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1. 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。

2. 发明授权

US5493668A Multiple processor system having software for selecting shared cache entries of an associated castout class for transfer to a DASD with one I/O operation 失效
标题翻译：多处理器系统具有用于选择用于通过一个I / O操作传送到DASD的关联的流出类的共享高速缓存条目的软件
公开(公告)号：US5493668A
公开(公告)日：1996-02-20
申请号：US860806
申请日：1992-03-30
申请人： David A. Elko , Jeffrey A. Frey , Chandrasekaran Mohan , Inderpal S. Narang , Jeffrey M. Nick , Jimmy P. Strickland , Michael D. Swanson
发明人： David A. Elko , Jeffrey A. Frey , Chandrasekaran Mohan , Inderpal S. Narang , Jeffrey M. Nick , Jimmy P. Strickland , Michael D. Swanson
IPC分类号： G06F12/08 , G06F12/12 , G06F12/02 , G06F13/00
CPC分类号： G06F12/084 , G06F12/0868 , G06F12/0804 , G06F12/128
摘要： A high-speed cache is shared by a plurality of independently-operating data systems in a multi-system data sharing complex. Each data system has access both to the high-speed cache and the lower-speed, secondary storage for obtaining and storing data. Management logic and the high-speed cache assures that a block of data obtained form the cache for entry into the secondary storage will be consistent with the version of the block of data in the shared cache with non-blocking serialization allowing access to a changed version in the cache while castout is being performed. Castout classes are provided to facilitate efficient movement from the shared cache to DASD.
摘要翻译：高速缓存由多系统数据共享复合体中的多个独立操作的数据系统共享。每个数据系统都可以访问高速缓存和低速二级存储，以获取和存储数据。管理逻辑和高速缓存确保从高速缓存获得的数据块进入辅助存储将与共享高速缓存中的数据块版本一致，具有允许访问更改版本的非阻塞序列化在执行castout时的缓存中。提供了Castout类，以便有效地从共享缓存移动到DASD。

3. 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。

4. 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。

5. 发明授权

US5544345A Coherence controls for store-multiple shared data coordinated by cache directory entries in a shared electronic storage 失效
标题翻译：用于由共享电子存储器中的高速缓存目录条目协调的存储多个共享数据的一致性控制
公开(公告)号：US5544345A
公开(公告)日：1996-08-06
申请号：US148707
申请日：1993-11-08
申请人： Kelly S. Carpenter , Gerard M. Dearing , Jeffrey M. Nick , Jimmy P. Strickland , Michael D. Swanson , Wendell W. Wilkinson
发明人： Kelly S. Carpenter , Gerard M. Dearing , Jeffrey M. Nick , Jimmy P. Strickland , Michael D. Swanson , Wendell W. Wilkinson
IPC分类号： G06F12/08 , G06F13/00 , G06F13/14
CPC分类号： G06F12/084 , G06F12/0866
摘要： A high-speed cache is shared by a plurality of independently-operating data systems in a multi-system data sharing complex. Each data system has access both to the high-speed cache and to lower-speed, upper-level storage for obtaining and storing data. Management logic in the shared high-speed cache is provided to meet the serialization and data coherency requirements of the data systems when sharing the high speed cache as a store-multiple cache in a multi-system environment.
摘要翻译：高速缓存由多系统数据共享复合体中的多个独立操作的数据系统共享。每个数据系统都可以访问高速缓存和较低速的上级存储，以获取和存储数据。提供共享高速缓存中的管理逻辑以在多系统环境中共享高速缓存作为存储多缓存时满足数据系统的串行化和数据一致性要求。

6. 发明授权

US4878167A Method for managing reuse of hard log space by mapping log data during state changes and discarding the log data 失效
标题翻译：通过在状态更改期间映射日志数据并丢弃日志数据来管理硬盘日志空间重用的方法
公开(公告)号：US4878167A
公开(公告)日：1989-10-31
申请号：US880387
申请日：1986-06-30
申请人： Kenneth M. Kapulka , Holly A. Rader , Jimmy P. Strickland
发明人： Kenneth M. Kapulka , Holly A. Rader , Jimmy P. Strickland
IPC分类号： G06F12/00 , G06F11/14
CPC分类号： G06F17/30368 , G06F17/30377 , G06F11/1471 , G06F2201/87
摘要： A method for writing tagged (partitioned and classified) records from a first log stream to multiple recovery streams and discarding same from said first stream at the termination of the unit of recovery in a transaction-oriented system to permit first log stream reuse.
摘要翻译：一种用于将标记（分区和分类）记录从第一日志流写入多个恢复流的方法，并且在面向事务的系统中的恢复单元的终止时将其从所述第一流中丢弃以允许第一对数流重用。

7. 发明授权

US4480304A Method and means for the retention of locks across system, subsystem, and communication failures in a multiprocessing, multiprogramming, shared data environment 失效
标题翻译：在多处理，多编程，共享数据环境中保持系统，子系统和通信故障的锁的方法和方法
公开(公告)号：US4480304A
公开(公告)日：1984-10-30
申请号：US194506
申请日：1980-10-06
申请人： Clarence A. Carr , Robert L. Huddleston , Jimmy P. Strickland
发明人： Clarence A. Carr , Robert L. Huddleston , Jimmy P. Strickland
IPC分类号： G06F11/18 , G06F9/46 , G06F9/52 , G06F11/30 , G06F15/00 , G06F15/16
CPC分类号： G06F9/52
摘要： Method and means for operating a computing system for controlling access to and maintaining the integrity of data resources shared by multiple applications executing on a plurality of central electronic complexes (CEC's) while minimizing communication of sharing control parameters between different electronic complexes. Each complex includes a resource lock manager (IRLM) which maintains the hold and wait locks for applications executing under one or more information management subsystems on the complex and selected wait locks for the other complex. Selective communication of lock request information is controlled by hash tables maintained in synchronization in each IRLM, which denote the interest of each complex in each hash class, or congruence class, of data resources. A first complex already having exclusive use of a congruence class grants locks on data resources which map into the congruence class without communication of the request to the other complex. When such communication is required, and the other complex determines that an inconsistent hold lock already exists for the data resource of the request, the lock request is waited in both IRLM's. When the inconsistant hold lock is subsequently released, the wait lock is deleted from the IRLM of the other complex, and the first complex grants the requested lock.Each IRLM also includes an identified subsystem list (ISL), which is maintained in synchronization and used along with the hash tables and hold/wait locks to retain locks across CEC, subsystem, and communication link failures and to enhance recovery thereafter.
摘要翻译：用于操作计算系统的方法和装置，用于控制对在多个中央电子复合体（CEC）上执行的多个应用程序共享的数据资源的访问和维护，同时最小化不同电子复合体之间共享控制参数的通信。每个复合体包括一个资源锁管理器（IRLM），该资源锁管理器（IRLM）为在另一个复合体的复杂和选择的等待锁上的一个或多个信息管理子系统下执行的应用程序维护保持和等待锁。锁定请求信息的选择性通信由在每个IRLM中同步维护的哈希表控制，这表示每个哈希类中的每个复合体的兴趣或数据资源的一致类。已经独占使用一致性类的第一个复合体对数据资源提供锁定，这些数据资源映射到同余类中，而不将请求传递给另一个复合体。当需要这种通信时，另一个复合体确定对于请求的数据资源已经存在不一致的保持锁定，则在两个IRLM中等待锁定请求。当不一致的保持锁随后被释放时，等待锁将从另一个复合体的IRLM中删除，第一个复合体授予所请求的锁。每个IRLM还包括被识别的子系统列表（ISL），其被保持在同步状态并与散列表和保持/等待锁一起使用以保持CEC，子系统和通信链路故障之间的锁并且以后增强恢复。

8. 发明授权

US4399504A Method and means for the sharing of data resources in a multiprocessing, multiprogramming environment 失效
标题翻译：用于在多处理，多重编程环境中共享数据资源的方法和装置
公开(公告)号：US4399504A
公开(公告)日：1983-08-16
申请号：US194483
申请日：1980-10-06
申请人： Ronald L. Obermarck , Jimmy P. Strickland , Vern L. Watts
发明人： Ronald L. Obermarck , Jimmy P. Strickland , Vern L. Watts
IPC分类号： G06F13/14 , G06F9/46 , G06F9/52 , G06F12/00 , G06F15/16 , G06F15/177
CPC分类号： G06F9/52
摘要： Data resources are shared by applications executing on a plurality of central electronic complexes. Each complex of a pair includes a resource lock manager (IRLM) which maintains the hold and wait locks for applications executing on the complex and selected wait locks for the other complex. Selective communication of lock request information is controlled by hash tables maintained in synchronization in each IRLM, which denote the interest of each complex in each hash class of data resources.
摘要翻译：数据资源由在多个中央电子综合体上执行的应用共享。一对中的每一个复合体都包含一个资源锁管理器（IRLM），该管理器维护对另一个复合体的复杂和选择的等待锁执行的应用程序的保持和等待锁。锁定请求信息的选择性通信由在每个IRLM中同步维护的哈希表控制，这表示每个哈希类数据资源中每个复合体的兴趣。

9. 发明授权

US5355477A Method for updating a block using record-level locks by committing the update if the block has not been updated by another process otherwise spinning 失效
标题翻译：如果块没有被另一个进程更新，则通过提交更新来使用记录级锁来更新块的方法，否则旋转
公开(公告)号：US5355477A
公开(公告)日：1994-10-11
申请号：US812677
申请日：1991-12-23
申请人： Jimmy P. Strickland , Kenneth M. Kapulka
发明人： Jimmy P. Strickland , Kenneth M. Kapulka
IPC分类号： G06F12/00 , G06F17/30 , G06F12/08
CPC分类号： G06F9/526 , Y10S707/99938 , Y10S707/99939
摘要： A Virtual Storage Access Management (VSAM) technique for maintaining data integrity of the record-level shared data in a multiprocessor system environment without the concurrency loss associated with locking at the data Control Interval (CI) or block level. Two or more concurrent processes can update different records within the same VSAM data CI using only a record-level lock. This feature relies upon multiple private data CI copies, Shared External Storage (SES), cache cross-invalidation, and a conditional writing operation. A first process updates a private copy of a data CI containing the target record from SES, logs the changes, and writes the changed data CI back to the SES conditioned upon no update having been made to the same block data CI by a second process in the interim. If a second process has indeed updated the same data CI in the interim, the first process recycles by obtaining the most recent data CI copy from SES, combining it with the first process update log entries and attempting to again conditionally write the modified data CI to SES. This process of logging updates and spinning on an intervening update by another process preserves serialization by record-level locking alone.
摘要翻译：一种用于在多处理器系统环境中维护记录级共享数据的数据完整性的虚拟存储访问管理（VSAM），而不会与数据控制间隔（CI）或块级锁定相关联的并发丢失。两个或更多个并发进程可以使用仅记录级别锁来更新同一VSAM数据CI中的不同记录。此功能依赖于多个私有数据CI拷贝，共享外部存储（SES），缓存交叉无效和条件写入操作。第一进程更新来自SES的包含目标记录的数据CI的私有副本，记录更改，并且将更改后的数据CI写回到SES，条件是在没有通过第二进程对相同块数据CI进行更新的条件下临时如果第二进程确实在更新相同的数据CI中，则第一进程通过从SES获得最新的数据CI拷贝进行回收，将其与第一进程更新日志条目组合，并尝试再次有条件地将修改的数据CI写入 SES。这种通过另一进程进行的中间更新记录更新和旋转的过程通过记录级锁定单独保留序列化。

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