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11. 发明授权

US5388254A Method and means for limiting duration of input/output (I/O) requests 失效
标题翻译：用于限制输入/输出（I / O）请求的持续时间的方法和手段
公开(公告)号：US5388254A
公开(公告)日：1995-02-07
申请号：US858905
申请日：1992-03-27
申请人： John F. Betz , Allan S. Meritt , Larry R. Perry , William C. Shepard , Harry M. Yudenfriend
发明人： John F. Betz , Allan S. Meritt , Larry R. Perry , William C. Shepard , Harry M. Yudenfriend
IPC分类号： G06F11/00 , G06F11/14 , G06F11/30 , G06F11/34
CPC分类号： G06F11/1402 , G06F11/0757
摘要： An I/O request time limit value is set in a request-based, device-based, data-set-based, or workload-based time limit field, for transactions performing I/O operations to I/O devices in a data processing system. A scan routine compares the total time for the I/O request (including waiting time and retry time) against the appropriate time limit(s), and terminates the I/O request if the time limit is exceeded. If an active I/O request is interrupted as a result of an I/O error, retry is prohibited if the total I/O request time (including retry time) exceeds the appropriate time limit, or is within a threshold value of the appropriate time limit.
摘要翻译：对于在数据处理中对I / O设备执行I / O操作的事务，在基于请求的，基于设备的，基于数据集的或基于工作负载的时间限制字段中设置I / O请求时间限制值系统。扫描例程将I / O请求的总时间（包括等待时间和重试时间）与适当的时间限制进行比较，如果超过时间限制，则终止I / O请求。如果由于I / O错误导致活动I / O请求中断，如果总I / O请求时间（包括重试时间）超过适当的时间限制，或者在适当的时间限制范围内，则禁止重试时限。

12. 发明授权

US5301323A Data processing system including dynamic channel path management 失效
标题翻译：数据处理系统包括动态通道路径管理
公开(公告)号：US5301323A
公开(公告)日：1994-04-05
申请号：US968704
申请日：1992-10-30
申请人： Theodore R. Maeurer , Allan S. Meritt
发明人： Theodore R. Maeurer , Allan S. Meritt
IPC分类号： G06F11/34 , G06F13/12 , G06F13/14 , G06F15/173 , G06F13/00
CPC分类号： G06F15/17375 , G06F13/122
摘要： A large data processing system includes a channel path management program that is periodically executed during operation of the system to gather control unit and subchannel utilization statistics and to monitor such statistics. If the degree of utilization of a channel path or an I/O device exceeds a predetermined threshold value, one or more change(s) is(are) dynamically made in the channel path configuration.
摘要翻译：大型数据处理系统包括在系统操作期间周期性执行的信道路径管理程序，以收集控制单元和子信道利用率统计信息并监视此类统计信息。如果信道路径或I / O设备的利用程度超过预定阈值，则在信道路径配置中动态地进行一个或多个改变。

13. 发明授权

US4435755A Balanced channel finding method 失效
标题翻译：平衡渠道查找方法
公开(公告)号：US4435755A
公开(公告)日：1984-03-06
申请号：US334991
申请日：1981-12-28
申请人： Allan S. Meritt
发明人： Allan S. Meritt
IPC分类号： G06F13/12 , G06F13/40 , G06F3/00
CPC分类号： G06F13/4022 , G06F13/122
摘要： For a CPU I/O request, the disclosed methods find a physical channel path within a logical channel (LCH) likely to be connectable to a requested device by using channel path count (CAT count) fields. The CAT counts respectively indicate the current number of uncompleted requests accepted by the respective physical channels in the data processing system. An available physical channel in the LCH with the smallest CAT count is found as the candidate channel path for a connection attempt to the requested device. If the lowest CAT count is equal for plural available channel paths, any of these plural channel paths may be selected as the candidate channel path. The CAT count for a channel path is incremented for each successful connection of any device to that channel path. The CAT count for a channel path is decremented upon receiving a signal indicating that a successfully connected I/O device has completed the operation for a request. CAT counts indicate the current load on each physical channel across all LCHs in which the physical channels may be contained. The CAT counts indicate the relative likelihood of the physical channels within a LCH being non-busy relative to each other in order to find the channel path most likely to be non-busy and thereby avoid a RPS miss when a requested DASD record is reached during disk rotation. Choosing the channel paths with the lowest available CAT counts balances the load among the physical channels across all LCHs containing the same physical channel.
摘要翻译：对于CPU I / O请求，所公开的方法通过使用信道路径计数（CAT计数）字段找到可能可连接到所请求的设备的逻辑信道（LCH）内的物理信道路径。 CAT计数分别表示数据处理系统中相应物理信道接受的当前未完成请求数。找到具有最小CAT计数的LCH中的可用物理信道作为到所请求设备的连接尝试的候选信道路径。如果对于多个可用信道路径，最低的CAT计数相等，则可以选择这些多个信道路径中的任一个作为候选信道路径。每个成功连接任何设备到该通道路径的通道路径的CAT计数递增。当接收到指示成功连接的I / O设备已经完成了请求的操作的信号时，通道路径的CAT计数递减。 CAT计数表示跨物理通道可能包含的所有LCH的每个物理信道上的当前负载。 CAT计数指示LCH内的物理信道相对于彼此不相关的相对似然性，以便找到最可能是非忙的信道路径，从而在达到所请求的DASD记录时避免RPS丢失磁盘旋转。选择具有最低可用CAT计数的信道路径平衡包含相同物理信道的所有LCH的物理信道之间的负载。

14. 发明授权

US06397350B1 Method of providing direct data processing access using a queued direct input-output device 有权
标题翻译：使用排队的直接输入 - 输出设备提供直接数据处理访问的方法
公开(公告)号：US06397350B1
公开(公告)日：2002-05-28
申请号：US09253246
申请日：1999-02-19
申请人： Michael E. Baskey , Steven G. Glassen , Eugene P. Hefferon , Bruce H. Ratcliff , Arthur J. Stagg , Stephen R. Valley , Daniel F. Casper , Allan S. Meritt , Anthony R. Sager , Donald W. Schmidt
发明人： Michael E. Baskey , Steven G. Glassen , Eugene P. Hefferon , Bruce H. Ratcliff , Arthur J. Stagg , Stephen R. Valley , Daniel F. Casper , Allan S. Meritt , Anthony R. Sager , Donald W. Schmidt
IPC分类号： G06F1100
CPC分类号： G06F3/061 , G06F3/0656 , G06F3/0683
摘要： A method of providing direct data processing access in a network computing system environment. The system environment has a main storage which can be connected to one or more application servers and is in processing communication with an interface element. The interface element has at least one adapter and can be connected to one or more application user(s). One or more queues are established in the main storage that can handle data without causing interrupts in the running programs. Incoming data is received using the adapter and as data is received or modified, the status of the network computing system will be updated to reflect the new data or change. Data is then processed in the main storage after interrogating the multiple existing queues in the main storage and forwarding them in turn to their appropriate destination or application server after a determination has been made by interrogating these queues.
摘要翻译：一种在网络计算系统环境中提供直接数据处理访问的方法。系统环境具有可以连接到一个或多个应用服务器并正在处理与接口元件的通信的主存储器。接口元件具有至少一个适配器并且可以连接到一个或多个应用用户。在主存储器中建立一个或多个队列，可以处理数据，而不会导致正在运行的程序中断。使用适配器接收传入数据，并且随着数据被接收或修改，网络计算系统的状态将被更新以反映新的数据或改变。然后在主存储器中询问多个现有队列之后，在主存储器中处理数据，并且在通过询问这些队列进行确定之后将它们依次转发到其适当的目的地或应用服务器。

15. 发明授权

US5613163A Method and system for predefined suspension and resumption control over I/O programs 失效
标题翻译：用于I / O程序的预定义暂停和恢复控制的方法和系统
公开(公告)号：US5613163A
公开(公告)日：1997-03-18
申请号：US342459
申请日：1994-11-18
申请人： Assaf Marron , Allan S. Meritt
发明人： Assaf Marron , Allan S. Meritt
IPC分类号： G06F13/12 , G06F3/00 , G06F3/04
CPC分类号： G06F13/126
摘要： Execution of input/output operations is controlled by one or more suspend and/or resume mechanisms. Suspension of an input/output operation is accomplished by one of a number of mechanisms including, for instance, a START SUBCHANNEL instruction with execution limits, a SUSPEND SUBCHANNEL instruction with or without a suspension time limit, or a suspend subchannel channel command word with or without a suspension time limit. Subsequent to suspending execution of a channel program, execution can be resumed automatically or by issuing a RESUME SUBCHANNEL instruction with limits or a resume subchannel channel command word with limits.
摘要翻译：输入/输出操作的执行由一个或多个挂起和/或恢复机制控制。输入/输出操作的暂停通过多种机制中的一种实现，包括例如具有执行限制的START SUBCHANNEL指令，具有或不具有暂停时间限制的SUSPEND SUBCHANNEL指令或具有或不具有暂停时间限制的挂起子通道通道命令字，没有暂停时间限制。在暂停执行通道程序之后，可以自动恢复执行，或者通过发出具有限制的恢复子通道指令或具有限制的恢复子通道通道命令字。

16. 发明授权

US5371897A Method for requesting identification of a neighbor node in a data processing I/O system 失效
标题翻译：在数据处理I / O系统中请求识别邻居节点的方法
公开(公告)号：US5371897A
公开(公告)日：1994-12-06
申请号：US750356
申请日：1991-08-27
申请人： Paul J. Brown , Kenneth J. Fredericks, Sr. , Eugene P. Hefferon , Gerald T. Moffitt , Allan S. Meritt
发明人： Paul J. Brown , Kenneth J. Fredericks, Sr. , Eugene P. Hefferon , Gerald T. Moffitt , Allan S. Meritt
IPC分类号： G06F13/14 , G06F13/00 , H04L29/00
CPC分类号： H04L29/00
摘要： A method for acquiring the node identifier of a node in a data processing input/output (I/O) system having a plurality of nodes. This procedure is part of the initialization of each node in the I/O system and may be used to establish the configuration of the I/O system such that if a connection breaks or a fault occurs between nodes, the configuration can be confirmed after the break or fault is corrected. This prevents data from being sent to the wrong device if lines were connected in a different configuration during the correction of a fault. The node identifier is a worldwide-unique identifier such that only one node is identified by a node identifier. The node identifier contains a validity code that specifies if the node identifier is valid. Also disclosed is a retry procedure for retrying the acquisition of a node identifier if the acquired node identifier is not valid, and a deferral procedure which defers the retry procedure if a link is not available.
摘要翻译：一种用于获取具有多个节点的数据处理输入/输出（I / O）系统中的节点的节点标识符的方法。该过程是I / O系统中每个节点的初始化的一部分，可用于建立I / O系统的配置，以便如果连接中断或节点之间发生故障，则可以在故障或故障已更正。这可以防止在校正故障期间将线路连接到不同配置中时将数据发送到错误的设备。节点标识符是全球唯一的标识符，使得仅一个节点由节点标识符标识。节点标识符包含指定节点标识符是否有效的有效性代码。还公开了如果获取的节点标识符无效，则重试对节点标识符的获取的重试过程，以及如果链路不可用则延迟重试过程的延迟过程。

17. 发明授权

US5530897A System for dynamic association of a variable number of device addresses with input/output devices to allow increased concurrent requests for access to the input/output devices 失效
标题翻译：用于将可变数量的设备地址与输入/输出设备动态关联的系统，以允许增加对访问输入/输出设备的并发请求
公开(公告)号：US5530897A
公开(公告)日：1996-06-25
申请号：US130218
申请日：1993-10-01
申请人： Allan S. Meritt
发明人： Allan S. Meritt
IPC分类号： G06F13/12 , G06F13/00 , G06F13/14 , G06F13/38
CPC分类号： G06F13/122
摘要： Disclosed is a data processing system for presenting concurrent requests for access to peripheral devices up to the number of subchannels available for handling input/output operations. A computer system provides a plurality of subchannels and affiliated unit control blocks for input/output operations between main storage and the peripheral devices. The unit control blocks comprise two groups, including a first dedicated to the peripheral devices and a second group available for dynamic association with the peripheral devices on a demand basis. The unit control blocks are termed base unit control blocks and alias unit control blocks, respectively. Upon system initialization, alias unit control blocks for a given logical subsystem are linked in a free pool. To initiate an input/output operation a program executing on the CPU first queries a base unit control block for a target peripheral device to determine its availability. If available, the base unit control block and associated base subchannel are used for the input/output operation. If not, determination is made if an alias unit control block may be used and if any are available. Responsive to affirmative determinations, an alias unit control block is removed from the free pool and is linked to the base unit control device for the target peripheral device in an exposure chain. The CPU then places a channel program in main storage including a prefix channel command for binding an alias address for the alias unit control block with a particular device. This is done by passing the binding command to a controller for the target peripheral device which maintains tables of affiliations between aliases and peripheral devices on a path group basis. After binding, the input/output operation proceeds in conventional fashion.
摘要翻译：公开了一种数据处理系统，用于呈现用于访问外围设备的并发请求，直到可用于处理输入/输出操作的子信道的数量。计算机系统为主存储器和外围设备之间的输入/输出操作提供多个子信道和附属单元控制块。单元控制块包括两组，包括专用于外围设备的第一组和可根据需要与外围设备动态关联的第二组。单元控制块分别称为基本单元控制块和别名单元控制块。在系统初始化时，给定逻辑子系统的别名单元控制块在可用池中进行链接。为了启动输入/输出操作，在CPU上执行的程序首先查询目标外围设备的基本单元控制块以确定其可用性。如果可用，基本单元控制块和相关联的基本子信道用于输入/输出操作。如果没有，则确定是否可以使用别名单元控制块，如果有可用的话。响应于肯定性确定，从空闲池中移除别名单元控制块，并将其链接到暴露链中的目标外围设备的基本单元控制设备。然后，CPU将信道节目放置在主存储器中，包括前缀信道命令，用于将特定设备的别名单元控制块的别名地址绑定。这通过将绑定命令传递给目标外围设备的控制器，该控制器在路径组的基础上维护别名和外围设备之间的关联表。装订后，输入/输出操作以常规方式进行。

18. 发明授权

US5416921A Apparatus and accompanying method for use in a sysplex environment for performing escalated isolation of a sysplex component in the event of a failure 失效
标题翻译：在sysplex环境中使用的装置和相关方法，用于在发生故障时执行sysplex组件的升级隔离
公开(公告)号：US5416921A
公开(公告)日：1995-05-16
申请号：US147351
申请日：1993-11-03
申请人： Jeffrey A. Frey , Lisa M. Goetze , Allan S. Meritt , Jeffrey M. Nick , William C. Shepard , David H. Surman , Michael D. Swanson
发明人： Jeffrey A. Frey , Lisa M. Goetze , Allan S. Meritt , Jeffrey M. Nick , William C. Shepard , David H. Surman , Michael D. Swanson
IPC分类号： G06F11/20
CPC分类号： G06F11/2035 , G06F11/2046
摘要： Apparatus and accompanying methods for use in preferably a multi-system shared data (sysplex (5)) environment which quickly and efficiently isolates (fences), through a pre-defined hierarchical order, failed sysplex components from accessing shared data in order to protect data integrity. Specifically, by dividing a sysplex workload into specified fence groups (FG A, FG B) and providing appropriate software and hardware fence support, fencing can occur at various distinct levels: a member-to-member level, i.e. to allow any member (220, 225, 230, 233,237) of a fence group to fully isolate any other ("target") member of that same group; a fence group level, i.e. to isolate all members of a fence group that execute on a "target" system (200.sub.1, 200.sub.2, 200.sub.3); and a system level, i.e. to fully isolate an entire "target" system. Through pre-defined escalation rules (630), fencing can be escalated from a lower member level to a higher, group or system, level in the event a lower level fence can not be successfully imposed. Member level fencing is accomplished in software (1300, 1500); group and system level fencing is accomplished through dedicated hardware fencing facilities (44). An identifier (444, 464) uniquely designates each different fence group existing on a computer processing complex (CPC) (40.sub.1, 40.sub.2, 40.sub.3, 40.sub.M) in the sysplex over the life of that CPC. Advantageously, this technique eliminates erroneous back level fencing, significantly expedites fence processing and also greatly reduces a need for human intervention.
摘要翻译：用于优选多系统共享数据（sysplex（5））环境的装置和伴随方法通过预定义的分级顺序快速有效地隔离（围栏）使得系统组件不能访问共享数据以保护数据诚信具体来说，通过将系统工作负载划分为指定的栅栏组（FG A，FG B）并提供适当的软件和硬件围栏支持，防护可以在各种不同的级别发生：成员级别，即允许任何成员（220 ，225,230,233,237），以完全隔离同一组的任何其他（“目标”）成员; 围墙组级别，即隔离在“目标”系统上执行的围栏组的所有成员（2001,2002,2003）; 和系统级别，即完全隔离整个“目标”系统。通过预定义的升级规则（630），如果无法成功施加较低级别的围栏，则围栏可以从较低的成员级别升级到较高的组或系统级别。成员级围栏是用软件完成的（1300，1500）; 组和系统级围栏通过专用的硬体围栏设施完成（44）。标识符（444,446）唯一地指定存在于该CPC的整个生命周期中的系统复合体中的计算机处理复合体（CPC）（401,402,403,40M）上的每个不同的栅栏组。有利的是，这种技术消除了错误的背面水平围栏，显着地加快了围栏处理，并且还大大降低了人为干预的需要。

19. 发明授权

US4564903A Partitioned multiprocessor programming system 失效
标题翻译：分区多处理器编程系统
公开(公告)号：US4564903A
公开(公告)日：1986-01-14
申请号：US539762
申请日：1983-10-05
申请人： Richard R. Guyette , Eddie T. Hall , Allan S. Meritt , Stephen R. Newson , Casper A. Scalzi , Glenn W. Sears, Jr.
发明人： Richard R. Guyette , Eddie T. Hall , Allan S. Meritt , Stephen R. Newson , Casper A. Scalzi , Glenn W. Sears, Jr.
IPC分类号： G06F15/16 , G06F9/455 , G06F9/46 , G06F9/48 , G06F12/00 , G06F12/02 , G06F15/167
CPC分类号： G06F9/4843 , G06F9/45541 , G06F9/45558 , G06F12/0284 , G06F2009/45579
摘要： The disclosure provides a unique multiprocessing (MP) method for executing on plural CPUs of the MP a uniprocessor system (UPS) program not written to run on a MP system. Separate copies of the UPS are provided in the shared main storage (MS) of the MP. A hypervisor type of control program (called a partitioned multiprocessing system, PMP) uses the MP method to enable simultaneous execution of the plural copies of a UPS on different CPUs of the MP as UPS guest virtual machines. PMP can dedicate any CPU to the sole execution of a particular copy of UPS. The copies of the UPS run on the different CPUs independently of each other, but they may share I/O devices.
摘要翻译：本公开提供了一种独特的多处理（MP）方法，用于在MP的多个CPU上执行未写入在MP系统上运行的单处理器系统（UPS）程序。在MP的共享主存储（MS）中提供了单独的UPS副本。管理程序类型的控制程序（称为分区多处理系统PMP）使用MP方法来实现作为UPS客户虚拟机的MP的不同CPU上的多个副本的多个副本的同时执行。 PMP可以将任何CPU专用于UPS的特定副本的唯一执行。 UPS的副本彼此独立运行在不同的CPU上，但它们可以共享I / O设备。

20. 发明授权

US5584039A System for coordinating execution of multiple concurrent channel programs without host processor involvement using suspend and resume commands to control data transfer between I/O devices 失效
标题翻译：用于协调多个并行通道程序的执行的系统，而不使用主机处理器参与，使用挂起和恢复命令来控制I / O设备之间的数据传输
公开(公告)号：US5584039A
公开(公告)日：1996-12-10
申请号：US148795
申请日：1993-11-08
申请人： Francis E. Johnson , Allan S. Meritt , Assaf Marron
发明人： Francis E. Johnson , Allan S. Meritt , Assaf Marron
IPC分类号： G06F13/12 , G06F13/00
CPC分类号： G06F13/126
摘要： Coupling execution of channel programs without central processing unit supervision controls data transfer between input/output devices through a main storage of a data processing system. In one embodiment, channel programs to be coupled are generated by a program running on a data processing system central processing unit. The channel program on the input subchannel includes channel commands referencing the output subchannel and operating to cause resumption of the output subchannel. The channel program on the output subchannel includes suspend channel commands directed to itself which correspond to the resume channel commands in the channel program on the input subchannel. In alternative embodiments values in channel commands can change values in, or reference, control blocks to effect execution of other channel programs.
摘要翻译：没有中央处理单元监控的频道节目的耦合执行通过数据处理系统的主存储来控制输入/输出设备之间的数据传输。在一个实施例中，要耦合的频道节目由在数据处理系统中央处理单元上运行的节目产生。输入子信道上的信道节目包括参考输出子信道的信道命令，并且操作以使恢复输出子信道。输出子信道上的频道节目包括与输入子信道上的频道节目中的恢复频道命令相对应的针对自身的挂起频道命令。在替代实施例中，信道命令中的值可以改变控制块中的值或引用控制块来实现其他信道节目的执行。

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