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1. 发明授权

US06185638B2 Method and system for dynamically assigning addresses to an input/output device 有权
标题翻译：用于向输入/输出设备动态分配地址的方法和系统
公开(公告)号：US06185638B2
公开(公告)日：2001-02-06
申请号：US09167782
申请日：1998-10-07
申请人： Brent Cameron Beardsley , Allan Samuel Meritt , Michael Aloysius Paulsen , Harry Morris Yudenfriend
发明人： Brent Cameron Beardsley , Allan Samuel Meritt , Michael Aloysius Paulsen , Harry Morris Yudenfriend
IPC分类号： G06F1300
CPC分类号： G06F13/387
摘要： Disclosed is a system for dynamically assigning alias addresses to base addresses referencing an I/O device, such as a direct access storage device (DASD). In the system, at least one base control block indicates a base address and a plurality of alias control blocks indicate a plurality of alias addresses. Each control block is associated with an address for addressing an I/O device. A processing unit, such as a host computer system, processes at least one alias control block associated with the I/O device and determines a base control block associated with the I/O device with which the alias control blocks are associated. The processing unit then binds at least one alias control block to the determined base control block. The bound base and alias control blocks provide different addresses to address the same I/O device. Further, the bound base and alias addresses address the same I/O device for subsequent I/O operations until the processing unit detects a reassignment of the association of base and alias addresses.
摘要翻译：公开了一种用于将引用诸如直接存取存储设备（DASD）的I / O设备的基地址的别名地址动态分配的系统。在系统中，至少一个基本控制块指示基地址，并且多个别名控制块指示多个别名地址。每个控制块与寻址I / O设备的地址相关联。诸如主计算机系统的处理单元处理与I / O设备相关联的至少一个别名控制块，并且确定与该别名控制块相关联的I / O设备相关联的基本控制块。处理单元然后将至少一个别名控制块绑定到所确定的基本控制块。绑定的基址和别名控制块提供不同的地址来寻址相同的I / O设备。此外，绑定的基址和别名地址对于后续I / O操作寻址相同的I / O设备，直到处理单元检测到基地址和别名地址的关联的重新分配。

2. 发明授权

US6167459A System for reassigning alias addresses to an input/output device 有权
标题翻译：用于将别名地址重新分配给输入/输出设备的系统
公开(公告)号：US6167459A
公开(公告)日：2000-12-26
申请号：US167603
申请日：1998-10-07
申请人： Brent Cameron Beardsley , Allan Samuel Meritt , Michael Aloysius Paulsen , Harry Morris Yudenfriend
发明人： Brent Cameron Beardsley , Allan Samuel Meritt , Michael Aloysius Paulsen , Harry Morris Yudenfriend
IPC分类号： G06F13/10 , G06F13/00
CPC分类号： G06F13/102
摘要： Disclosed is a system for reassigning addresses. A first processing unit, such as a storage controller, provides at least two base addresses for addressing devices, such as volumes of a direct access storage device (DASD) and a plurality of alias addresses. An alias address associated with a base address provides an address for addressing the device addressed by the base address. The first processing unit processes a command transmitted from a second processing unit, such as a host system that accesses the DASD through the storage controller, to reassign an alias address from a first base address to a second base address. The first base address addresses a first device and the second base address addresses a second device. The first processing unit then indicates that the alias address to reassign is not associated with the first base address and is associated with the second base address. The second device addressed by the second base addresses is capable of being addressed by the reassigned alias address. The first processing unit signals the second processing unit after the first processing unit indicates that the alias address was reassigned from the first base address to the second base address.
摘要翻译：公开了一种用于重新分配地址的系统。诸如存储控制器的第一处理单元为诸如直接存取存储设备（DASD）的卷和多个别名地址的寻址设备提供至少两个基地址。与基地址相关联的别名地址提供用于寻址由基址寻址的设备的地址。第一处理单元处理从诸如通过存储控制器访问DASD的主机系统的第二处理单元发送的命令，以将别名地址从第一基地址重新分配到第二基地址。第一基地址是第一设备，第二基地址是第二设备。然后，第一处理单元指示重新分配的别名地址不与第一基地址相关联，并且与第二基地址相关联。由第二基地址寻址的第二设备能够被重新分配的别名地址寻址。第一处理单元在第一处理单元指示将别名地址从第一基地址重新分配到第二基地址之后向第二处理单元发信号。

3. 发明授权

US06170023A System for accessing an input/output device using multiple addresses 有权
标题翻译：使用多个地址访问输入/输出设备的系统
公开(公告)号：US06170023A
公开(公告)日：2001-01-02
申请号：US09168017
申请日：1998-10-07
申请人： Brent Cameron Beardsley , James Lincoln Iskiyan , James McIlvain , Philip Ray Mills , Michael Aloysius Paulsen , William G. Thompson , Harry Morris Yudenfriend
发明人： Brent Cameron Beardsley , James Lincoln Iskiyan , James McIlvain , Philip Ray Mills , Michael Aloysius Paulsen , William G. Thompson , Harry Morris Yudenfriend
IPC分类号： G06F1300
CPC分类号： G06F12/06
摘要： Disclosed is a system for performing input/output (I/O) operations with a processing unit. A processing unit, such as a host system, determines a base and associated alias addresses to address an I/O device, such as a direct access storage device (DASD). The processing unit associates the determined base and alias addresses to the I/O device. The association of base and alias addresses is maintained constant for subsequent I/O operations until the processing unit detects a reassignment of the association of base and alias addresses. The processing unit then determines an available base or alias address to use with an I/O operation and may concurrently execute multiple I/O operations against the I/O device using the base and alias addresses.
摘要翻译：公开了一种用于利用处理单元执行输入/输出（I / O）操作的系统。诸如主机系统的处理单元确定基地址和关联的别名地址以寻址诸如直接访问存储设备（DASD）的I / O设备。处理单元将确定的基地址和别名地址与I / O设备相关联。基址和别名地址的关联在后续I / O操作中保持不变，直到处理单元检测到基地址和别名地址的关联的重新分配。处理单元然后确定与I / O操作一起使用的可用基地址或别名地址，并且可以使用基地址和别名地址同时对I / O设备执行多个I / O操作。

4. 发明授权

US06202095B1 Defining characteristics between processing systems 失效
标题翻译：定义处理系统之间的特征
公开(公告)号：US06202095B1
公开(公告)日：2001-03-13
申请号：US09167605
申请日：1998-10-07
申请人： Brent Cameron Beardsley , John Thomas Flynn , Michael Aloysius Paulsen , Harry Morris Yudenfriend
发明人： Brent Cameron Beardsley , John Thomas Flynn , Michael Aloysius Paulsen , Harry Morris Yudenfriend
IPC分类号： G06F1516
CPC分类号： G06F9/5044
摘要： Disclosed is a system for indicating system capabilities. A first processing unit, such as a control unit, receives a command from a second processing unit, such as a host system, indicating capabilities of the first processing unit. The first processing unit determines common capabilities indicated in the command that are also available in the first processing unit and indicates in a data structure, such as a bitmap data structure, the common capabilities. The first processing unit then signals the second processing unit of the change in system status.
摘要翻译：公开了一种用于指示系统能力的系统。诸如控制单元的第一处理单元从指示第一处理单元的能力的诸如主机系统的第二处理单元接收命令。第一处理单元确定在命令中指示的在第一处理单元中也可用的公共功能，并且在诸如位图数据结构的数据结构中指示共同的能力。然后，第一处理单元向第二处理单元通知系统状态的改变。

5. 发明授权

US06748557B1 System, method, and program for determining the availability of interfaces to a control unit 有权
标题翻译：用于确定到控制单元的接口可用性的系统，方法和程序
公开(公告)号：US06748557B1
公开(公告)日：2004-06-08
申请号：US09671216
申请日：2000-09-27
申请人： Brent Cameron Beardsley , William J. Rooney , Harry Morris Yudenfriend
发明人： Brent Cameron Beardsley , William J. Rooney , Harry Morris Yudenfriend
IPC分类号： G06F1100
CPC分类号： G06F11/008 , G06F11/1096
摘要： Disclosed is a system, method, and program for analyzing proposed interface ports to a device. For each proposed interface port, a determination is made of a number of single points of failure for the proposed interface port in common with interface ports currently used to access the device. For each proposed interface port, a determination is made of a relative availability rating based on the number of single points of failure for each proposed interface port.
摘要翻译：公开了一种用于分析针对设备的所提出的接口端口的系统，方法和程序。对于每个提出的接口端口，确定与目前用于访问设备的接口端口相同的所提出的接口端口的单个故障点的数量。对于每个提出的接口端口，基于每个建议的接口端口的单个故障点的数量确定相对可用性等级。

6. 发明授权

US06745347B1 System, method and program for determining the availability of interfaces to a device from information provided by the device 失效
标题翻译：用于根据由设备提供的信息确定与设备的接口的可用性的系统，方法和程序
公开(公告)号：US06745347B1
公开(公告)日：2004-06-01
申请号：US09671416
申请日：2000-09-27
申请人： Brent Cameron Beardsley , William J. Rooney , Harry Morris Yudenfriend
发明人： Brent Cameron Beardsley , William J. Rooney , Harry Morris Yudenfriend
IPC分类号： G06F1100
CPC分类号： G06F11/008 , G06F11/201
摘要： Disclosed is a system, method, and program for analyzing proposed interface ports to a device. Failure boundary data is read from the device indicating at least one failure boundary of a proposed interface to the device and a mask is accessed from the device. The accessed mask is applied to the failure boundary data for the proposed interface and existing interfaces to determine at least one failure boundary for the proposed interface and existing interfaces. A determination is made of a number of single points of failure for the proposed interface port from the determined failure boundaries the proposed interface has in common with interface ports currently used to access the device. A further determination is made of a relative availability rating based on the number of single points of failure for each proposed interface port.
摘要翻译：公开了一种用于分析针对设备的所提出的接口端口的系统，方法和程序。从设备读取故障边界数据，指示所提出的与设备的接口的至少一个故障边界，并且从设备访问掩码。所访问的掩码应用于所提出的接口和现有接口的故障边界数据，以确定所提出的接口和现有接口的至少一个故障边界。从所确定的故障边界确定所提出的接口端口的多个单点故障，所提出的接口与当前用于接入设备的接口端口具有共同之处。基于每个提出的接口端口的单个故障点的数量，进一步确定相对可用性等级。

7. 发明授权

US5640603A Logical path scheduler for disconnecting currently connected paths to enable logical paths awaiting connection to connect based on path control tables thereof 失效
标题翻译：用于断开当前连接的路径的逻辑路径调度器，以使得等待连接的逻辑路径基于其路径控制表来连接
公开(公告)号：US5640603A
公开(公告)日：1997-06-17
申请号：US188994
申请日：1994-01-28
申请人： Allan Samuel Meritt , Andrea Lynn Sheber , Harry Morris Yudenfriend
发明人： Allan Samuel Meritt , Andrea Lynn Sheber , Harry Morris Yudenfriend
IPC分类号： G06F13/14 , G06F13/40 , G06F15/16 , G06F15/177 , H01J3/00
CPC分类号： G06F13/4022
摘要： A dynamic switch connects a control unit to a plurality of channels on one or more processors, each processor controlled by an operating system. A logical path scheduler (LPS) within a master operating system in one of the processors contains a path control table which contains an entry for each control unit, system, and logical path combination--each entry indicating current path status (connected or disconnected), and time in that status. I/O requests within the systems for which no path currently exists are queued, and the LPS initiates connections and disconnections for the paths to equitably allocate the maximum number of simultaneous path connections allowed for the control unit, among more than that maximum number of contending channels.
摘要翻译：动态开关将控制单元连接到一个或多个处理器上的多个通道，每个处理器由操作系统控制。在一个处理器中的主操作系统内的逻辑路径调度器（LPS）包含路径控制表，其包含用于每个控制单元，系统和逻辑路径组合的条目 - 每个条目指示当前路径状态（连接或断开），和时间在那个状态。目前不存在任何路径的系统内的I / O请求排队，并且LPS启动路径的连接和断开，以公平地分配控制单元允许的最大同时路径连接数，超过最大数量的竞争频道

8. 发明授权

US06304980B1 Peer-to-peer backup system with failure-triggered device switching honoring reservation of primary device 有权
标题翻译：具有故障触发设备切换的对等备份系统保证主设备的预留
公开(公告)号：US06304980B1
公开(公告)日：2001-10-16
申请号：US09234806
申请日：1999-01-19
申请人： Brent Cameron Beardsley , James Lincoln Iskiyan , William Frank Micka , Harry Morris Yudenfriend
发明人： Brent Cameron Beardsley , James Lincoln Iskiyan , William Frank Micka , Harry Morris Yudenfriend
IPC分类号： G06F1100
CPC分类号： G06F11/2064 , G06F11/2071 , G06F11/2094 , G06F11/2097 , Y10S707/99953 , Y10S707/99955
摘要： A peer-to-peer backup storage system automatically switches from a primary storage site to a mirrored backup site in response to a primary site failure, where the secondary site then honors any existing host initiated reservation of primary storage. Each site includes a storage controller and storage, where the primary site receives and stores data and forwards the received data to the secondary site for storage to mirror contents of primary storage. The primary and secondary sites are coupled to one or more hosts. Whenever the primary controller receives a reserve request from a host, it reserves the primary storage (or a subpart thereof) for the exclusive use of the reserve-initiating host. This may involve, for example, the primary controller storing a path group ID that identifies the reserving host. The primary controller also notifies the secondary controller of the reservation, e.g., sending the path group ID involved in the reservation operation to the secondary site. Responsive to a primary site failure, the system performs “switch” operation where the system stops forwarding data from the primary site to the secondary site. Furthermore, the secondary site is operated in substitution for the primary site, to receive and store data from the hosts. Importantly, the secondary site honors the existing reservation of the primary storage by reserving the secondary storage to the first reserve-initiating host.
摘要翻译：点对点备份存储系统会自动从主存储站点切换到镜像备份站点，以响应主站点故障，其中辅助站点然后对任何现有主机启动的主存储预留进行授权。每个站点都包括一个存储控制器和存储，其中主站点接收并存储数据，并将接收到的数据转发到辅助站点以存储以镜像主存储器的内容。主站点和辅站点耦合到一个或多个主机。每当主控制器从主机接收到保留请求时，它将保留主存储器（或其子部分），用于备用启动主机的独占使用。这可能涉及例如主控制器存储标识保留主机的路径组ID。主控制器还向辅助控制器通知预约，例如将预约操作中涉及的路径组ID发送到辅助站点。响应于主站点故障，系统执行“切换”操作，系统停止将数据从主站点转发到辅助站点。此外，辅助站点的操作代替主站点，从主机接收和存储数据。重要的是，辅助站点通过将辅助存储预留到第一储备发起主机来表现主存储的现有预留。

9. 发明授权

US06253260B1 Input/output data access request with assigned priority handling 有权
标题翻译：具有分配优先级处理的输入/输出数据访问请求
公开(公告)号：US06253260B1
公开(公告)日：2001-06-26
申请号：US09176632
申请日：1998-10-22
申请人： Brent Cameron Beardsley , James Lincoln Iskiyan , Harry Morris Yudenfriend
发明人： Brent Cameron Beardsley , James Lincoln Iskiyan , Harry Morris Yudenfriend
IPC分类号： G06F300
CPC分类号： G06F3/061 , G06F3/0659 , G06F3/0689
摘要： Disclosed is a system and method for processing a data access request (DAR). A processing unit, such as a storage controller, receives a DAR, indicating data to return on a channel, such as a channel connecting to a host system, and priority information for the received DAR. The processing unit retrieves the requested data for the received DAR from a memory area, such as a cache or direct access storage device (DASD), and determines whether there is a queue of data entries indicating retrieved data for DARs to transfer on the channel. The queued DARs include priority information. The processing unit processes at least one data entry in the queue, the priority information for the data entry, and the priority information for the received DAR to determine a position in the queue for the received DAR. The processing unit then indicates that the received DAR is at the determined position in the queue and processes the queue to select retrieved data to transfer on the channel to the host system.
摘要翻译：公开了一种用于处理数据访问请求（DAR）的系统和方法。诸如存储控制器的处理单元接收指示在诸如连接到主机系统的信道的信道上返回的数据的DAR以及所接收的DAR的优先级信息。处理单元从诸如高速缓存或直接访问存储设备（DASD）的存储区域检索所接收的DAR的请求数据，并且确定是否存在指示用于在信道上传送的DAR的检索数据的数据条目队列。排队的DAR包括优先级信息。处理单元处理队列中的至少一个数据条目，数据输入的优先级信息和所接收的DAR的优先级信息，以确定所接收的DAR的队列中的位置。处理单元然后指示所接收的DAR处于队列中的确定位置，并且处理队列以选择检索到的数据以在该信道上传送到主机系统。

10. 发明授权

US5870537A Concurrent switch to shadowed device for storage controller and device errors 失效
标题翻译：同时切换到阴影设备进行存储控制器和设备错误
公开(公告)号：US5870537A
公开(公告)日：1999-02-09
申请号：US614588
申请日：1996-03-13
申请人： Robert Frederic Kern , Michael Aloysius Paulsen , William Chambers Shepard , Harry Morris Yudenfriend
发明人： Robert Frederic Kern , Michael Aloysius Paulsen , William Chambers Shepard , Harry Morris Yudenfriend
IPC分类号： G06F11/14 , G06F11/20 , G06F11/00
CPC分类号： G06F11/2094 , G06F11/2064 , G06F11/2097 , G06F11/2071
摘要： A disaster recovery system providing remote data shadowing between a primary and a secondary site uses a method and apparatus for swapping, or switching, host directed I/O operations from a primary data storage device to a secondary data storage device in a remote copy duplex pair. Application programs running in a host processor at the primary site first quiesce all I/O operations and record updates targeted to the primary data storage device. The remote copy duplex pair is checked to verify that the secondary data storage device is a fully synchronized copy of the primary data storage device. The secondary data storage device is then swapped with the primary data storage device by terminating the remote copy duplex pair, establishing an opposite direction remote copy duplex pair such that the secondary data storage device is a primary device of the duplex pair and the primary data storage device is a shadowing device, and updating the application programs running in the primary host processor with a device address of the secondary data storage device substituted as a device address of the primary data storage device. Finally, the primary host processor resumes its application programs such that subsequent I/O operations and record updates targeted for the primary data storage device are directed through a secondary storage controller to the secondary data storage device, and copied to the primary data storage device.
摘要翻译：在主站点和辅助站点之间提供远程数据遮蔽的灾难恢复系统使用一种方法和装置，用于将主机定向I / O操作从主数据存储设备交换或切换到远程复制双工对中的辅助数据存储设备。在主站点上运行在主机处理器中的应用程序首先将所有I / O操作暂停并记录主数据存储设备的更新。检查远程复制双工对以验证辅助数据存储设备是主数据存储设备的完全同步的副本。然后，通过终止远程复制双工对，次主数据存储设备与主数据存储设备交换，建立相对方向的远程复制双工对，使得辅助数据存储设备是双工对的主设备和主数据存储设备是遮蔽设备，并且将辅助数据存储设备的设备地址替换为主数据存储设备的设备地址来更新主主机处理器中运行的应用程序。最后，主主机处理器恢复其应用程序，使得针对主数据存储设备的后续I / O操作和记录更新通过辅助存储控制器被引导到辅助数据存储设备，并被复制到主数据存储设备。

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