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1. 发明授权

US4837680A Controlling asynchronously operating peripherals 失效
标题翻译：控制异步运行的外设
公开(公告)号：US4837680A
公开(公告)日：1989-06-06
申请号：US90722
申请日：1987-08-28
申请人： Robert N. Crockett , Robert F. Kern , Arnold G. Miller , Richard E. Norris , Michael W. Pousson, Jr. , Robert E. Wagner
发明人： Robert N. Crockett , Robert F. Kern , Arnold G. Miller , Richard E. Norris , Michael W. Pousson, Jr. , Robert E. Wagner
IPC分类号： G06F13/14 , G06F11/20 , G06F13/10 , G06F13/12 , G06F15/16 , G06F15/177
CPC分类号： G06F11/201 , G06F13/126
摘要： A plurality of host processors share access to a peripheral data storage subsystem and each have program means for controlling asynchronous operations of the subsystem. Control blocks in each of the host processors are addressably linked together for enabling inferred access to a unit control block (UCB) for any of a plurality of peripheral devices in the subsystem. The subsystem selectively groups some of the devices such that only devices designated as primary devices are addressably accessible by host processor application programs. Other devices in the respective groups are secondary devices and are accessed by the subsystem whenever the primary devices in the same group cannot perform a host processor commanded operation. Means are provided for identifying the secondary devices to all of the host processors.

2. 发明授权

US5619644A Software directed microcode state save for distributed storage controller 失效
标题翻译：针对分布式存储控制器的软件定向微码状态保存
公开(公告)号：US5619644A
公开(公告)日：1997-04-08
申请号：US529901
申请日：1995-09-18
申请人： Robert N. Crockett , Ronald M. Kern , William F. Micka
发明人： Robert N. Crockett , Ronald M. Kern , William F. Micka
IPC分类号： G06F12/16 , G06F11/07 , G06F12/00 , G06F11/00
CPC分类号： G06F11/0778 , G06F11/0727
摘要： A storage system improves error debugging by directing distributed system components associated with an error condition to temporarily suspend data processing for collecting failure information. The collected failure information is correlated for later analysis according to an issued diagnostic state save channel command word (CCW) that is triggered by the detection of said error condition. The storage system includes a host processor running applications generating record updates. A data mover in the host processor issues the diagnostic state save CCW upon receiving an error code from one of the system components. The failure information includes software, hardware and microcode control structures of the distributed system components.
摘要翻译：存储系统通过引导与错误条件相关联的分布式系统组件临时挂起用于收集故障信息的数据处理来改进错误调试。所收集的故障信息被相关联以根据由所述错误条件的检测触发的发出的诊断状态保存通道命令字（CCW）进行后续分析。存储系统包括运行应用程序生成记录更新的主机处理器。主机处理器中的数据移动器在从其中一个系统组件接收到错误代码时发出诊断状态保存CCW。故障信息包括分布式系统组件的软件，硬件和微代码控制结构。

3. 发明授权

US5504861A Remote data duplexing 失效
标题翻译：远程数据双工
公开(公告)号：US5504861A
公开(公告)日：1996-04-02
申请号：US199449
申请日：1994-02-22
申请人： Robert N. Crockett , Debra L. Jaworski , Ronald M. Kern
发明人： Robert N. Crockett , Debra L. Jaworski , Ronald M. Kern
IPC分类号： G06F11/14 , G06F11/20 , G06F11/34
CPC分类号： G06F11/2074 , G06F11/1435 , G06F11/2064
摘要： A remote data shadowing system provides storage based, real time disaster recovery capability. Record updates at a primary site cause write I/O operations in a storage subsystem therein. The write I/O operations are time stamped and the time, sequence, and physical locations of the record updates are collected in a primary data mover. The primary data mover groups sets of the record updates and associated control information based upon a predetermined time interval, the primary data mover appending a prefix header to the record updates thereby forming self describing record sets. The self describing record sets are transmitted to a remote secondary site wherein consistency groups are formed such that the record updates are ordered so that the record updates can be shadowed in an order consistent with the order the record updates cause write I/O operations at the primary site. The secondary site optimizes the record updates of each consistency group such that record updates to a same target track are included in a single I/O CCW chain. Additionally, the record updates are written according to full consistency group recovery rules such that should the primary site be unavailable, the secondary site can recover a consistency group.
摘要翻译：远程数据阴影系统提供基于存储的实时灾难恢复功能。在主站点记录更新会导致其中的存储子系统中的写入I / O操作。写I / O操作是时间戳的，并且记录更新的时间，顺序和物理位置被收集在主数据移动器中。主数据移动器基于预定时间间隔对记录更新和相关联的控制信息进行组合，将主数据移动器附加到记录更新的前缀头，从而形成自描述记录集。自描述记录集被发送到远程辅助站点，其中形成一致性组，使得记录更新被排序，使得记录更新可以按照与记录更新引起写入I / O操作的顺序一致的顺序被遮蔽主要站点。次要站点优化每个一致性组的记录更新，使得对同一目标轨道的记录更新包含在单个I / O CCW链中。此外，记录更新是根据完整的一致性组恢复规则编写的，以便主站点不可用，辅助站点可以恢复一致性组。

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