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公开(公告)号：US20110082951A1
公开(公告)日：2011-04-07
申请号：US12575380
申请日：2009-10-07
IPC分类号： G06F3/00
CPC分类号： G06F11/201 , G06F3/0617
摘要： A method to adjust a multi-path device reservation by supplying a computing device and a storage controller interconnected with a communication link. The method further reserves a data storage device in communication with the storage controller, where that data storage device reservation is held by a first communication path group comprising a first plurality of communication paths configured in the communication link. If the method detects a failed communication path configured in the first communication path group, the method configures a second communication path group by removing the failed communication path from the first communication path group, wherein the second communication path group maintains the data storage device reservation.
摘要翻译： 一种通过提供与通信链路互连的计算设备和存储控制器来调整多路径设备预留的方法。 该方法还保留与存储控制器通信的数据存储设备，其中数据存储设备预留由包括在通信链路中配置的第一多个通信路径的第一通信路径组保持。 如果该方法检测到在第一通信路径组中配置的故障通信路径，则该方法通过从第一通信路径组去除故障通信路径来配置第二通信路径组，其中第二通信路径组保持数据存储设备预留。
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公开(公告)号：US20100037098A1
公开(公告)日：2010-02-11
申请号：US12189568
申请日：2008-08-11
申请人： Susan Kay CANDELARIA , Clint Alan HARDY , Roger Gregory HATHORN , Matthew Joseph KALOS , Beth Ann PETERSON
发明人： Susan Kay CANDELARIA , Clint Alan HARDY , Roger Gregory HATHORN , Matthew Joseph KALOS , Beth Ann PETERSON
CPC分类号： G06F11/0793 , G06F11/0724 , G06F11/0745 , G06F15/17337
摘要： Method, system and computer program product embodiments for, in an input/output (I/O) link handling complex instruction chains, a messaging scheme incorporating a method of error recovery between an initiator processor and a receiver processor, are provided. An operation initiation message is been sent from the initiator processor to the receiver processor for the receiver processor to begin work on an operation. If determined to be necessary, a terminate operation message is sent from the initiator processor to the receiver processor. The initiator processor withholds sending additional messages for the operation until a terminate operation response message is received. Once the terminate operation message is received, outstanding messages in process are flushed from the receiver processor. The receiver processor withholds sending additional messages to the initiator processor as the outstanding messages are completed. The terminate operation response message is sent from the receiver processor to the initiator processor.
摘要翻译： 在处理复杂指令链的输入/输出（I / O）链接中的方法，系统和计算机程序产品实施例提供了包括发起者处理器和接收器处理器之间的错误恢复方法的消息收发方案。 操作发起消息从发起者处理器发送到接收器处理器，以使接收器处理器开始工作。 如果确定需要，则终止操作消息从发起者处理器发送到接收器处理器。 发起者处理器保留发送用于该操作的附加消息，直到接收到终止操作响应消息。 一旦接收到终止操作消息，处理中的未完成消息从接收器处理器中刷新。 当未完成的消息完成时，接收器处理器保留向发起者处理器发送附加消息。 终止操作响应消息从接收器处理器发送到发起者处理器。
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公开(公告)号：US08417849B2
公开(公告)日：2013-04-09
申请号：US12575380
申请日：2009-10-07
IPC分类号： G06F3/00
CPC分类号： G06F11/201 , G06F3/0617
摘要： A method to adjust a multi-path device reservation by supplying a computing device and a storage controller interconnected with a communication link. The method further reserves a data storage device in communication with the storage controller, where that data storage device reservation is held by a first communication path group comprising a first plurality of communication paths configured in the communication link. If the method detects a failed communication path configured in the first communication path group, the method configures a second communication path group by removing the failed communication path from the first communication path group, wherein the second communication path group maintains the data storage device reservation.
摘要翻译： 一种通过提供与通信链路互连的计算设备和存储控制器来调整多路径设备预留的方法。 该方法还保留与存储控制器通信的数据存储设备，其中数据存储设备预留由包括在通信链路中配置的第一多个通信路径的第一通信路径组保持。 如果该方法检测到在第一通信路径组中配置的故障通信路径，则该方法通过从第一通信路径组去除故障通信路径来配置第二通信路径组，其中第二通信路径组保持数据存储设备预留。
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公开(公告)号：US07934122B2
公开(公告)日：2011-04-26
申请号：US12189568
申请日：2008-08-11
申请人： Susan Kay Candelaria , Clint Alan Hardy , Roger Gregory Hathorn , Matthew Joseph Kalos , Beth Ann Peterson
发明人： Susan Kay Candelaria , Clint Alan Hardy , Roger Gregory Hathorn , Matthew Joseph Kalos , Beth Ann Peterson
IPC分类号： G06F11/00
CPC分类号： G06F11/0793 , G06F11/0724 , G06F11/0745 , G06F15/17337
摘要： Method, system and computer program product embodiments for, in an input/output (I/O) link handling complex instruction chains, a messaging scheme incorporating a method of error recovery between an initiator processor and a receiver processor, are provided. An operation initiation message is been sent from the initiator processor to the receiver processor for the receiver processor to begin work on an operation. If determined to be necessary, a terminate operation message is sent from the initiator processor to the receiver processor. The initiator processor withholds sending additional messages for the operation until a terminate operation response message is received. Once the terminate operation message is received, outstanding messages in process are flushed from the receiver processor. The receiver processor withholds sending additional messages to the initiator processor as the outstanding messages are completed. The terminate operation response message is sent from the receiver processor to the initiator processor.
摘要翻译： 在处理复杂指令链的输入/输出（I / O）链接中的方法，系统和计算机程序产品实施例提供了包括发起者处理器和接收器处理器之间的错误恢复方法的消息收发方案。 操作发起消息从发起者处理器发送到接收器处理器，以使接收器处理器开始工作。 如果确定需要，则终止操作消息从发起者处理器发送到接收器处理器。 发起者处理器保留发送用于该操作的附加消息，直到接收到终止操作响应消息。 一旦接收到终止操作消息，处理中的未完成消息从接收器处理器中刷新。 当未完成的消息完成时，接收器处理器保留向发起者处理器发送附加消息。 终止操作响应消息从接收器处理器发送到发起者处理器。
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公开(公告)号：US07930438B2
公开(公告)日：2011-04-19
申请号：US12189573
申请日：2008-08-11
CPC分类号： G06F13/385 , G06F13/102
摘要： A method for facilitating input/output (I/O) communication for a processing operation is provided. An interrogate command is obtained by an I/O communications adapter. The interrogate command queries for status information of the processing operation to be provided in an interrogate response. A fixed number of resources and a time allocated to the interrogate command is throttled by pre-allocating the fixed number of resources needed for the interrogate command, and maintaining a timestamp for a interrogate message. The interrogate message is forwarded from the I/O communications adapter to a control unit. If the interrogate response is not received by the I/O communications adapter within a limited timeout period as measured by the timestamp, or if the interrogate message is received while the fixed number of pre-allocated resources are in use, the I/O communications adapter returns a busy response indicating the control unit is busy to prevent overrunning the control unit.
摘要翻译： 提供了一种用于促进用于处理操作的输入/输出（I / O）通信的方法。 询问命令由I / O通信适配器获得。 询问命令查询在询问响应中提供的处理操作的状态信息。 通过预分配询问命令所需的固定数量的资源以及维护询问消息的时间戳来限制分配给询问命令的固定数量的资源和时间。 询问消息从I / O通信适配器转发到控制单元。 如果I / O通信适配器在由时间戳测量的有限的超时时段内没有接收到询问响应，或者在固定数量的预分配资源正在使用时接收到询问消息，则I / O通信 适配器返回一个忙碌响应，指示控制单元正忙，以防止超控控制单元。
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公开(公告)号：US20100036982A1
公开(公告)日：2010-02-11
申请号：US12189573
申请日：2008-08-11
IPC分类号： G06F13/372 , G06F12/08
CPC分类号： G06F13/385 , G06F13/102
摘要： A method for facilitating input/output (I/O) communication for a processing operation is provided. An interrogate command is obtained by an I/O communications adapter. The interrogate command queries for status information of the processing operation to be provided in an interrogate response. A fixed number of resources and a time allocated to the interrogate command is throttled by pre-allocating the fixed number of resources needed for the interrogate command, and maintaining a timestamp for a interrogate message. The interrogate message is forwarded from the I/O communications adapter to a control unit. If the interrogate response is not received by the I/O communications adapter within a limited timeout period as measured by the timestamp, or if the interrogate message is received while the fixed number of pre-allocated resources are in use, the I/O communications adapter returns a busy response indicating the control unit is busy to prevent overrunning the control unit.
摘要翻译： 提供了一种用于促进用于处理操作的输入/输出（I / O）通信的方法。 询问命令由I / O通信适配器获得。 询问命令查询在询问响应中提供的处理操作的状态信息。 通过预分配询问命令所需的固定数量的资源以及维护询问消息的时间戳来限制分配给询问命令的固定数量的资源和时间。 询问消息从I / O通信适配器转发到控制单元。 如果I / O通信适配器在由时间戳测量的有限的超时时段内没有接收到询问响应，或者在固定数量的预分配资源正在使用时接收到询问消息，则I / O通信 适配器返回一个忙碌响应，指示控制单元正忙，以防止超控控制单元。
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