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    Reserved device access contention reduction
    51.
    发明授权
    Reserved device access contention reduction 有权
    保留设备访问争用减少

    公开(公告)号：US07908403B2

    公开(公告)日：2011-03-15

    申请号：US12030961

    申请日：2008-02-14

    申请人： Mark P Bendyk ,  Daniel F Casper ,  John R. Flanagan ,  Clint A. Hardy ,  Roger G. Hathorn ,  Catherine C. Huang ,  Matthew L. Kalos ,  Louis W. Ricci ,  Gustav E. Sittmann ,  Harry M. Yudenfriend

    发明人： Mark P Bendyk ,  Daniel F Casper ,  John R. Flanagan ,  Clint A. Hardy ,  Roger G. Hathorn ,  Catherine C. Huang ,  Matthew L. Kalos ,  Louis W. Ricci ,  Gustav E. Sittmann ,  Harry M. Yudenfriend

    IPC分类号： G06F3/00

    CPC分类号： G06F13/122 ,  G06F9/50

    摘要： A computer program product, an apparatus, and a method for reducing reserved device access contention at a control unit in communication with a plurality of operating systems via one or more channels 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 that includes receiving a command message at the control unit from a first operating system, including an I/O operation command for a device. A device busy indicator is received, indicating that a second operating system has reserved the device. The command message is queued on a device busy queue in response to the device busy indicator. The control unit monitors for a device end indicator. The device busy queue is serviced to perform the I/O operation command in response to the device end indicator.

    摘要翻译： 提供了一种用于在经由一个或多个通道与多个操作系统通信的控制单元处减少预留设备访问争用的计算机程序产品，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，并且存储用于由处理电路执行以执行包括从第一操作系统在控制单元处接收命令消息的方法的指令，该第一操作系统包括I / O操作命令 用于设备。 接收到设备忙指示符，指示第二操作系统已经预留了设备。 响应于设备忙指示灯，命令消息在设备忙碌队列中排队。 控制单元监视设备端指示器。 服务设备忙碌队列以响应设备结束指示符执行​​I / O操作命令。

    Processing of data to suspend operations in an input/output processing log-out system
    52.
    发明授权
    Processing of data to suspend operations in an input/output processing log-out system 有权
    处理数据以暂停在输入/输出处理注销系统中的操作

    公开(公告)号：US07840718B2

    公开(公告)日：2010-11-23

    申请号：US12031021

    申请日：2008-02-14

    申请人： Louis W. Ricci ,  Mark P. Bendyk ,  Scott M. Carlson ,  Daniel F. Casper ,  John R. Flanagan ,  Roger G. Hathorn ,  Catherine C. Huang ,  Matthew J. Kalos ,  Gustav E. Sittmann ,  Harry M. Yudenfriend

    发明人： Louis W. Ricci ,  Mark P. Bendyk ,  Scott M. Carlson ,  Daniel F. Casper ,  John R. Flanagan ,  Roger G. Hathorn ,  Catherine C. Huang ,  Matthew J. Kalos ,  Gustav E. Sittmann ,  Harry M. Yudenfriend

    IPC分类号： G06F3/00

    CPC分类号： G06F13/124

    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 Process Log-out (PRLO) message from the control unit to the channel subsystem, the message requesting suspension of input/output operations between the control unit and the channel subsystem for a period of time, the period of time being defined by the PRLO message; responsive to the PRLO message, suspending by the channel all input/output operation messages for the period of time, wherein suspending comprises stopping input/output operation messages during the period of time; and responsive to an expiration of the period of time, sending a Process Log-in (PRLI) message from the channel subsystem to the control unit to re-initiate an operating environment between the channel subsystem and the control unit.

    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：从控制单元向通道子系统发送进程注销（PRLO）消息，该消息请求在控制单元和信道子系统之间暂停输入/输出操作一段时间，该时间段 由PRLO消息定义; 响应于所述PRLO消息，暂停所述输入/输出操作消息的所述时间段，其中暂停包括在所述时段期间停止输入/输出操作消息; 并且响应于所述时间段的期满，将来自所述通道子系统的过程登录（PRLI）消息发送到所述控制单元以重新启动所述通道子系统和所述控制单元之间的操作环境。

    RESERVED DEVICE ACCESS CONTENTION REDUCTION
    55.
    发明申请
    RESERVED DEVICE ACCESS CONTENTION REDUCTION 有权
    保留设备访问减少

    公开(公告)号：US20090210583A1

    公开(公告)日：2009-08-20

    申请号：US12030961

    申请日：2008-02-14

    申请人： Mark P. Bendyk ,  Daniel F. Casper ,  John R. Flanagan ,  Clint A. Hardy ,  Roger G. Hathorn ,  Catherine C. Huang ,  Matthew J. Kalos ,  Louis W. Ricci ,  Gustav E. Sittmann ,  Harry M. Yudenfriend

    发明人： Mark P. Bendyk ,  Daniel F. Casper ,  John R. Flanagan ,  Clint A. Hardy ,  Roger G. Hathorn ,  Catherine C. Huang ,  Matthew J. Kalos ,  Louis W. Ricci ,  Gustav E. Sittmann ,  Harry M. Yudenfriend

    IPC分类号： G06F3/00

    CPC分类号： G06F13/122 ,  G06F9/50

    摘要： A computer program product, an apparatus, and a method for reducing reserved device access contention at a control unit in communication with a plurality of operating systems via one or more channels 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 that includes receiving a command message at the control unit from a first operating system, including an I/O operation command for a device. A device busy indicator is received, indicating that a second operating system has reserved the device. The command message is queued on a device busy queue in response to the device busy indicator. The control unit monitors for a device end indicator. The device busy queue is serviced to perform the I/O operation command in response to the device end indicator.

    摘要翻译： 提供了一种用于在经由一个或多个通道与多个操作系统通信的控制单元处减少预留设备访问争用的计算机程序产品，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，并且存储用于由处理电路执行以执行包括从第一操作系统在控制单元处接收命令消息的方法的指令，该第一操作系统包括I / O操作命令 用于设备。 接收到设备忙指示符，指示第二操作系统已经预留了设备。 响应于设备忙指示灯，命令消息在设备忙碌队列中排队。 控制单元监视设备端指示器。 服务设备忙碌队列以响应设备结束指示符执行​​I / O操作命令。

    EXTENDED MEASUREMENT WORD DETERMINATION AT A CHANNEL SUBSYSTEM OF AN I/O PROCESSING SYSTEM
    57.
    发明申请
    EXTENDED MEASUREMENT WORD DETERMINATION AT A CHANNEL SUBSYSTEM OF AN I/O PROCESSING SYSTEM 有权
    在I / O处理系统的通道子系统中扩展测量字测量

    公开(公告)号：US20090210570A1

    公开(公告)日：2009-08-20

    申请号：US12030920

    申请日：2008-02-14

    申请人： Mark P. Bendyk ,  Daniel F. Casper ,  John R. Flanagan ,  Roger G. Hathorn ,  Catherine C. Huang ,  Matthew J. Kalos ,  Louis W. Ricci ,  Gustav E. Sittmann ,  Harry M. Yudenfriend

    发明人： Mark P. Bendyk ,  Daniel F. Casper ,  John R. Flanagan ,  Roger G. Hathorn ,  Catherine C. Huang ,  Matthew J. Kalos ,  Louis W. Ricci ,  Gustav E. Sittmann ,  Harry M. Yudenfriend

    IPC分类号： G06F3/00

    CPC分类号： G06F13/124

    摘要： An article of manufacture, an apparatus, and a method for determining an extended measurement word at a channel subsystem of an I/O processing system using data from a control unit are provided. The article of manufacture includes at least one computer usable medium having computer readable program code logic. The computer readable program code logic performs a method including sending a command message to the control unit, and receiving a transport response information unit message at the channel subsystem in response to sending the command message to the control unit. The computer readable program code logic additionally extracts a plurality of time values from the transport response information unit message as calculated by the control unit, calculates an extended measurement word as a function of the time values, and writes the extended measurement word to computer readable memory in the I/O processing system.

    摘要翻译： 提供了使用来自控制单元的数据来确定I / O处理系统的通道子系统处的扩展测量字的制造品，装置和方法。 该制品包括具有计算机可读程序代码逻辑的至少一个计算机可用介质。 计算机可读程序代码逻辑执行包括向控制单元发送命令消息并响应于向控制单元发送命令消息在通道子系统处接收传输响应信息单元消息的方法。 计算机可读程序代码逻辑还从控制单元计算的传输响应信息单元消息中提取多个时间值，根据时间值计算扩展测量字，并将扩展测量字写入计算机可读存储器 在I / O处理系统中。

    Apparatus and method to generate and save run time data
    59.
    发明授权
    Apparatus and method to generate and save run time data 失效
    用于生成和保存运行时间数据的装置和方法

    公开(公告)号：US07475291B2

    公开(公告)日：2009-01-06

    申请号：US11097532

    申请日：2005-03-31

    申请人： Charles Scott Cardinell ,  Roger G. Hathorn ,  Man Wah Ma ,  Kimberly A. Thomas

    发明人： Charles Scott Cardinell ,  Roger G. Hathorn ,  Man Wah Ma ,  Kimberly A. Thomas

    IPC分类号： G06F11/00

    CPC分类号： G06F11/348 ,  G06F11/3476 ,  G06F11/3636

    摘要： A method is disclosed to generate and save run time data. The method supplies an embedded device comprising a processor which includes a processor cache, memory, a hardware trace facility comprising a plurality of data buffers, where the embedded device is capable of communicating with one or more host adapter ports. The method generates a trace entry, stores that trace data entry in the processor cache, and then writes the trace data entry to the plurality of data buffers.

    摘要翻译： 公开了一种生成和保存运行时间数据的方法。 该方法提供包括处理器的嵌入式设备，处理器包括处理器高速缓存，存储器，包括多个数据缓冲器的硬件跟踪设备，其中嵌入式设备能够与一个或多个主机适配器端口通信。 该方法生成跟踪条目，将跟踪数据条目存储在处理器高速缓存中，然后将跟踪数据条目写入多个数据缓冲区。

    Increased destaging efficiency by smoothing destaging between current and desired number of destage tasks
    60.
    发明授权
    Increased destaging efficiency by smoothing destaging between current and desired number of destage tasks 有权
    通过平滑目前和所需数量的目的任务之间的破坏来提高降落效率

    公开(公告)号：US09442847B2

    公开(公告)日：2016-09-13

    申请号：US13363092

    申请日：2012-01-31

    申请人： Michael T. Benhase ,  Lokesh M. Gupta ,  Roger G. Hathorn ,  Sonny E. Williams

    发明人： Michael T. Benhase ,  Lokesh M. Gupta ,  Roger G. Hathorn ,  Sonny E. Williams

    IPC分类号： G06F9/46 ,  G06F9/455 ,  G06F12/08 ,  G06F12/12

    CPC分类号： G06F12/0804 ,  G06F12/0868 ,  G06F12/121 ,  G06F2212/1024 ,  G06F2212/281 ,  G06F2212/312 ,  G06F2212/462

    摘要： Techniques for increased destaging efficiency by smoothing destaging tasks to reduce long input/output (I/O) read operations are described. A system may comprise a processor device operable in the computing storage environment. The processor device calculates a current number of the destaging tasks and calculates a desired number of the destaging tasks. The processor device smoothes the destaging of the of the destaging tasks between the desired number of the destaging tasks and the current number of the destaging tasks by accelerating the calculating of the current number of the destaging tasks and the desired number of the destaging tasks, according to either a time interval or a variable recomputed destaging task interval, for reaching the desired number of the destaging tasks by decrementing the current number of destaging tasks or incrementing the current number of destaging tasks.

    摘要翻译： 描述了通过平滑降级任务以减少长输入/输出（I / O）读取操作来提高降级效率的技术。 系统可以包括可在计算存储环境中操作的处理器设备。 处理器设备计算当前的目标数量并计算所需的数目的降级任务。 处理器设备通过加速计算当前数量的降级任务和期望数量的降级任务来平滑所需数目的目标任务数目与当前数量的目标任务之间的目标任务的分级，根据 到时间间隔或变量重新计算的降级任务间隔，以通过减少当前数量的降级任务或增加当前数量的降级任务来达到期望数量的降级任务。