公开(公告)号：US07730343B2

公开(公告)日：2010-06-01

申请号：US11734196

申请日：2007-04-11

申请人： Mark Steven Bayus ,  Mark P. Bendyk ,  Roger Gregory Hathorn ,  Steven Edward Klein

发明人： Mark Steven Bayus ,  Mark P. Bendyk ,  Roger Gregory Hathorn ,  Steven Edward Klein

IPC分类号： G06F11/00

CPC分类号： G06F11/1441

摘要： Provided are techniques for determining a link speed. When a link between two computing devices is operational, a link speed for use in communicating across the link is stored and a remembered indicator is set to TRUE. After any event occurs that causes the link to become inoperational, in response to determining that the remembered indicator is TRUE, the stored link speed is used when attempting to make the link become operational.

摘要翻译： 提供了用于确定链路速度的技术。 当两个计算设备之间的链路可操作时，存储用于通过链路进行通信的链路速度，并将记忆指示符设置为TRUE。 在导致链路变得无法工作的任何事件之后，响应于确定所记忆的指示符为真，当尝试使链路变得可操作时，使用所存储的链路速度。

公开(公告)号：US20090319822A1

公开(公告)日：2009-12-24

申请号：US12141866

申请日：2008-06-18

申请人： Juan Alonso Coronado ,  Roger Gregory Hathorn ,  Bret Wayne Holley ,  Clarisa Valencia

发明人： Juan Alonso Coronado ,  Roger Gregory Hathorn ,  Bret Wayne Holley ,  Clarisa Valencia

IPC分类号： G06F11/00

CPC分类号： G06F11/0727 ,  G06F11/076 ,  G06F11/32 ,  H04L43/0811 ,  H04L43/0847 ,  H04L43/16 ,  H04L67/1097

摘要： A method to minimize performance degradation during communication path failure in a data processing system, comprising a host computer, a storage controller, and a plurality of physical communication paths in communication with the host computer and the storage controller, where the method establishes a. threshold communication path error rate, and determines an (i)th actual communication path error rate for an (i)th physical communication path, wherein that (i)th communication path is one of the plurality of physical communication paths. If the (i)th actual communication path error rate is greater than the threshold communication path error rate, the method discontinues use of the (i)th physical communication path.

摘要翻译： 一种在数据处理系统中的通信路径故障期间最小化性能下降的方法，包括主机计算机，存储控制器以及与主计算机和存储控制器通信的多个物理通信路径，其中该方法建立。 并且确定第（i）个物理通信路径的第（i）个实际通信路径错误率，其中，所述第（i）通信路径是所述多个物理通信路径中的一个。 如果（i）实际通信路径错误率大于阈值通信路径错误率，则该方法停止使用第（i）个物理通信路径。

公开(公告)号：US20090083447A1

公开(公告)日：2009-03-26

申请号：US12328437

申请日：2008-12-04

申请人： Roger Gregory Hathorn ,  Matthew Joseph Kalos ,  William Frank Micka

发明人： Roger Gregory Hathorn ,  Matthew Joseph Kalos ,  William Frank Micka

IPC分类号： G06F3/00

CPC分类号： G06F3/0659 ,  G06F3/0611 ,  G06F3/065 ,  G06F3/067

摘要： Provided are a system and an article of manufacture, wherein a primary storage control unit receives an information unit from a remote host over a fibre channel connection. The primary storage control unit adjusts an information unit pacing parameter included in a response sent from the primary storage control unit to the remote host, wherein the information unit pacing parameter indicates the number of information units that the remote host is allowed to send to the primary storage control unit without waiting for any additional response from the primary storage control unit.

摘要翻译： 提供了一种系统和制品，其中主存储控制单元通过光纤通道连接从远程主机接收信息单元。 主存储控制单元将从主存储控制单元发送的响应中包括的信息单元起搏参数调整到远程主机，其中信息单元起搏参数指示允许远程主机发送给主站的信息单元的数量 存储控制单元，而不等待主存储控制单元的任何附加响应。

公开(公告)号：US20090043880A1

公开(公告)日：2009-02-12

申请号：US11834639

申请日：2007-08-06

申请人： Louie Arthur Dickens ,  Roger Gregory Hathorn ,  Nils Haustein ,  Craig Anthony Klein ,  Daniel James Winarski

发明人： Louie Arthur Dickens ,  Roger Gregory Hathorn ,  Nils Haustein ,  Craig Anthony Klein ,  Daniel James Winarski

IPC分类号： G06F15/173

CPC分类号： H04L47/10 ,  H04L47/28 ,  H04L47/33 ,  H04L47/39

摘要： Provided are a method, system, and article of manufacture for credit depletion notification for transmitting frames between a port pair. Credits indicate a number of outstanding frames a first device may transmit to a second device. The credits are decremented in response to transmitting a frame to the second device. The credits are incremented in response to receiving a ready code from the second device indicating that the second device processed the transmitted frame. A determination is made as to whether additional credits are needed for communicating frames from the first device to the second device. A credit depletion notification is sent to the second device in response to determining that the additional credits are needed for communication with the second device.

摘要翻译： 提供了用于在端口对之间传输帧的信用消除通知的方法，系统和制造。 信用指示第一设备可能向第二设备发送的未完成帧的数量。 响应于向第二设备发送帧而减少信用。 响应于从第二设备接收到就绪代码指示第二设备处理所发送的帧，信用增加。 确定是否需要额外的信用来将帧从第一设备传送到第二设备。 响应于确定需要附加信用以与第二设备进行通信，将信用消耗通知发送到第二设备。

公开(公告)号：US20080215741A1

公开(公告)日：2008-09-04

申请号：US12101092

申请日：2008-04-10

申请人： Mark Steven Bayus ,  Roger Gregory Hathorn ,  Bret Wayne Holley

发明人： Mark Steven Bayus ,  Roger Gregory Hathorn ,  Bret Wayne Holley

IPC分类号： G06F15/16

CPC分类号： G06F9/5027 ,  G06F2209/508

摘要： Provided are a system and article of manufacture for establishing and requesting status on a computational resource. An operation is performed to establish a computational resource, wherein the computational resource is not available until the establish operation is completed. A determination is made as to whether a status request to determine status of the computational resource is pending before the establish operation has completed. Indication is made to resubmit the status request if there is a status request for the computational resource pending before the establish operation has completed.

摘要翻译： 提供了一种用于在计算资源上建立和请求状态的系统和制品。 执行操作以建立计算资源，其中计算资源在建立操作完成之前是不可用的。 在建立操作完成之前，确定确定计算资源的状态的状态请求是否正在等待。 如果在建立操作完成之前对计算资源有待处理的状态请求，则指示重新提交状态请求。

公开(公告)号：US06349350B1

公开(公告)日：2002-02-19

申请号：US09304736

申请日：1999-05-04

申请人： Roger Gregory Hathorn ,  Bret Wayne Holley ,  James Lincoln Iskiyan

发明人： Roger Gregory Hathorn ,  Bret Wayne Holley ,  James Lincoln Iskiyan

IPC分类号： G06F1300

CPC分类号： G06F11/1443

摘要： Disclosed is a system, method, and program for managing I/O operations transmitted from a computer system to a processing unit. The processing unit manages access to a storage device and executes the I/O operation against the storage device. The processing unit receives indication that a request to connect between the processing unit and the computer system failed. Upon receiving a subsequent I/O operation from the computer system after receiving indication that the connect request failed, the processing unit returns busy to the computer system initiating the subsequent I/O operation in response to receiving indication that the connect request failed. The connect request is retried after returning busy.

摘要翻译： 公开了一种用于管理从计算机系统发送到处理单元的I / O操作的系统，方法和程序。 处理单元管理对存储设备的访问并对存储设备执行I / O操作。 处理单元接收指示处理单元和计算机系统之间的连接请求失败。 在接收到连接请求失败的指示之后从计算机系统接收到随后的I / O操作，响应于接收到连接请求失败的指示，处理单元返回繁忙到启动后续I / O操作的计算机系统。 返回忙时重新连接请求。

公开(公告)号：US5920695A

公开(公告)日：1999-07-06

申请号：US782474

申请日：1997-01-10

申请人： Roger Gregory Hathorn ,  Bret Wayne Holley ,  James Lincoln Iskiyan ,  William Frank Micka

发明人： Roger Gregory Hathorn ,  Bret Wayne Holley ,  James Lincoln Iskiyan ,  William Frank Micka

IPC分类号： G06F3/06 ,  G06F13/12 ,  G06F13/14 ,  G06F13/00

CPC分类号： G06F13/122

摘要： A method for establishing bilateral communications over a single ESCON link coupling a pair of control units. The method steps include (a) permitting link address acquisition between directly connected link-level facilities that simultaneously assume the role of a master control unit in a peer-to-peer remote copy (PPRC) configuration, (b) resolving conflicting device-level frames that initiate a path to a device (also termed an I/O connection), and (c) dynamically determining the role assumed by a link-level facility (master or slave) when a single logical path is shared.

摘要翻译： 一种用于通过耦合一对控制单元的单个ESCON链路建立双向通信的方法。 方法步骤包括：（a）允许在对等远程复制（PPRC）配置中同时承担主控单元的角色的直接连接的链路级设施之间的链路地址获取，（b）解决冲突的设备级 启动到设备（也称为I / O连接）的路径的帧，以及（c）当共享单个逻辑路径时动态地确定链路级设施（主机或从机）所承担的角色。