公开(公告)号：US20080155224A1

公开(公告)日：2008-06-26

申请号：US11643264

申请日：2006-12-21

申请人： Carl R. Crandall ,  Michael J. Heideman ,  Michael C. Otto ,  John T. Rusterholz

发明人： Carl R. Crandall ,  Michael J. Heideman ,  Michael C. Otto ,  John T. Rusterholz

IPC分类号： G06F12/00

CPC分类号： G06F12/145 ,  G06F12/10

摘要： A legacy operating system (OS) of a type generally associated with an enterprise-level, legacy data processing platform such as a mainframe is instead provided on a commodity data processing platform such as a personal computer. The legacy OS is adapted to communicate with legacy IOP devices of the type generally associated with the legacy platform to provide data protection mechanisms for legacy data. To initiate an I/O operation, a commodity OS executing on the commodity platform allocates a memory buffer and provides the virtual buffer address to the legacy OS. The legacy OS uses this address to construct a description of an I/O operation to be performed using the buffer. The description is then translated from one referencing a first memory page size in virtual address space into a description referencing a different page size in physical address space so that legacy IOP can complete the operation.

摘要翻译： 通常与诸如大型机的企业级传统数据处理平台相关联的类型的传统操作系统（OS）被替代地提供在诸如个人计算机的商品数据处理平台上。 遗留操作系统适于与通常与传统平台相关联的类型的传统IOP设备进行通信，以提供遗留数据的数据保护机制。 为了启动I / O操作，在商品平台上执行的商品操作系统分配存储器缓冲器并且向传统OS提供虚拟缓冲器地址。 传统操作系统使用该地址来构造要使用缓冲区执行的I / O操作的描述。 然后，将描述从在虚拟地址空间中引用第一存储器页大小的描述转换为在物理地址空间中引用不同页大小的描述，使得传统IOP可以完成该操作。

公开(公告)号：US07000046B1

公开(公告)日：2006-02-14

申请号：US10346459

申请日：2003-01-17

申请人： Thomas P. Cooper ,  Carl R. Crandall ,  Thomas N. DeVries ,  Michael J. Heideman ,  Craig B. Johnson ,  David A. Novak ,  Michael C. Otto ,  Haeng D. Park

发明人： Thomas P. Cooper ,  Carl R. Crandall ,  Thomas N. DeVries ,  Michael J. Heideman ,  Craig B. Johnson ,  David A. Novak ,  Michael C. Otto ,  Haeng D. Park

IPC分类号： G06F13/00 ,  G06F15/16

CPC分类号： G06F11/2046 ,  G06F11/2007 ,  G06F11/2023 ,  G06F11/2025 ,  G06F11/2038 ,  G06F11/2041 ,  G06F11/2087

摘要： An apparatus for and method of implementing a cluster lock processing system having a relatively large number of commodity cluster instruction processors which are managed by a highly scalable, off the shelf communication processor. Because the commodity processors have virtually no system viability features such as memory protection, failure recovery, etc., the communication processor assumes the responsibility for providing these functions. The low cost of the commodity cluster instruction processors makes the system almost linearly scalable. Furthermore, having a fully scalable communication processor ensures a completely scalable system. The cluster/locking, caching, and mass storage accessing functions are fully integrated into a single hardware platform.

摘要翻译： 一种用于实现具有相对大量的商品集群指令处理器的集群锁处理系统的装置和方法，所述商品集群指令处理器由高度可扩展的现成的通信处理器管理。 由于商品处理器几乎没有诸如存储器保护，故障恢复等的系统可行性特征，所以通信处理器承担提供这些功能的责任。 商品集群指令处理器的低成本使系统几乎线性可扩展。 此外，拥有完全可扩展的通信处理器可确保完全可扩展的系统。 集群/锁定，缓存和大容量存储访问功能完全集成到单个硬件平台中。

公开(公告)号：US06789133B1

公开(公告)日：2004-09-07

申请号：US10034701

申请日：2001-12-28

申请人： Carl R. Crandall ,  Thomas N. DeVries ,  Craig B. Johnson ,  Joseph E. Kessler ,  Michael C. Otto ,  Haeng D. Park ,  Michael J. Heideman

发明人： Carl R. Crandall ,  Thomas N. DeVries ,  Craig B. Johnson ,  Joseph E. Kessler ,  Michael C. Otto ,  Haeng D. Park ,  Michael J. Heideman

IPC分类号： G06F300

CPC分类号： G06F3/0661 ,  G06F3/0607 ,  G06F3/0685

摘要： A system and method for processing I/O requests in a computing system. I/O packets are created via an operating system associated with the computing system, where the I/O packets include I/O transaction information. The I/O packets are made accessible to an I/O system. A command for a channel type connecting a target I/O component to the I/O system is constructed, where this command construction is based on the I/O transaction information provided in the I/O packet, and based on physical aspects of the target I/O component and channel type provided independently of the I/O packet. The constructed command is issued to the target I/O component in accordance with the channel type.

摘要翻译： 一种用于在计算系统中处理I / O请求的系统和方法。 通过与计算系统相关联的操作系统创建I / O分组，其中I / O分组包括I / O交易信息。 I / O数据包可由I / O系统访问。 构建将目标I / O组件连接到I / O系统的通道类型的命令，其中该命令构造基于I / O分组中提供的I / O事务信息，并且基于物理方面 目标I / O组件和通道类型独立于I / O数据包提供。 构造的命令根据通道类型发送到目标I / O组件。

公开(公告)号：US07155638B1

公开(公告)日：2006-12-26

申请号：US10346933

申请日：2003-01-17

申请人： Michael J. Heideman ,  Dennis R. Konrad ,  David A. Novak ,  Carl R. Crandall

发明人： Michael J. Heideman ,  Dennis R. Konrad ,  David A. Novak ,  Carl R. Crandall

IPC分类号： G06F11/00

CPC分类号： G06F11/2028 ,  G06F9/5027 ,  G06F9/5061 ,  G06F11/2005 ,  G06F11/2007 ,  G06F11/2038 ,  G06F11/2043 ,  G06F11/2097

摘要： An apparatus for and method of enhancing reliability within a cluster lock processing system having a relatively large number of commodity cluster instruction processors which are managed by a cluster lock manager. Because the commodity processors have virtually no system viability features such as memory protection, failure recovery, etc., the cluster/lock processors assume the responsibility for providing these functions. The low cost of the commodity cluster instruction processors makes the system almost linearly scalable. The cluster/locking, caching, and mass storage accessing functions are fully integrated into a single hardware platform which performs the role of the master. Upon failure of this hardware platform, a second redundant hardware platform converts from slave to master role. The logic for the failure detection and role swapping is placed within software, which can run as an application under a commonly available operating system. Furthermore, the recovery is completely accomplished without assistance of the Host computer(s) or ultimate user(s) coupled via the Host computer(s).

摘要翻译： 一种用于提高具有由群集锁管理器管理的相对较多数量的商品群集指令处理器的群集锁处理系统内的可靠性的装置和方法。 由于商品处理器几乎没有系统可行性功能，如内存保护，故障恢复等，所以集群/锁定处理器承担提供这些功能的责任。 商品集群指令处理器的低成本使系统几乎线性可扩展。 集群/锁定，缓存和大容量存储访问功能完全集成到执行主控角色的单个硬件平台中。 在此硬件平台发生故障后，第二个冗余硬件平台将从从机转换为主机角色。 故障检测和角色交换的逻辑放在软件中，可以作为常用可用操作系统下的应用程序运行。 此外，在没有主计算机或通过主机计算机耦合的最终用户的协助下，恢复完全完成。

公开(公告)号：US20170364545A1

公开(公告)日：2017-12-21

申请号：US15187973

申请日：2016-06-21

申请人： MICHAEL C. Otto ,  Carl R. Crandall ,  Forest F. Crocker ,  Lnda J. Brock ,  Douglas A. Fuller ,  Michael J. Rieschl

发明人： MICHAEL C. Otto ,  Carl R. Crandall ,  Forest F. Crocker ,  Lnda J. Brock ,  Douglas A. Fuller ,  Michael J. Rieschl

IPC分类号： G06F17/30 ,  G06F9/455

摘要： A method includes determining, by a processor, whether a program check condition exists. The method further includes determining, by the processor, whether a lock descriptor of a lock in a file lock table satisfies an unlocking condition. The method further includes releasing, by the processor, the lock by setting the lock descriptor's host identifier as zero. The method further includes determining, by the processor, whether any lock in the file lock table satisfies a lock conflict condition. The method further includes determining, by the processor, whether the file lock table includes any lock descriptor that satisfies a locking condition. The method further includes creating, by the processor, a new lock using the lock descriptor that satisfies the locking condition.

公开(公告)号：US07177791B1

公开(公告)日：2007-02-13

申请号：US10729537

申请日：2003-12-05

申请人： Carl R. Crandall ,  Craig B. Johnson ,  Mitch M. Maurer ,  Yonghe Liu

发明人： Carl R. Crandall ,  Craig B. Johnson ,  Mitch M. Maurer ,  Yonghe Liu

IPC分类号： G06F9/455

CPC分类号： G06F9/45537 ,  G06F11/3636 ,  G06F11/3652

摘要： The various embodiments of the invention relate to analyzing operations of an emulated input-output processor. Instructions native to the first type of instruction processor are emulated on a second-type instruction processor. The instruction processor emulator executes an operating system that includes instructions native to the first type of instruction processor. The operating system includes instructions that write input/output (IO) requests to the memory arrangement in response to IO functions invoked by a program. An IOP emulator that is executable on the second-type processor emulates IOP processing of IO requests from the memory arrangement. The IOP emulator maintains in the memory arrangement a first set of data structures used in processing the IO requests. State data currently contained in the data structures is stored on a retentive storage device, and in response to user input controls, the state data is read from retentive storage and displayed.

摘要翻译： 本发明的各种实施例涉及分析仿真的输入 - 输出处理器的操作。 对第一类指令处理器本地的指令在第二类指令处理器上被仿真。 指令处理器模拟器执行包括本地对第一类型的指令处理器的指令的操作系统。 操作系统包括响应于由程序调用的IO功能将输入/输出（IO）请求写入存储器装置的指令。 可在第二类型处理器上执行的IOP仿真器模拟来自存储器装置的IO请求的IOP处理。 IOP仿真器在存储器布置中维护用于处理IO请求的第一组数据结构。 当前包含在数据结构中的状态数据存储在保持性存储设备上，并且响应于用户输入控件，从保持性存储读取状态数据并显示。

公开(公告)号：US06971046B1

公开(公告)日：2005-11-29

申请号：US10330716

申请日：2002-12-27

申请人： Craig B. Johnson ,  Carl R. Crandall ,  Haeng D. Park

发明人： Craig B. Johnson ,  Carl R. Crandall ,  Haeng D. Park

IPC分类号： G06F11/00

CPC分类号： G06F11/273

摘要： A system and method for testing I/O components without requiring initiation of the test I/O requests from the operating system via the instruction stream. An I/O system facilitates I/O operations between a processing system and I/O devices during normal I/O processing. An exerciser initiation queue is established, which corresponds to an operating initiation queue used during normal I/O processing. The I/O system is configured to monitor for test I/O requests on the exerciser initiation queue in lieu of monitoring for standard I/O requests on the operating initiation queue. A testing module enters the test I/O requests on the exerciser initiation queue in a format analogous to standard I/O requests entered on the operating initiation queue during normal I/O processing. The test I/O requests on the exerciser initiation queue are processed via the I/O system. Upon I/O completion, status may be returned to the testing module for processing of test results.

摘要翻译： 用于测试I / O组件的系统和方法，而不需要通过指令流启动来自操作系统的测试I / O请求。 I / O系统便于在正常I / O处理过程中处理系统与I / O设备之间的I / O操作。 建立了一个训练器启动队列，这对应于在正常I / O处理期间使用的操作启动队列。 I / O系统配置为监视运行启动队列上的测试I / O请求，代替监视操作启动队列上的标准I / O请求。 测试模块以类似于在正常I / O处理期间在操作启动队列上输入的标准I / O请求的格式在训练器启动队列上输入测试I / O请求。 运动员启动队列上的测试I / O请求将通过I / O系统进行处理。 I / O完成后，可以将状态返回给测试模块进行测试结果的处理。

公开(公告)号：US06799156B1

公开(公告)日：2004-09-28

申请号：US10133261

申请日：2002-04-26

申请人： Michael J. Rieschl ,  Carl R. Crandall ,  Thomas N. Devries ,  Haeng D. Park

发明人： Michael J. Rieschl ,  Carl R. Crandall ,  Thomas N. Devries ,  Haeng D. Park

IPC分类号： G06F9455

CPC分类号： G06F3/0664 ,  G06F3/0607 ,  G06F3/0661 ,  G06F3/0682

摘要： A method of and apparatus for efficiently and effectively coupling a newly designed peripheral device to a legacy data processing system. The approach utilizes emulation of a SCSI tape device by a SCSI DVD device. Through device emulation, system-wide modifications are minimized.

摘要翻译： 一种用于有效且有效地将新设计的外围设备耦合到传统数据处理系统的方法和设备。 该方法利用SCSI DVD设备对SCSI磁带设备的仿真。 通过器件仿真，系​​统范围的修改被最小化。

公开(公告)号：US20210117358A1

公开(公告)日：2021-04-22

申请号：US16803396

申请日：2020-02-27

申请人： Brian J. LePage ,  Carl R. Crandall

发明人： Brian J. LePage ,  Carl R. Crandall

IPC分类号： G06F13/40 ,  G06F13/16 ,  G06F9/455 ,  H04L29/06

摘要： A computing system includes a computer executing an emulated operating system, the emulated operating system including a multichannel control unit; a plurality of virtual drives accessible to the emulated operating system; and a communication channel, the communication channel connecting the multichannel control unit and the virtual drives through one or more virtual channels. The multichannel control unit sends a first data access request to a virtual drive through the first virtual channel of the communication channel, the multichannel control unit sends a second data access request to a virtual drive through the second virtual channel of the communication channel.

公开(公告)号：US20210117357A1

公开(公告)日：2021-04-22

申请号：US16658269

申请日：2019-10-21

申请人： Brian J. LePage ,  Carl R. Crandall

发明人： Brian J. LePage ,  Carl R. Crandall

IPC分类号： G06F13/40 ,  G06F13/16 ,  G06F9/455 ,  H04L29/06

摘要： A computing system includes a computer executing an emulated operating system, the emulated operating system including a multichannel control unit; a plurality of virtual drives accessible to the emulated operating system; and a communication channel, the communication channel connecting the multichannel control unit and the virtual drives through one or more virtual channels. The multichannel control unit sends a first data access request to a virtual drive through the first virtual channel of the communication channel, the multichannel control unit sends a second data access request to a virtual drive through the second virtual channel of the communication channel.