公开(公告)号：US20090210585A1

公开(公告)日：2009-08-20

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： G06F13/24

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。

公开(公告)号：US09015362B2

公开(公告)日：2015-04-21

申请号：US12838029

申请日：2010-07-16

申请人： Scott M. Carlson ,  Marisa Freidhof ,  Geoffrey E. Miller ,  Dale F. Riedy ,  Harry M. Yudenfriend

发明人： Scott M. Carlson ,  Marisa Freidhof ,  Geoffrey E. Miller ,  Dale F. Riedy ,  Harry M. Yudenfriend

IPC分类号： G06F3/00 ,  G06F11/00 ,  H04L1/14 ,  H04L12/24 ,  H04L12/26 ,  H04L12/801

CPC分类号： H04L41/0654 ,  H04L43/0864 ,  H04L43/16 ,  H04L47/12 ,  H04L47/29

摘要： A computer program product is provided for performing a method including: receiving transmission data over a selected time interval for each of a plurality of communication paths; calculating an average round-trip transmission time for each of the plurality of communication paths over the time interval; comparing an average round-trip transmission time for a communication path having the highest average round-trip transmission time to a threshold value and to a multiple of an average round-trip transmission time for a communication path having the lowest average round-trip transmission time; and determining, based on a result of comparing the highest round-trip transmission time to the threshold value and to a multiple of the lowest round-trip transmission time, whether the time period indicates a delay in communication between the I/O subsystem and the control unit requiring at least one of a monitoring action and a recovery action.

摘要翻译： 提供了一种计算机程序产品，用于执行一种方法，包括：针对多个通信路径中的每一个，在选定的时间间隔内接收传输数据; 在所述时间间隔内计算所述多个通信路径中的每一个的平均往返传输时间; 将具有最高平均往返发送时间的通信路径的平均往返发送时间与阈值进行比较，并将平均往返发送时间的平均往返发送时间的倍数作为具有最低平均往返发送时间的通信路径 ; 以及基于将所述最高往返传输时间与所述阈值进行比较的结果和所述最低往返传输时间的倍数来确定所述时间段是否表示所述I / O子系统与所述第二往返传送时间之间的通信延迟 控制单元需要至少一个监视动作和恢复动作。

公开(公告)号：US08214562B2

公开(公告)日：2012-07-03

申请号：US12031042

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 ,  Matthew R. Craig ,  Bret W. Holley

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 ,  Matthew R. Craig ,  Bret W. Holley

IPC分类号： G06F3/00 ,  G06F5/00 ,  G06F13/12 ,  G06F1/00 ,  H04L1/00 ,  H04L12/50 ,  H04J3/17

CPC分类号： G06F13/122

摘要： A computer program product, an apparatus, and a method for processing communications between a target and an initiator 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 message from the initiator to the target, the message requesting suspension of input/output operations between the initiator and the target for a period of time, the period of time being defined by the message; responsive to the message, suspending input/output operation messages for the period of time; performing a system change comprising at least one of: at least one update, a computer program installation, a recovery, and a change in operating parameters; and initiating new input/output operations after at least one of: expiration of the period of time and initiation of new input/output operations by the initiator.

摘要翻译： 提供了一种用于处理目标和发起者之间的通信的计算机程序产品，装置和方法，所述输入/输出处理系统。 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。 所述方法包括：从所述发起者发送消息到所述目标，所述消息请求暂停所述发起者与所述目标之间的输入/输出操作一段时间，所述时间段由所述消息定义; 响应该消息，暂停输入/输出操作消息一段时间; 执行系统改变，其包括以下至少一个：至少一个更新，计算机程序安装，恢复和操作参数的改变; 并且在发起者的时间段的到期和新的输入/输出操作的至少一个之后启动新的输入/输出操作。

公开(公告)号：US08166206B2

公开(公告)日：2012-04-24

申请号：US12030993

申请日：2008-02-14

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

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

IPC分类号： G06F3/00

CPC分类号： G06F13/122

摘要： The state of an input/output (I/O) operation is determined in an I/O processing system. A command is received from an I/O operating system at a channel subsystem for initiating the I/O operation, a time period is for completion of the I/O operation, and the command for initiating the I/O operation is sent from the channel subsystem to the control unit. Responsive to the time period nearing elapsing without the I/O operation completing, a cancel instruction is received from the I/O operating system at the channel subsystem. Responsive to a determination by the I/O operating system to interrogate the control unit, an instruction to interrogate the control unit is received with the cancel instruction from the I/O operating system.

摘要翻译： 在I / O处理系统中确定输入/输出（I / O）操作的状态。 从用于启动I / O操作的通道子系统的I / O操作系统接收到命令，完成I / O操作的时间段，并且用于启动I / O操作的命令从 通道子系统到控制单元。 响应于没有I / O操作完成的接近经过的时间段，从信道子系统的I / O操作系统接收到取消指令。 响应于I / O操作系统对询问控制单元的确定，接收到来自I / O操作系统的取消指令的询问控制单元的指令。

公开(公告)号：US07904605B2

公开(公告)日：2011-03-08

申请号：US12030975

申请日：2008-02-14

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

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

IPC分类号： G06F3/00

CPC分类号： G06F11/0745 ,  G06F11/0757 ,  G06F11/0793 ,  G06F11/30

摘要： A computer program product, apparatus, and method are provided for determining a state of an input/output (I/O) operation in an I/O processing system. A request from a channel subsystem is received at a control unit for performing the I/O operation. After a predetermined amount of time passes without the I/O operation completing, an interrogation request is received from the channel subsystem at the control unit for determining the state of the I/O operation. A response is sent from the control unit to the channel subsystem indicating the state of the I/O operation in response to the interrogation request. The response also includes information regarding a state of an I/O device executing the I/O operation and information indicating a state of the control unit controlling the I/O device executing the I/O operation.

摘要翻译： 提供了用于确定I / O处理系统中的输入/输出（I / O）操作的状态的计算机程序产品，装置和方法。 来自通道子系统的请求在用于执行I / O操作的控制单元处被接收。 在完成I / O操作的预定量的时间之后，从控制单元的通道子系统接收询问请求，以确定I / O操作的状态。 响应于询问请求，响应从控制单元发送到信道子系统，指示I / O操作的状态。 响应还包括关于执行I / O操作的I / O设备的状态的信息和指示控制执行I / O操作的I / O设备的控制单元的状态的信息。

公开(公告)号：US20090210561A1

公开(公告)日：2009-08-20

申请号：US12031042

申请日：2008-02-14

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

IPC分类号： G06F3/00

CPC分类号： G06F13/122

摘要： A computer program product, an apparatus, and a method for processing communications between a target and an initiator 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 message from the initiator to the target, the message requesting suspension of input/output operations between the initiator and the target for a period of time, the period of time being defined by the message; responsive to the message, suspending input/output operation messages for the period of time; performing a system change comprising at least one of: at least one update, a computer program installation, a recovery, and a change in operating parameters; and initiating new input/output operations after at least one of: expiration of the period of time and initiation of new input/output operations by the initiator.

摘要翻译： 提供了一种用于处理目标和发起者之间的通信的计算机程序产品，装置和方法，所述输入/输出处理系统。 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。 所述方法包括：从所述发起者发送消息到所述目标，所述消息请求暂停所述发起者与所述目标之间的输入/输出操作一段时间，所述时间段由所述消息定义; 响应该消息，暂停输入/输出操作消息一段时间; 执行系统改变，其包括以下至少一个：至少一个更新，计算机程序安装，恢复和操作参数的改变; 并且在发起者的时间段的到期和新的输入/输出操作的至少一个之后启动新的输入/输出操作。

公开(公告)号：US08458361B2

公开(公告)日：2013-06-04

申请号：US12748539

申请日：2010-03-29

申请人： Scott M. Carlson ,  Donald Crabtree ,  Dennis J. Dahlen ,  Beth A. Glendening ,  Michel H. T. Hack ,  Denise M. Sevigny ,  Ronald M. Smith, Sr. ,  David E. Whitney

发明人： Scott M. Carlson ,  Donald Crabtree ,  Dennis J. Dahlen ,  Beth A. Glendening ,  Michel H. T. Hack ,  Denise M. Sevigny ,  Ronald M. Smith, Sr. ,  David E. Whitney

IPC分类号： G06F15/16

CPC分类号： G06F3/0659 ,  G06F3/0677 ,  G06F15/167 ,  H04L29/06 ,  H04L69/28

摘要： A protocol for communicating with the timing facility used in a data processing network to provide synchronization is provided via the execution of a machine instruction that accepts a plurality of commands. The interaction is provided through the use of message request blocks and their associated message response blocks. In this way timing parameters may be determined, modified and communicated. This makes it much easier for multiple servers or nodes in a data processing network to exist as a coordinated timing network and to thus more cooperatively operate on the larger yet identical data files.

公开(公告)号：US07944812B2

公开(公告)日：2011-05-17

申请号：US12254222

申请日：2008-10-20

申请人： Scott M. Carlson ,  Daniel G. Eisenhauer ,  Roger G. Hathorn ,  Sandy K. Kao ,  Jeffrey W. Palm ,  Renato J. Recio

发明人： Scott M. Carlson ,  Daniel G. Eisenhauer ,  Roger G. Hathorn ,  Sandy K. Kao ,  Jeffrey W. Palm ,  Renato J. Recio

IPC分类号： H04J1/16

CPC分类号： H04L41/06 ,  H04L12/40195 ,  H04L43/0811

摘要： A method for detecting a switch failure and managing switch failover in a Fiber Channel over Ethernet network. The plurality of Fiber Channel over Ethernet switches are connected to an intermediary Ethernet switch and to each other via an Ethernet connection. The intermediary Ethernet switch is different from the plurality of Fiber Channel over Ethernet switches. A plurality of end ports are also connected to the intermediary Ethernet switch. A failure is detected in a first switch in the plurality of Fiber Channel over Ethernet switches. The first switch is associated with a first end port in the plurality of end ports. A failure notification is sent to the first end port using the intermediary Ethernet switch. The failure notification might specify a second switch destination and an identification of the first switch. A fabric login is exchanged between the first end port and the second switch.

摘要翻译： 一种用于检测交换机故障并管理以太网光纤通道中的交换机故障切换的方法。 多个以太网光纤通道交换机通过以太网连接连接到中间以太网交换机并彼此连接。 中间以太网交换机与多个以太网光纤通道交换机不同。 多个端口也连接到中间以太网交换机。 在多个以太网交换机中的光纤通道中的第一交换机中检测到故障。 第一开关与多个端口中的第一端口相关联。 使用中间以太网交换机将故障通知发送到第一端口。 故障通知可能指定第二个交换机目的地和第一个交换机的标识。 在第一端口和第二交换机之间交换结构登录。

公开(公告)号：US07917813B2

公开(公告)日：2011-03-29

申请号：US12030985

申请日：2008-02-14

申请人： Scott M. Carlson ,  Daniel F. Casper ,  John R. Flanagan ,  Charles W. Gainey ,  Roger G. Hathorn ,  Catherine C. Huang ,  Matthew J. Kalos ,  Ugochukwu Charles Njoku ,  Louis C. Ricci ,  Gustav E. Sittmann

发明人： Scott M. Carlson ,  Daniel F. Casper ,  John R. Flanagan ,  Charles W. Gainey ,  Roger G. Hathorn ,  Catherine C. Huang ,  Matthew J. Kalos ,  Ugochukwu Charles Njoku ,  Louis C. Ricci ,  Gustav E. Sittmann

IPC分类号： G06F11/00

CPC分类号： G06F11/0772 ,  G06F11/0745

摘要： A computer program product, apparatus, and method for providing exception condition feedback at a control unit to a channel subsystem in an I/O 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 receiving a command message at the control unit from the channel subsystem, and detecting an exception condition in response to unsuccessful execution of at least one command in the command message. The method further includes identifying a termination reason code associated with the exception condition, writing the termination reason code to a response message, and sending the response message to the channel subsystem.

摘要翻译： 提供了一种用于在控制单元向I / O处理系统中的信道子系统提供异常状况反馈的计算机程序产品，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。 所述方法包括：在所述控制单元处从所述信道子系统接收命令消息，以及响应于所述命令消息中的至少一个命令的不成功的执行来检测异常条件。 该方法还包括识别与异常条件相关联的终止原因代码，将终止原因代码写入响应消息，以及将响应消息发送到信道子系统。

公开(公告)号：US07873862B2

公开(公告)日：2011-01-18

申请号：US12255348

申请日：2008-10-21

申请人： Scott M. Carlson ,  Stephen P. Cherniak ,  Donald Crabtree ,  Dennis J. Dahlen ,  Noshir R. Dhondy ,  Michel H. T. Hack ,  Denise M. Sevigny ,  Judith A. Wierbowski

发明人： Scott M. Carlson ,  Stephen P. Cherniak ,  Donald Crabtree ,  Dennis J. Dahlen ,  Noshir R. Dhondy ,  Michel H. T. Hack ,  Denise M. Sevigny ,  Judith A. Wierbowski

IPC分类号： G06F11/00

CPC分类号： H04J3/0641 ,  H04L12/6418

摘要： A primary time server of a Coordinated Timing Network remains as current time server, even if time code information of the primary time server is unavailable. The primary time server receives the necessary or desired timing information from a secondary time server and uses that information to maintain time synchronization within the Coordinated Timing Network.

摘要翻译： 协调定时网络的主要时间服务器仍然是当前时间服务器，即使主时间服务器的时间码信息不可用。 主要时间服务器从辅助时间服务器接收必要或期望的定时信息，并使用该信息来维持协调定时网络内的时间同步。