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1. 发明授权

US5339427A Method and apparatus for distributed locking of shared data, employing a central coupling facility 失效
标题翻译：共享数据的分布式锁定方法和装置，采用中央耦合设备
公开(公告)号：US5339427A
公开(公告)日：1994-08-16
申请号：US860808
申请日：1992-03-30
申请人： David A. Elko , John F. Isenberg, Jr. , Brian B. Moore , Jimmy P. Strickland , Michael D. Swanson , George W. Wang
发明人： David A. Elko , John F. Isenberg, Jr. , Brian B. Moore , Jimmy P. Strickland , Michael D. Swanson , George W. Wang
IPC分类号： G06F9/46 , G06F12/14
CPC分类号： G06F9/52
摘要： A shared coupling facility contains system lock management (SLM) means for supporting a distributed locking protocol used by a plurality of sharing lock managers each executing on a processor having access to the shared memory and to any other processors in the processor complex. A request to lock a resource shared among the lock managers is first checked against a local hash table and then, if necessary, forwarded to the system lock management means in the shared memory for synchronous or asynchronous processing. List structures are maintained in the shared coupling facility to support the protocol, and are used by the system lock management means to record data recovery status. The sharing lock managers interact with the SLM means to control/manage lock contention, waiter queueing, and compatibility processing.
摘要翻译：共享耦合设施包括系统锁管理（SLM）装置，用于支持多个共享锁管理器使用的分布式锁定协议，每个共享锁管理器在具有访问共享存储器的处理器和处理器复合体中的任何其他处理器上执行。首先针对本地哈希表检查锁定管理器之间共享的资源的请求，然后如果需要，转发到共享存储器中的系统锁管理装置，以进行同步或异步处理。列表结构保持在共享耦合设施中以支持协议，并被系统锁管理装置用于记录数据恢复状态。共享锁管理器与SLM进行交互，以控制/管理锁争用，服务员排队和兼容性处理。

2. 发明授权

US5317739A Method and apparatus for coupling data processing systems 失效
标题翻译：耦合数据处理系统的方法和装置
公开(公告)号：US5317739A
公开(公告)日：1994-05-31
申请号：US860803
申请日：1992-03-30
申请人： David A. Elko , Jeffrey A. Frey , John F. Isenberg, Jr. , Jeffery M. Mick , Jimmy P. Strickland , Michael D. Swanson , Audrey A. Helffrich , Brian B. Moore
发明人： David A. Elko , Jeffrey A. Frey , John F. Isenberg, Jr. , Jeffery M. Mick , Jimmy P. Strickland , Michael D. Swanson , Audrey A. Helffrich , Brian B. Moore
IPC分类号： G06F12/00 , G06F9/46 , G06F9/52 , G06F15/17 , G06F15/16 , G06F13/00
CPC分类号： G06F9/542 , G06F9/546
摘要： A Structured External Storage (SES) device/processor is connected to two or more DP systems, thereby loosely coupling the systems. The SES is capable of holding data objects of two distinct types (List objects and Cache objects), and communicates commands and command responses with the systems using a message protocol. A support facility within a processor on which a system is executing receives status indications from the SES without interrupting mainline system execution. Within the SES, a serialization mechanism allows more than one command to execute in parallel without loss of data object integrity, or command consistency. A forward completion mechanism sends to systems early notification of completion of certain commands, without permitting results inconsistent with this notification to be obtained by the systems. And a restart mechanism permits interrupted commands to be restarted by the initiating system or, in certain cases, by another system.
摘要翻译：结构化外部存储（SES）设备/处理器连接到两个或更多个DP系统，从而松散地耦合系统。 SES能够保存两种不同类型的数据对象（List对象和Cache对象），并使用消息协议与系统通信命令和命令响应。在系统正在执行的处理器内的支持设施从SES接收状态指示，而不会中断主线系统的执行。在SES中，序列化机制允许多个命令并行执行，而不会丢失数据对象完整性或命令一致性。前向完成机制向系统提前通知某些命令的完成，而不允许系统获得与此通知不一致的结果。并且重新启动机制允许中断的命令由启动系统重新启动，或者在某些情况下由另一个系统重新启动。

3. 发明授权

US5537574A Sysplex shared data coherency method 失效
标题翻译： Sysplex共享数据一致性方法
公开(公告)号：US5537574A
公开(公告)日：1996-07-16
申请号：US860805
申请日：1992-03-30
申请人： David A. Elko , Jeffrey A. Frey , John F. Isenberg, Jr. , Chandrasekaran Mohan , Inderpal S. Narang , Jeffrey M. Nick , Jimmy P. Strickland , Michael D. Swanson
发明人： David A. Elko , Jeffrey A. Frey , John F. Isenberg, Jr. , Chandrasekaran Mohan , Inderpal S. Narang , Jeffrey M. Nick , Jimmy P. Strickland , Michael D. Swanson
IPC分类号： G06F12/00 , G06F9/46 , G06F12/08 , G06F13/00
CPC分类号： G06F9/52 , G06F12/0811 , G06F12/0815 , G06F12/084 , G06F12/0866
摘要： A method for controlling coherence of data elements sharable among a plurality of independently-operating CPCs (central processing complexes) in a multi-system complex (called a parallel sysplex) which contains sysplex DASDds (direct access storage devices) and a high-speed SES (shared electronic storage) facility. Sysplex shared data elements are stored in the sysplex DASD under a unique sysplex data element name, which is used for sysplex coherence control. Any CPC may copy any sysplex data element into a local cache buffers (LCB) in the CPC's main storage, where it has an associated sysplex validity bit. The copying CPC executes a sysplex coherence registration command which requests a SES processor to verify that the data element name already exists in the SES cache, and to store the name of the data element in a SES cache entry if found in the SES cache. Importantly, the registration command communicates to SES the CPC location of the validity bit for the LCB containing that data element copy. Each time another copy of the data element is stored in any CPC LCB, a registration command is executed to store the location of that copy's CPC validity bit into a local cache register (LCR) associated with its data element name. In this manner, each LCR accumulates all CPC locations for all LCB validity bits for all valid copies of the associated data element in the sysplex -- for maintaining data coherency throughout the sysplex.
摘要翻译：一种用于控制在多系统复合体（称为并行系统复合体）中的多个独立操作的CPC（中央处理复合体）之间可共享的数据元素的相干性的方法，其包含系统复合DASDds（直接访问存储设备）和高速SES （共享电子存储）设施。 Sysplex共享数据元素以独特的sysplex数据元素名称存储在系统复合DASD中，用于进行系统复合相干控制。任何CPC都可以将任何sysplex数据元素复制到CPC的主存储器中的本地缓存缓冲区（LCB）中，其中具有相关联的系统复合有效性位。复制CPC执行系统复合一致性注册命令，该命令请求SES处理器验证数据元素名称是否已经存在于SES缓存中，并且如果在SES缓存中存在，则将数据元素的名称存储在SES缓存条目中。重要的是，注册命令与SES通信包含该数据元素副本的LCB的有效位的CPC位置。每当数据元素的另一副本存储在任何CPC LCB中时，执行注册命令以将该副本的CPC有效位的位置存储到与其数据元素名称相关联的本地高速缓存寄存器（LCR）中。以这种方式，每个LCR对于sysplex中相关联的数据元素的所有有效副本累积所有LCB有效位的所有CPC位置，以保持整个系统复杂度的数据一致性。

4. 发明授权

US5561809A In a multiprocessing system having a coupling facility, communicating messages between the processors and the coupling facility in either a synchronous operation or an asynchronous operation 失效
标题翻译：在具有耦合设施的多处理系统中，在同步操作或异步操作中，在处理器和耦合设施之间传送消息
公开(公告)号：US5561809A
公开(公告)日：1996-10-01
申请号：US420893
申请日：1995-04-11
申请人： David A. Elko , Audrey A. Helffrich , John F. Isenberg, Jr. , Brian B. Moore , Jeffrey M. Nick , Michael D. Swanson , Joseph A. Williams
发明人： David A. Elko , Audrey A. Helffrich , John F. Isenberg, Jr. , Brian B. Moore , Jeffrey M. Nick , Michael D. Swanson , Joseph A. Williams
IPC分类号： G06F13/00 , G06F13/12 , G06F15/17 , G06F15/173 , G06F15/00
CPC分类号： G06F15/17375 , G06F13/122 , G06F15/17
摘要： A mechanism for communicating messages, each including a command and a response, in a network having central processing complexes (CPCs) and one or more coupling facilities. Each coupling facility has a central processor for executing instructions and a main storage. Messages are sent from a message control block in the main storage of the CPC sending the message, and the response to the message is received in a message response block of the CPC without an interrupt to the program being executed by the central processor of the CPC. Each message from a CPC to the coupling facility may include a command and an indicator bit which instructs the coupling facility to execute the command either in synchronism with or asynchronously to the execution of the sending processor. The coupling facility executes the command and returns a response which is received in a message response block of the main storage of the sending CPC without an interrupt to any program being executed by the central processor of that CPC.
摘要翻译：一种用于在具有中央处理复合体（CPC）和一个或多个耦合设施的网络中传送各自包括命令和响应的消息的机制。每个耦合设备具有用于执行指令和主存储器的中央处理器。消息从发送消息的CPC的主存储器中的消息控制块发送，并且在CPC的消息响应块中接收到对消息的响应，而没有中断由CPC的中央处理器执行的程序的中断。来自CPC到耦合设施的每个消息可以包括指令和指示符比特，其指示耦合设备与发送处理器的执行同步或异步地执行命令。耦合设备执行命令并返回在发送CPC的主存储器的消息响应块中接收的响应，而不会中断由该CPC的中央处理器执行的任何程序。

5. 发明授权

US5394554A Interdicting I/O and messaging operations from sending central processing complex to other central processing complexes and to I/O device in multi-system complex 失效
标题翻译：将I / O和消息操作从发送中央处理复合体到其他中央处理复合体以及多系统复杂的I / O设备
公开(公告)号：US5394554A
公开(公告)日：1995-02-28
申请号：US860489
申请日：1992-03-30
申请人： David A. Elko , John F. Isenberg, Jr. , Allan S. Meritt , Brian B. Moore , Jeffrey M. Nick , William C. Shepard , David H. Surman , Michael D. Swanson
发明人： David A. Elko , John F. Isenberg, Jr. , Allan S. Meritt , Brian B. Moore , Jeffrey M. Nick , William C. Shepard , David H. Surman , Michael D. Swanson
IPC分类号： G06F15/17 , G06F13/00
CPC分类号： G06F15/17
摘要： In a multi-system complex having central processing complexes (CPCs) and subsystems, a hardware facility for prompt interdicting I/O and message operations. A CPC or subsystem failure causes as interruption in the availability of the data bases to the attached network of terminals. Often such networks have thousands of terminals. Even a short loss of data is detrimental. Therefore the CPC or subsystem takeover must be accomplished as quickly as possible and the I/O attached to the failing CPC or subsystem must be interdicting to release it for use to the rest of the complex. The disclosed hardware facility provides a mechanism which is program initiated and controlled and which guarantees the prompt completion of the interdiction function.
摘要翻译：在具有中央处理复合体（CPC）和子系统的多系统复合体中，提供了一种硬件设施，用于迅速地阻止I / O和消息操作。 CPC或子系统故障导致连接的终端网络的数据库的可用性中断。通常这样的网络有数千个终端。即使是短暂的数据丢失也是有害的。因此，CPC或子系统的接管必须尽可能快地完成，并且连接失败的CPC或子系统的I / O必须被阻止，以将其释放以供其他复合体使用。所公开的硬件设施提供了一种程序启动和控制的机制，并且确保迅速完成拦截功能。

6. 发明授权

US5463736A Coupling facility for receiving commands from plurality of hosts for activating selected connection paths to I/O devices and maintaining status thereof 失效
标题翻译：用于从多个主机接收命令的耦合设备，用于激活对I / O设备的选择的连接路径并维持其状态
公开(公告)号：US5463736A
公开(公告)日：1995-10-31
申请号：US324447
申请日：1994-10-18
申请人： David A. Elko , Jeffrey A. Frey , Audrey A. Helffrich , John F. Isenberg, Jr. , Brian B. Moore , Jeffery M. Nick , Michael D. Swanson , Joseph A. Williams
发明人： David A. Elko , Jeffrey A. Frey , Audrey A. Helffrich , John F. Isenberg, Jr. , Brian B. Moore , Jeffery M. Nick , Michael D. Swanson , Joseph A. Williams
IPC分类号： G06F13/14 , G06F13/12 , G06F15/17 , G06F17/30
CPC分类号： G06F17/30985 , G06F13/122
摘要： A message path mechanism in a network having central processing complexes (CPCs) joined by message paths to a coupling facility. The coupling facility locates message paths for sending messages from one CPC to another and for sending messages between the coupling facility and one or more of the CPCs. A message path status table is provided having an entry for each of the message paths. Each entry has an indicator indicating whether its message path is active or inactive. multiple connections between the coupling facility and systems in the CPCs are registered in the coupling facility. Also provided is a mechanism for validating that each message path is connected properly such that if a message path is disconnected and then reconnected to a CPC, the validation mechanism insures that the message path has been reconnected correctly.
摘要翻译：网络中的消息路径机制，具有通过消息路径连接到耦合设备的中央处理复合体（CPC）。耦合设备定位用于将消息从一个CPC发送到另一个CPC的消息路径，并用于在耦合设施和一个或多个CPC之间发送消息。提供消息路径状态表，其具有用于每个消息路径的条目。每个条目都有一个指示符，指示其消息路径是活动还是非活动。耦合设备和CPC之间的系统之间的多个连接被注册在耦合设备中。还提供了用于验证每个消息路径被正确连接的机制，使得如果消息路径被断开并且然后重新连接到CPC，则验证机制确保消息路径已被重新正确连接。

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