

    申请日:2006-02-21

    IPC分类号: G06F12/16 G06F13/00

    摘要: An apparatus, system, and method are disclosed for concurrently relocating a RAID array. The apparatus includes an identification module, a designation module, and an implementation module. The identification module identifies an availability of a physical device within a donor arrayed storage device to offload a source drive of a relocation enclosure. The designation module designates an available physical device as a target drive and thereby designate the target drive and the source drive as a linked pair;. The implementation module implements a mirroring relationship between the target drive and the source drive. The apparatus, system, and method provide a dynamic relocation of the raid array, minimizing system downtime and maximizing efficient utilization of system resources.

    摘要翻译: 公开了用于同时重新定位RAID阵列的装置,系统和方法。 该装置包括识别模块,指定模块和实现模块。 识别模块识别供体排列的存储设备内的物理设备的可用性,以卸载重定位机箱的源驱动器。 指定模块将可用的物理设备指定为目标驱动器,从而将目标驱动器和源驱动器指定为链接对。 实现模块实现目标驱动器和源驱动器之间的镜像关系。 设备,系统和方法提供了RAID阵列的动态重定位,最大限度地减少系统停机时间并最大限度地提高系统资源的有效利用率。

    Apparatus and method to control access to logical volumes using one or more copy services
    8.
    发明申请
    Apparatus and method to control access to logical volumes using one or more copy services 审中-公开
    使用一个或多个复制服务来控制对逻辑卷的访问的装置和方法

    公开(公告)号:US20050114465A1

    公开(公告)日:2005-05-26

    申请号:US10719487

    申请日:2003-11-20

    摘要: A method to control access to logical volumes disposed in one or more information storage and retrieval systems when using copy service relationships. The method provides a first information storage and retrieval system, a second information storage and retrieval system, and a plurality of host computers capable of communicating with the first information storage and retrieval system. The method forms (N) host computer group, and assigns each of the plurality of host computers to the a host computer group. The method forms (N) logical volume groups, and assigns one or more of the plurality of first logical volumes to a logical volume group. The method receives a request from a host computer assigned to the (i)th host computer group to establish a copy service relationship between a source logical volume and a target logical volume. The method determines if both the source and target logical volumes are assigned to the (i)th logical volume group. If both the source and target logical volumes are assigned to the (i)th logical volume group, then the method establishes the requested copy service relationship.

    摘要翻译: 一种在使用复制服务关系时控制对一个或多个信息存储和检索系统中设置的逻辑卷的访问的方法。 该方法提供第一信息存储和检索系统,第二信息存储和检索系统以及能够与第一信息存储和检索系统通信的多个主计算机。 该方法形成(N)主计算机组,并将多个主计算机中的每一个分配给主计算机组。 方法形成(N)个逻辑卷组,并且将多个第一逻辑卷中的一个或多个分配给逻辑卷组。 该方法从分配给第(i)主计算机组的主计算机接收请求,以在源逻辑卷和目标逻辑卷之间建立复制服务关系。 该方法确定源和目标逻辑卷是否分配给第(i)个逻辑卷组。 如果源和目标逻辑卷都分配给第(i)个逻辑卷组,则该方法将建立请求的复制服务关系。

    Apparatus and method to control access to logical volumes using parallel access volumes
    9.
    发明申请
    Apparatus and method to control access to logical volumes using parallel access volumes 有权
    使用并行访问卷来控制对逻辑卷的访问的装置和方法

    公开(公告)号:US20050114591A1

    公开(公告)日:2005-05-26

    申请号:US10719486

    申请日:2003-11-20

    摘要: A method to control access to logical volumes disposed in an information storage and retrieval system using parallel access volumes. The method provides an information storage and retrieval system comprising a plurality of logical volumes, and a plurality of host computers, where each host computers is capable of communicating with the information storage and retrieval system. The method creates a parallel access volume having an alias, and persistently associates that parallel access volume with an original base logical volume, where the original base logical volume may be assigned to one of (N) logical volume groups. If the original base logical volume is assigned to the (i)th logical volume group, the method permits each host computers assigned to the (i)th host computer group to access the original base logical volume, or the current base logical volume, associated with the parallel access volume.

    摘要翻译: 一种使用并行访问卷来控制访问存储在信息存储和检索系统中的逻辑卷的方法。 该方法提供包括多个逻辑卷的信息存储和检索系统以及多个主计算机,其中每个主计算机能够与信息存储和检索系统通信。 该方法创建具有别名的并行访问卷,并且将该并行访问卷与原始基本逻辑卷持久地关联,其中原始基本逻辑卷可以被分配给(N个)逻辑卷组之一。 如果原始基本逻辑卷被分配给第(i)个逻辑卷组,则该方法允许分配给第(i)个主机计算机组的每个主机计算机访问原始基本逻辑卷或当前基本逻辑卷相关联 具有并行访问量。

    Apparatus and method to control access to logical volumes
    10.
    发明申请
    Apparatus and method to control access to logical volumes 失效
    控制逻辑卷访问的设备和方法

    公开(公告)号:US20050114624A1

    公开(公告)日:2005-05-26

    申请号:US10719488

    申请日:2003-11-20

    IPC分类号: G06F3/06 G06F9/50 G06F12/00

    摘要: A method to control access to logical volumes. The method provides a plurality of host computers and an information storage and retrieval system comprising a plurality of logical volumes. The method forms (N) host computer groups, assigns one or more of the host computers to the (i)th host computer group, such that each host computer assigned to (i)th host computer group is not assigned to any other of the (N) host computer groups. The method forms (N) logical volume groups, assigns one or more logical volumes to the (i)th logical volume group, such that each of the logical volumes assigned to the (i)th logical volume group is not assigned to any other of the (N) logical volume groups. The method maintains a database associating the (i)th host computer group with the (i)th logical volume group, and permits a host computer assigned to the (i)th host computer group to access a logical volume assigned to the (i)th logical volume group.

    摘要翻译: 控制对逻辑卷的访问的方法。 该方法提供多个主计算机和包括多个逻辑卷的信息存储和检索系统。 该方法形成(N)主计算机组,将一个或多个主计算机分配给第(i)主计算机组,使得分配给(i)主计算机组的每个主计算机未分配给 (N)主机组。 该方法形成(N)个逻辑卷组,将一个或多个逻辑卷分配给第(i)个逻辑卷组,使得分配给第(i)个逻辑卷组的每个逻辑卷不分配给 (N)个逻辑卷组。 该方法维护将第(i)个主计算机组与第(i)个逻辑卷组相关联的数据库,并且允许分配给第(i)个主计算机组的主计算机访问分配给(i) 逻辑卷组。