PROCESSING OF DATA TO MONITOR INPUT/OUTPUT OPERATIONS
    61.
    发明申请
    PROCESSING OF DATA TO MONITOR INPUT/OUTPUT OPERATIONS 有权
    处理数据以监控输入/输出操作

    公开(公告)号:US20090210571A1

    公开(公告)日:2009-08-20

    申请号:US12031023

    申请日:2008-02-14

    IPC分类号: G06F3/00

    CPC分类号: G06F13/385

    摘要: A computer program product, an apparatus, and a method for processing communications between a control unit and a channel subsystem in an input/output processing system are provided. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes: sending a command from the channel subsystem to the control unit to initiate an input/output operation; setting a time period for completion of the operation; and responsive to the operation not completing within the time period, sending a message to determine whether the control unit has an exchange open for the command.

    摘要翻译: 提供了一种用于处理输入/输出处理系统中的控制单元和通道子系统之间的通信的计算机程序产品,装置和方法。 计算机程序产品包括可由处理电路读取的有形存储介质,并且存储由处理电路执行以执行方法的指令。 该方法包括:从通道子系统向控制单元发送命令以启动输入/输出操作; 设置完成操作的时间段; 并且响应于在该时间段内未完成的操作,发送消息以确定控制单元是否具有为该命令打开的交换机。

    SYSTEM AND PROGRAM PRODUCTS FOR FACILITATING ACCESS TO STATUS AND MEASUREMENT DATA ASSOCIATED WITH INPUT/OUTPUT PROCESSING
    62.
    发明申请
    SYSTEM AND PROGRAM PRODUCTS FOR FACILITATING ACCESS TO STATUS AND MEASUREMENT DATA ASSOCIATED WITH INPUT/OUTPUT PROCESSING 有权
    用于进入与输入/输出处理相关的状态和测量数据的系统和程序产品

    公开(公告)号:US20090144586A1

    公开(公告)日:2009-06-04

    申请号:US12364615

    申请日:2009-02-03

    IPC分类号: G06F11/07 G06F3/00

    CPC分类号: G06F13/126

    摘要: Input/output processing is facilitated by readily enabling access to information associated with input/output processing. This information includes status information and measurement data provided by a control unit executing input/output commands. The status and measurement data are provided in a status control block identified in a transport control word, which is further used to specify a location in memory that includes the input/output commands to be executed.

    摘要翻译: 通过容易地访问与输入/输出处理相关联的信息来促进输入/输出处理。 该信息包括由执行输入/输出命令的控制单元提供的状态信息和测量数据。 状态和测量数据被提供在传输控制字中标识的状态控制块中,其进一步用于指定包括要执行的输入/输出命令的存储器中的位置。

    Apparatus for communication between a device control unit having a
parallel bus and a serial channel having a serial link
    64.
    发明授权
    Apparatus for communication between a device control unit having a parallel bus and a serial channel having a serial link 失效
    具有并行总线的设备控制单元和具有串行链路的串行通道之间的通信的设备

    公开(公告)号:US5434980A

    公开(公告)日:1995-07-18

    申请号:US996370

    申请日:1992-12-23

    IPC分类号: G06F13/12 G06F13/42

    CPC分类号: G06F13/122

    摘要: A device control unit operating under the protocol of a parallel bus is connected by a serial link to a channel that is primarily adapted to operate under a different protocol with device control units connected by a serial link. An extender unit interconnects the parallel bus and the serial link and performs the specific operations of the parallel bus protocol. The channel and the extender unit send serial frames on the link for data transfer and associated operations. These frames are constructed according to a protocol that provides an intermediate step in translating between the protocol of the serial control units and the protocol of the parallel control units. The channel is operable in either mode (by microcode) and the new protocol permits the serial channel mode to be independent of the protocol of the parallel control unit and it permits the two modes to be closely similar in many features. New operations using the protocol reduce the delays that would otherwise be required in the communications between the channel and the extender unit. The serial link can be made longer when the delays are reduced.

    摘要翻译: 在并行总线的协议下工作的设备控制单元通过串行链路连接到主要适于在具有通过串行链路连接的设备控制单元的不同协议下操作的信道。 扩展单元将并行总线和串行链路互连,并执行并行总线协议的特定操作。 通道和扩展器单元在链路上发送串行帧以进行数据传输和相关操作。 这些帧是根据提供在串行控制单元的协议和并行控制单元的协议之间转换的中间步骤的协议构成的。 信道可以在任一模式(通过微代码)操作,并且新协议允许串行信道模式独立于并行控制单元的协议,并且允许两种模式在许多特征中是紧密相似的。 使用该协议的新操作减少了在通道和扩展器单元之间的通信中否则将需要的延迟。 当延迟减少时,可以使串行链路更长。

    Fibre channel input/output data routing including discarding of data transfer requests in response to error detection
    65.
    发明授权
    Fibre channel input/output data routing including discarding of data transfer requests in response to error detection 有权
    光纤通道输入/输出数据路由,包括丢弃响应错误检测的数据传输请求

    公开(公告)号:US09021155B2

    公开(公告)日:2015-04-28

    申请号:US13150583

    申请日:2011-06-01

    CPC分类号: G06F13/122 G06F13/426

    摘要: A computer program product is provided for performing input/output (I/O) processing. The computer program product is configured to perform: generating and storing in local channel memory at least one address control word (ACW) specifying one or more host memory locations for data transfer and including a data discard field; generating an address control structure specifying a local channel memory location of a corresponding ACW; receiving one or more data transfer requests from a network interface that each corresponding address control structure information; accessing an ACW and routing the data transfer request to a host memory location specified in the ACW; and responsive to encountering an error during at least one of the accessing and the routing, discarding the one or more data transfer requests and setting the data discard field to a value configured to instruct a channel to discard any subsequent data transfer requests associated with the ACW.

    摘要翻译: 提供用于执行输入/输出(I / O)处理的计算机程序产品。 计算机程序产品被配置为执行:在本地信道存储器中生成和存储至少一个地址控制字(ACW),其指定用于数据传输的一个或多个主机存储器位置并且包括数据丢弃字段; 产生指定相应ACW的本地信道存储器位置的地址控制结构; 从网络接口接收每个对应的地址控制结构信息的一个或多个数据传输请求; 访问ACW并将数据传输请求路由到ACW中指定的主机存储器位置; 并且响应于在访问和路由中的至少一个期间遇到错误,丢弃一个或多个数据传输请求并将数据丢弃字段设置为被配置为指示信道丢弃与ACW相关联的任何后续数据传送请求的值 。

    Facilitating transport mode input/output operations between a channel subsystem and input/output devices
    67.
    发明授权
    Facilitating transport mode input/output operations between a channel subsystem and input/output devices 有权
    促进通道子系统和输入/输出设备之间的传输模式输入/输出操作

    公开(公告)号:US08549185B2

    公开(公告)日:2013-10-01

    申请号:US13173725

    申请日:2011-06-30

    CPC分类号: G06F13/42

    摘要: A computer program product is provided for performing an input/output (I/O) processing operation at a host computer system. The computer program product is configured to perform: obtaining a transport command word (TCW) at a channel subsystem for an I/O operation, the TCW including an address of a transport command control block (TCCB) having a transport command area (TCA) configured to hold a first plurality of device command words (DCW) and control data associated with respective DCWs, the first plurality of DCWs including a transfer TCA extension (TTE) DCW that specifies a TCA extension, the TCA extension configured to hold one or more DCWs and control data associated with respective DCWs; gathering the TCCB from one or more locations specified in the TCCB address and transferring the TCCB to the control unit; gathering the TCA extension specified by the TTE DCW; and transferring the TCA extension to the control unit.

    摘要翻译: 提供了一种计算机程序产品,用于在主计算机系统上执行输入/输出(I / O)处理操作。 所述计算机程序产品被配置为执行:在用于I / O操作的信道子系统处获得传输命令字(TCW),所述TCW包括具有传输命令区域(TCA)的传输命令控制块(TCCB)的地址, 被配置为保持第一多个设备命令字(DCW)和与相应DCW相关联的控制数据,所述第一多个DCW包括指定TCA扩展的传输TCA扩展(TTE)DCW,所述TCA扩展被配置为保存一个或多个 DCW和与相应DCW相关联的控制数据; 从TCCB地址中指定的一个或多个位置收集TCCB,并将TCCB传送到控制单元; 收集TTE DCW指定的TCA扩展; 并将TCA扩展传输到控制单元。

    FIBRE CHANNEL INPUT/OUTPUT DATA ROUTING SYSTEM AND METHOD
    70.
    发明申请
    FIBRE CHANNEL INPUT/OUTPUT DATA ROUTING SYSTEM AND METHOD 有权
    光纤通道输入/输出数据路由系统和方法

    公开(公告)号:US20120311390A1

    公开(公告)日:2012-12-06

    申请号:US13150549

    申请日:2011-06-01

    IPC分类号: G06F11/07

    CPC分类号: G06F13/387

    摘要: A computer program product for performing input/output (I/O) processing is provided. The computer program product is configured to perform: obtaining information relating to an I/O operation at a channel subsystem; generating and storing in local channel memory at least one address control word (ACW) specifying one or more host memory locations for data transfer and including a data check word generation field and/or a data check word save field; responsive to receiving an input data transfer request including at least one data check word, storing the at least one data check word in the data check word save field and performing a check of the data to determine whether the data has been corrupted; and responsive to receiving an output data transfer, generating at least one data check word based on the data check word generation field and appending the at least one data check word to the data.

    摘要翻译: 提供了用于执行输入/输出(I / O)处理的计算机程序产品。 计算机程序产品被配置为执行:获得与通道子系统上的I / O操作有关的信息; 在本地信道存储器中生成和存储指定用于数据传输的一个或多个主机存储器位置的至少一个地址控制字(ACW),并且包括数据检查词生成字段和/或数据检查字保存字段; 响应于接收到包括至少一个数据检查字的输入数据传输请求,将所述至少一个数据检查词存储在数据检查字保存字段中,并且执行数据检查以确定数据是否已被破坏; 并且响应于接收到输出数据传输,基于所述数据检查词生成字段生成至少一个数据检查字,并将所述至少一个数据检查词附加到所述数据。