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    Apparatus and method to provide information from a first information storage and retrieval system to a second information storage and retrieval system
    1.
    发明授权
    Apparatus and method to provide information from a first information storage and retrieval system to a second information storage and retrieval system 失效
    将信息从第一信息存储和检索系统提供给第二信息存储和检索系统的装置和方法

    公开(公告)号：US07249205B2

    公开(公告)日：2007-07-24

    申请号：US10719484

    申请日：2003-11-20

    申请人： Alex Chen ,  James Chen ,  Olympia Gluck ,  Theodore T. Harris, Jr. ,  Minh-Ngoc Huynh ,  Gabriel G. Walder

    发明人： Alex Chen ,  James Chen ,  Olympia Gluck ,  Theodore T. Harris, Jr. ,  Minh-Ngoc Huynh ,  Gabriel G. Walder

    IPC分类号： G06F3/00 ,  G06F11/00 ,  G06F15/173

    CPC分类号： G06F3/0607 ,  G06F3/0605 ,  G06F3/0635 ,  G06F3/065

    摘要： A method to provide information from a first information storage and retrieval system to a second information storage and retrieval system. Applicants' method provides a first information storage and retrieval system, where that first information storage and retrieval system comprises (N) PPRC adapters and information, and provides a second information storage and retrieval system. The method generates and saves an Established Path Bitmap which recites each of the (N) PPRC adapters, and generates an Available Path Bitmap. If a PPRC adapter is in communication with the secondary information storage and retrieval system, then the method adds that adapter to the Available Path Bitmap. The Established Path Bitmap and the Available Path Bitmap are used for subsequent PPRC operations.

    摘要翻译： 一种从第一信息存储和检索系统向第二信息存储和检索系统提供信息的方法。 申请人的方法提供了第一信息存储和检索系统，其中第一信息存储和检索系统包括（N）个PPRC适配器和信息，并提供第二信息存储和检索系统。 该方法生成并保存了一个已建立的路径位图，该位图会记录（N）个PPRC适配器中的每一个，并生成可用的路径位图。 如果PPRC适配器与辅助信息存储和检索系统通信，则该方法将该适配器添加到可用路径位图。 建立路径位图和可用路径位图用于后续的PPRC操作。

    Apparatus and method to provide information from a first information storage and retrieval system to a second information storage and retrieval system
    2.
    发明申请
    Apparatus and method to provide information from a first information storage and retrieval system to a second information storage and retrieval system 失效
    将信息从第一信息存储和检索系统提供给第二信息存储和检索系统的装置和方法

    公开(公告)号：US20050114573A1

    公开(公告)日：2005-05-26

    申请号：US10719484

    申请日：2003-11-20

    申请人： Alex Chen ,  James Chen ,  Olympia Gluck ,  Theodore Harris ,  Minh-Ngoc Huynh ,  Gabriel Walder

    发明人： Alex Chen ,  James Chen ,  Olympia Gluck ,  Theodore Harris ,  Minh-Ngoc Huynh ,  Gabriel Walder

    IPC分类号： G06F3/06 ,  H04L12/24 ,  H04L29/06 ,  G06F13/12

    CPC分类号： G06F3/0607 ,  G06F3/0605 ,  G06F3/0635 ,  G06F3/065

    摘要： A method to provide information from a first information storage and retrieval system to a second information storage and retrieval system. Applicants' method provides a first information storage and retrieval system, where that first information storage and retrieval system comprises (N) PPRC adapters and information, and provides a second information storage and retrieval system. The method generates and saves an Established Path Bitmap which recites each of the (N) PPRC adapters, and generates an Available Path Bitmap. If a PPRC adapter is in communication with the secondary information storage and retrieval system, then the method adds that adapter to the Available Path Bitmap. The Established Path Bitmap and the Available Path Bitmap are used for subsequent PPRC operations.

    摘要翻译： 一种从第一信息存储和检索系统向第二信息存储和检索系统提供信息的方法。 申请人的方法提供了第一信息存储和检索系统，其中第一信息存储和检索系统包括（N）个PPRC适配器和信息，并提供第二信息存储和检索系统。 该方法生成并保存了一个已建立的路径位图，该位图会记录（N）个PPRC适配器中的每一个，并生成可用的路径位图。 如果PPRC适配器与辅助信息存储和检索系统通信，则该方法将该适配器添加到可用路径位图。 建立路径位图和可用路径位图用于后续的PPRC操作。

    Method, system, and program for copying tracks between a primary storage and secondary storage
    3.
    发明申请
    Method, system, and program for copying tracks between a primary storage and secondary storage 失效
    用于在主存储和辅助存储之间复制轨道的方法，系统和程序

    公开(公告)号：US20050154846A1

    公开(公告)日：2005-07-14

    申请号：US10754291

    申请日：2004-01-09

    申请人： James Chen ,  Minh-Ngoc Huynh ,  Chung Fung ,  Patricia Lu ,  Edwin Scott ,  Carol Mellgren ,  Richard Ripberger

    发明人： James Chen ,  Minh-Ngoc Huynh ,  Chung Fung ,  Patricia Lu ,  Edwin Scott ,  Carol Mellgren ,  Richard Ripberger

    IPC分类号： G06F12/16

    CPC分类号： G06F11/2074

    摘要： Provided are a method, system, and program for copying tracks between a primary controller and secondary controller. A track is received from the primary controller that is part of a copy job comprising a sequence of tracks to copy along with a sequence number of the received track and a context number identifying computational resources in the primary controller used to transmit the track, sequence number, and context number. The context number and sequence number transmitted with the track are used to determine if a track preceding the received track was written to storage. The secondary-controller writes the received track to storage if the track preceding the received track was written to storage.

    摘要翻译： 提供了用于在主控制器和次控制器之间复制轨道的方法，系统和程序。 从主控制器接收到作为复制作业的一部分的轨道，其包括要与所接收的轨道的序列号一起复制的轨道序列，以及识别用于发送轨道的主控制器中的计算资源的序列号，序列号 和上下文编号。 使用与轨道一起发送的上下文编号和序列号用于确定接收到的轨道之前的轨道是否被写入存储。 如果接收到的轨道之前的轨道被写入存储器，则二级控制器将接收到的轨道写入存储器。

    Configuration of fibre channel san path
    6.
    发明申请
    Configuration of fibre channel san path 失效
    光纤通道路径配置

    公开(公告)号：US20050114476A1

    公开(公告)日：2005-05-26

    申请号：US10719179

    申请日：2003-11-20

    申请人： James Chen ,  Patricia Lu ,  Chung Fung ,  Minh-Ngoc Huynh ,  Christopher Sansone ,  Dung Dang ,  Gail Spear ,  Richard Ripberger

    发明人： James Chen ,  Patricia Lu ,  Chung Fung ,  Minh-Ngoc Huynh ,  Christopher Sansone ,  Dung Dang ,  Gail Spear ,  Richard Ripberger

    IPC分类号： G06F15/177 ,  H04L29/08 ,  H04L29/12

    CPC分类号： H04L67/1097 ,  H04L29/12801 ,  H04L61/6004

    摘要： Methods, system and computer program product are provided to configure a path between nodes through a fabric in a fibre channel storage area network (SAN). A node name is provided for a target node on the SAN and a port name is provided for each port in the target node. A relationship is established in a data structure between each port name and a slot in which each port is physically located in the target node. Prior to configuring a path between a source node and a port in the target node, the ports which are physically connected and logged in to the fabric are identified by port address. The port names corresponding to the port addresses are then identified. The port names are used to generate interface_ids of the ports corresponding to the physical slots in which the ports are located. A data structure is created to maintain the relationship between interface_ids and port names. To establish a path connection between a port in the source node and a selected port in the target node, the node name of the target node and the interface_id of the selected port are input to the data structure and the port name of the selected port is output. The port name is then used to obtain the address of the selected port and an I/O session path opened between the source and target nodes.

    摘要翻译： 提供了方法，系统和计算机程序产品，以通过光纤通道存储区域网络（SAN）中的结构来配置节点之间的路径。 为SAN上的目标节点提供节点名称，并为目标节点中的每个端口提供端口名称。 在每个端口名称和每个端口物理上位于目标节点的时隙之间的数据结构中建立关系。 在目标节点中的源节点和端口之间配置路径之前，物理连接并登录到结构的端口由端口地址标识。 然后识别与端口地址对应的端口名称。 端口名称用于生成与端口所在物理槽相对应的端口的接口ID。 创建数据结构以维护interface_ids和端口名称之间的关系。 要在源节点中的端口和目标节点的选定端口之间建立路径连接，将目标节点的节点名称和所选端口的interface_id输入到数据结构，所选端口的端口名称为 输出。 然后使用端口名称来获取所选端口的地址以及在源节点和目标节点之间打开的I / O会话路径。

    Decreased response time for PPRC write operation
    7.
    发明申请
    Decreased response time for PPRC write operation 有权
    减少PPRC写入操作的响应时间

    公开(公告)号：US20050114358A1

    公开(公告)日：2005-05-26

    申请号：US10719229

    申请日：2003-11-20

    申请人： James Chen ,  Minh-Ngoc Huynh ,  Matthew Kalos ,  Chung Fung

    发明人： James Chen ,  Minh-Ngoc Huynh ,  Matthew Kalos ,  Chung Fung

    IPC分类号： G06F3/06 ,  H04L12/56 ,  G06F7/00

    CPC分类号： G06F3/065 ,  G06F3/0611 ,  G06F3/067 ,  G06F3/0689 ,  H04L47/10

    摘要： Methods, system and computer program product are provided to improve the efficiency of data transfers in a PPRC environment. Any or all of three features may be implemented, each of which reduces the number of round trips required for the exchange of handshaking, data and control information. A first feature includes disabling the “transfer ready” acknowledgment which normally occurs between a primary storage controller and a secondary storage controller. A second feature includes pre-allocating payload and data buffers in the secondary storage controller. A third feature includes packaging write control information with a write command in an extended command descriptor block (CDB). Such a step eliminated the need for a separate transmission of the write control information. The CDB is transmitted along with a data block from the primary storage controller to the secondary storage controller and placed in the respective, pre-allocated buffers. Data may also be pipelined to the secondary. By decreasing the response time for data transfers, the distance separating the primary and secondary storage controllers may be increased.

    摘要翻译： 提供了方法，系统和计算机程序产品，以提高PPRC环境中数据传输的效率。 可以实现三个特征中的任何一个或全部，每个特征减少交换握手，数据和控制信息所需的往返次数。 第一个功能包括禁用通常在主存储控制器和辅助存储控制器之间发生的“传送就绪”确认。 第二特征包括在副存储控制器中预分配有效载荷和数据缓冲器。 第三个特征包括在扩展命令描述符块（CDB）中用写入命令封装写入控制信息。 这样的步骤消除了对写入控制信息的单独发送的需要。 CDB与来自主存储控制器的数据块一起传送到辅助存储控制器并且被放置在相应的预先分配的缓冲器中。 数据也可以流水线到次级。 通过减少数据传输的响应时间，可以增加分离主存储控制器和辅助存储控制器的距离。

    Method, system, and program for data corruption detection and fault isolation
    8.
    发明申请
    Method, system, and program for data corruption detection and fault isolation 有权
    用于数据损坏检测和故障隔离的方法，系统和程序

    公开(公告)号：US20050188279A1

    公开(公告)日：2005-08-25

    申请号：US10752758

    申请日：2004-01-07

    申请人： Kevin Gibble ,  James Chen ,  Michael Benhase ,  Minh-Ngoc Huynh

    发明人： Kevin Gibble ,  James Chen ,  Michael Benhase ,  Minh-Ngoc Huynh

    IPC分类号： G06F11/00 ,  G06F11/10

    CPC分类号： G06F11/1004 ,  G06F11/1064

    摘要： Disclosed is a technique for fault isolation. A first error check is performed on a block of data in storage to determine whether the block of data was corrupted after the block of data was transferred from memory to the storage. When the first error check indicates that the block of data was corrupted, a second error check is performed using the block of data in the memory to determine whether the block of data was corrupted before being transferred from the memory. When the second error check indicates that the block of data was corrupted before being transferred from the memory, it is determined that the block of data was corrupted before being stored in the memory. When the second error check indicates that the block of data was corrupted after being transferred from the memory, it is determined that the block of data was corrupted by at least one of the memory or a formatter that performed the transfer. Additionally disclosed is a technique in which a block of data is transferred from a memory at a first control unit to a memory at a second control unit. At the first control unit, when a second error check at the second control unit indicates that the block of data was corrupted before being transferred from the memory, a third error check is performed on the block of data in memory at the first control unit. When the third error check indicates that the block of data was corrupted, it is determined that the block of data was corrupted at the first control unit. When the third error check indicates that the block of data was not corrupted, it is determined that the block of data was corrupted during transfer from the first control unit to the second control unit.

    摘要翻译： 公开了一种用于故障隔离的技术。 对存储器中的数据块执行第一个错误检查，以确定在数据块从存储器传输到存储器之后数据块是否已损坏。 当第一个错误检查指示数据块被破坏时，使用存储器中的数据块执行第二个错误检查，以确定在从存储器传送之前数据块是否已损坏。 当第二个错误检查指示在从存储器传送之前数据块被破坏时，确定数据块在存储在存储器中之前被破坏。 当第二个错误检查指示在从存储器传送之后数据块被破坏时，确定数据块被执行传送的存储器或格式器中的至少一个损坏。 另外公开了一种技术，其中数据块从第一控制单元的存储器传送到第二控制单元处的存储器。 在第一控制单元处，当第二控制单元的第二错误检查指示在从存储器传送之前数据块被破坏时，对第一控制单元的存储器中的数据块执行第三错误检查。 当第三个错误检查指示数据块被破坏时，确定数据块在第一个控制单元被破坏。 当第三错误检查指示数据块未被破坏时，确定在从第一控制单元传送到第二控制单元期间数据块被破坏。

    Selecting a path comprising ports on primary and secondary clusters to use to transmit data at a primary volume to a secondary volume
    10.
    发明申请
    Selecting a path comprising ports on primary and secondary clusters to use to transmit data at a primary volume to a secondary volume 有权
    选择一个路径，其中包含主要和次要群集上的端口，用于将主卷上的数据传输到辅助卷

    公开(公告)号：US20070168581A1

    公开(公告)日：2007-07-19

    申请号：US11283098

    申请日：2005-11-18

    申请人： Steven Klein ,  Michael Benhase ,  James Chen ,  Minh-Ngoc Huynh

    发明人： Steven Klein ,  Michael Benhase ,  James Chen ,  Minh-Ngoc Huynh

    IPC分类号： G06F13/00

    CPC分类号： H04L67/1097 ,  G06F11/201 ,  G06F11/2071 ,  G06F11/2089

    摘要： Provided are a method, system and program for selecting a path comprising ports on primary and secondary clusters to use to transmit data at a primary volume to a secondary volume. A request is received to copy data from a primary storage location to a secondary storage location. A determination is made from a plurality of primary clusters of an owner primary cluster for the primary storage location, wherein the primary clusters are configured to access the primary storage location. A determination is made as to whether there is at least one port on the owner primary cluster providing an available path to the secondary storage location. One port on the owner primary cluster is selected to use to copy the data to the secondary storage location in response to determining that there is at least one port on the owner primary cluster available to transmit to the secondary storage location.

    摘要翻译： 提供了一种用于选择包括主要和次要群集上的端口以用于将主卷上的数据传送到次要卷的路径的方法，系统和程序。 接收到将数据从主存储位置复制到辅助存储位置的请求。 从用于主存储位置的所有者主集群的多个主集群进行确定，其中主集群被配置为访问主存储位置。 确定所有者主集群上是否存在至少一个提供到辅助存储位置的可用路径的端口。 选择所有者主集群上的一个端口用于将数据复制到辅助存储位置，以响应确定所有者主集群上至少有一个可用于传输到辅助存储位置的端口。