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1. 发明授权

US06574746B1 System and method for improving multi-bit error protection in computer memory systems 有权
标题翻译：改进计算机存储系统中多位错误保护的系统和方法
公开(公告)号：US06574746B1
公开(公告)日：2003-06-03
申请号：US09347117
申请日：1999-07-02
申请人： Tayung Wong , Ashok Singhal , Clement Fang , John Carrillo , Han Y. Ko
发明人： Tayung Wong , Ashok Singhal , Clement Fang , John Carrillo , Han Y. Ko
IPC分类号： G06F1108
CPC分类号： G06F11/1012 , G06F11/102
摘要： A system and method for storing error correction check words in computer memory modules. Check bits stored in physically adjacent locations within a dynamic random access memory (DRAM) chip are assigned to different check words. By assigning check bits to check words in this manner, multi-bit soft errors resulting from errors in two or more check bits stored in physically adjacent memory locations will appear as single-bit errors to an error correction subsystem. Similarly, the likelihood of multi-bit errors occurring in the same check word may be reduced.
摘要翻译：一种用于在计算机存储器模块中存储纠错检查词的系统和方法。检查存储在动态随机存取存储器（DRAM）芯片内的物理相邻位置的位被分配给不同的检查字。通过以这种方式分配校验位以检查字，存储在物理上相邻的存储器位置中的两个或更多个校验位中的错误导致的多位软错误将作为单位错误出现到纠错子系统。类似地，可以减少在相同检查字中发生的多位错误的可能性。

2. 发明授权

US07222220B2 Multiprocessing system employing address switches to control mixed broadcast snooping and directory based coherency protocols transparent to active devices 有权
标题翻译：多处理系统采用地址交换机控制混合广播窥探和基于目录的一致性协议，对活动设备是透明的
公开(公告)号：US07222220B2
公开(公告)日：2007-05-22
申请号：US10601402
申请日：2003-06-23
申请人： Robert E. Cypher , Ashok Singhal
发明人： Robert E. Cypher , Ashok Singhal
IPC分类号： G06F12/12
CPC分类号： G06F12/0815 , G06F12/0817 , G06F12/0831
摘要： A multiprocessor computer system is configured to selectively transmit address transactions through an address network using either a broadcast mode or a point-to-point mode transparent to the active devices that initiate the transactions. Depending on the mode of transmission selected, either a directory-based coherency protocol or a broadcast snooping coherency protocol is implemented to maintain coherency within the system. A computing node is formed by a group of clients which share a common address and data network. The address network is configured to determine whether a particular transaction is to be conveyed in broadcast mode or point-to-point mode. In one embodiment, the address network includes a mode table with entries which are configurable to indicate transmission modes corresponding to different regions of the address space within the node. Upon receiving a coherence request transaction, the address network may then access the table in order to determine the transmission mode, broadcast or point-to-point, which corresponds to the received transaction.
摘要翻译：多处理器计算机系统被配置为通过地址网络选择性地发送地址事务，所述地址网络使用对启动事务的活动设备透明的广播模式或点对点模式。根据所选择的传输模式，实现基于目录的一致性协议或广播窥探一致性协议，以保持系统内的一致性。计算节点由共享公共地址和数据网络的一组客户端形成。地址网络被配置为确定特定事务是以广播模式还是点对点模式传送。在一个实施例中，地址网络包括具有可配置为指示对应于节点内的地址空间的不同区域的传输模式的条目的模式表。在接收到一致性请求事务时，地址网络然后可以访问该表，以便确定对应于所接收的事务的传输模式，广播或点对点。

3. 发明申请

US20060259687A1 Region mover applications 有权
标题翻译：区域移动应用程序
公开(公告)号：US20060259687A1
公开(公告)日：2006-11-16
申请号：US11269024
申请日：2005-11-07
申请人： Sushil Thomas , Ashok Singhal
发明人： Sushil Thomas , Ashok Singhal
IPC分类号： G06F12/16 , G06F12/00
CPC分类号： G06F3/0647 , G06F3/0607 , G06F3/0689
摘要： A method is provided for a data storage system to change the RAID type, the layout characteristics, and the performance characteristics of a virtual volume mapped to logical disk regions in one or more logical disks while the data storage system remains online to a host. Another method is provided for a data storage system to consolidate space in one or more logical disks mapped to a virtual volume while the data storage system remains online to a host. The one or more logical disks can be consolidated to free unused chunklet regions for use in other logical disks.
摘要翻译：为数据存储系统提供了一种方法，用于在数据存储系统保持联机到主机时，改变映射到一个或多个逻辑磁盘中的逻辑磁盘区域的虚拟卷的RAID类型，布局特性和性能特征。为数据存储系统提供另一种方法，以便在数据存储系统保持与主机联机的情况下，整合映射到虚拟卷的一个或多个逻辑磁盘中的空间。可以合并一个或多个逻辑磁盘以释放用于其他逻辑磁盘的未使用的chunklet区域。

4. 发明授权

US06973484B1 Method of communicating data in an interconnect system 有权
标题翻译：在互连系统中传送数据的方法
公开(公告)号：US06973484B1
公开(公告)日：2005-12-06
申请号：US09751994
申请日：2000-12-29
申请人： Ashok Singhal , David J. Broniarczyk , George R. Cameron
发明人： Ashok Singhal , David J. Broniarczyk , George R. Cameron
IPC分类号： G06F12/08 , G06F15/167
CPC分类号： G06F12/0813 , G06F12/0831
摘要： A method is provided for communicating data in an interconnect system comprising a plurality of nodes. In one aspect, the method includes: issuing a command packet from a first node, the command packet comprising a respective header quadword and at least one respective data quadword for conveying a command to a second node, wherein the command is selected from a group comprising a direct memory access (DMA) command, an administrative write command, a memory copy write command, and a built in self test (BIST) command; receiving the command packet at the second node; issuing an acknowledgement packet from the second node, the acknowledgement packet comprising a respective header quadword for conveying an acknowledgement that the command packet has been received at the second node.
摘要翻译：提供一种用于在包括多个节点的互连系统中传送数据的方法。一方面，该方法包括：从第一节点发出命令分组，该命令分组包括相应的首标四字和至少一个相应的数据四字，用于将命令传送到第二节点，其中该命令选自包括直接存储器访问（DMA）命令，管理写入命令，存储器复制写入命令和内置自检（BIST）命令; 在第二节点接收命令包; 从所述第二节点发出确认分组，所述确认分组包括相应的报头四字，用于传送在所述第二节点处已经接收到所述命令分组的确认。

5. 发明授权

US5829033A Optimizing responses in a coherent distributed electronic system including a computer system 失效
标题翻译：在包括计算机系统的连贯分布式电子系统中优化响应
公开(公告)号：US5829033A
公开(公告)日：1998-10-27
申请号：US673059
申请日：1996-07-01
申请人： Erik Hagersten , Ashok Singhal , Bjorn Liencres
发明人： Erik Hagersten , Ashok Singhal , Bjorn Liencres
IPC分类号： G06F12/08 , G06F13/368 , G06F13/00
CPC分类号： G06F13/368 , G06F12/0831
摘要： In a computer system implementing state transitions that change logically and atomically at an address packet independently of a response, the coherence domain is extended among distributed memory. As such, memory line ownership transfers upon request, and not upon requestor receipt of data. Requestor receipt of data is rapidly implemented by providing a ReadToShareFork transaction that simultaneously causes a write-type operation that updates invalid data from a requested memory address, and provides the updated data to the requesting device. More specifically, when writing valid data to memory, the ReadToShare Fork transaction simultaneously causes reissuance of the originally requested transaction using the same memory address and ID information. The requesting device upon recognizing its transaction ID on the bus system will pull the now valid data from the desired memory location.
摘要翻译：在实现状态转换的计算机系统中，其独立于响应在地址分组上逻辑地和原子地地改变，所述相干域在分布式存储器之间被扩展。因此，内存线所有权根据请求转移，而不是请求者接收数据。通过提供ReadToShareFork事务来快速实现数据的请求者接收，该事务同时导致从所请求的存储器地址更新无效数据的写入型操作，并将更新的数据提供给请求设备。更具体地说，当向存储器写入有效数据时，ReadToShare Fork事务同时使用相同的存储器地址和ID信息来重新发出原始请求的事务。请求设备在总线系统上识别其交易ID将从期望的存储器位置提取现在的有效数据。

6. 发明授权

US08037026B1 Protected user-controllable volume snapshots 有权
标题翻译：受保护的用户可控的卷快照
公开(公告)号：US08037026B1
公开(公告)日：2011-10-11
申请号：US11173101
申请日：2005-07-01
申请人： Ashok Singhal
发明人： Ashok Singhal
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F3/0605 , G06F3/065 , G06F3/067 , G06F21/6227 , G06F2221/2141
摘要： A method is provided to allow a user on a host system to update a specific snapshot in a data storage system where the user does not have other editing privileges. The method includes (1) receiving a request to update the snapshot from the user and (2) determining from an access control list if the user is permitted to update the snapshot. If the user is permitted to update the snapshot, the method includes (3) recording parameters for a VLUN (virtual logic unit) associated with the snapshot, (4) removing the VLUN from the data storage system, (5) replacing the snapshot with a new snapshot created from a parent volume of the snapshot, (6) recreating the VLUN for the new snapshot from the recorded parameters, and (7) exporting the VLUN to the host system.
摘要翻译：提供了一种方法，以允许主机系统上的用户更新数据存储系统中用户没有其他编辑权限的特定快照。该方法包括（1）从用户接收更新快照的请求，以及（2）从访问控制列表确定是否允许用户更新快照。如果允许用户更新快照，该方法包括（3）记录与快照关联的VLUN（虚拟逻辑单元）的参数，（4）从数据存储系统中删除VLUN;（5）用从快照的父卷创建的新快照，（6）从记录的参数重新创建新快照的VLUN，以及（7）将VLUN导出到主机系统。

7. 发明授权

US07444489B2 Applications for non-disruptively moving data between logical disk regions in a data storage system 有权
标题翻译：应用于数据存储系统中的逻辑磁盘区之间的非中断移动数据
公开(公告)号：US07444489B2
公开(公告)日：2008-10-28
申请号：US11269024
申请日：2005-11-07
申请人： Sushil Thomas , Ashok Singhal
发明人： Sushil Thomas , Ashok Singhal
IPC分类号： G06F12/02
CPC分类号： G06F3/0647 , G06F3/0607 , G06F3/0689
摘要： A method is provided for a data storage system to change the RAID type, the layout characteristics, and the performance characteristics of a virtual volume mapped to logical disk regions in one or more logical disks while the data storage system remains online to a host. Another method is provided for a data storage system to consolidate space in one or more logical disks mapped to a virtual volume while the data storage system remains online to a host. The one or more logical disks can be consolidated to free unused chunklet regions for use in other logical disks.
摘要翻译：为数据存储系统提供了一种方法，用于在数据存储系统保持联机到主机时，改变映射到一个或多个逻辑磁盘中的逻辑磁盘区域的虚拟卷的RAID类型，布局特性和性能特征。为数据存储系统提供另一种方法，以便在数据存储系统保持与主机联机的情况下，整合映射到虚拟卷的一个或多个逻辑磁盘中的空间。可以合并一个或多个逻辑磁盘以释放用于其他逻辑磁盘的未使用的chunklet区域。

8. 发明申请

US20060259727A1 Region mover 有权
标题翻译：区域移动
公开(公告)号：US20060259727A1
公开(公告)日：2006-11-16
申请号：US11269399
申请日：2005-11-07
申请人： Sushil Thomas , Ashok Singhal
发明人： Sushil Thomas , Ashok Singhal
IPC分类号： G06F13/28
CPC分类号： G06F3/0647 , G06F3/0607 , G06F3/0631 , G06F3/0689
摘要： A method is provided for a data storage system to move data from a source logical disk (LD) region to a target LD region while the data storage system remains online to a host. The method includes determining if a region move will create excessive load so the data storage system appears offline to the host. If not, the method includes causing writes to the source LD region to be mirrored to the target LD region, causing data in the source LD region to be copied to the target LD region, blocking reads and writes to the data storage system, and flushing dirty cache in the data storage system. If flushing the dirty cache is fast so the data storage system appears online to the host, the method includes updating mappings of the virtual volume to the LD regions and resuming the reads and writes to the data storage system.
摘要翻译：提供了一种用于数据存储系统将数据从源逻辑磁盘（LD）区域移动到目标LD区域的方法，同时数据存储系统保持在主机上。该方法包括确定区域移动是否会产生过大的负载，从而使数据存储系统对主机显示脱机。如果不是，则该方法包括使源LD区域的写入被映射到目标LD区域，使得源LD区域中的数据被复制到目标LD区域，阻止对数据存储系统的读取和写入以及冲洗脏缓存在数据存储系统中。如果刷新脏缓存是快速的，所以数据存储系统在主机上出现，该方法包括将虚拟卷的映射更新到LD区域，并恢复对数据存储系统的读写操作。

9. 发明授权

US07032078B2 Shared memory multiprocessing system employing mixed broadcast snooping and directory based coherency protocols 有权
标题翻译：共享内存多处理系统采用混合广播窥探和基于目录的一致性协议
公开(公告)号：US07032078B2
公开(公告)日：2006-04-18
申请号：US10136619
申请日：2002-05-01
申请人： Robert Cypher , Ashok Singhal
发明人： Robert Cypher , Ashok Singhal
IPC分类号： G06F12/12
CPC分类号： G06F12/0831 , G06F12/0817
摘要： A multiprocessor computer system to selectively transmit address transactions using a broadcast mode or a point-to-point mode. Either a directory-based coherency protocol or a broadcast snooping coherency protocol is implemented to maintain coherency. A node is formed by a group of clients which share a common address and data network. The address network determines whether a transaction is conveyed in broadcast mode or point-to-point mode. The address network includes a table with entries which indicate transmission modes corresponding to different regions of the address space within the node. Upon receiving a coherence request transaction, the address network may access the table to determine the transmission mode which corresponds to the received transaction. Network congestion may be monitored and transmission modes adjusted accordingly. When network utilization is high, the number of transactions which are broadcast may be reduced. Alternatively, when network utilization is low, the number of broadcasts may be increased.
摘要翻译：一种用于使用广播模式或点对点模式选择性地发送地址事务的多处理器计算机系统。实现基于目录的一致性协议或广播窥探一致性协议以维持一致性。节点由共享公共地址和数据网络的一组客户端形成。地址网络确定事务是以广播模式还是点对点模式传送。地址网络包括具有表示对应于节点内的地址空间的不同区域的传输模式的条目的表。在接收到一致性请求事务时，地址网络可以访问该表以确定对应于接收到的事务的传输模式。可以监控网络拥塞，并相应调整传输模式。当网络利用率高时，可以减少广播的事务数量。或者，当网络利用率低时，可以增加广播数量。

10. 发明授权

US5898840A Maintaining a sequential store order (SSO) in a non-SSO machine 失效
标题翻译：在非SSO机器中维护顺序存储单（SSO）
公开(公告)号：US5898840A
公开(公告)日：1999-04-27
申请号：US673049
申请日：1996-07-01
申请人： Aleksandr Guzovskiy , William A. Nesheim , Ashok Singhal
发明人： Aleksandr Guzovskiy , William A. Nesheim , Ashok Singhal
IPC分类号： G06F9/46 , G06F15/16
CPC分类号： G06F9/52
摘要： In a multiprocessor system, a method, apparatus, and article of manufacture for maintaining the proper sequence of store/write operations between multiple processors to remote I/O devices without requiring changes to application software. A synchronizer is employed to synchronize write operations to the remote I/O device, and the write operations are synchronized individually upon detection and emulation, or as a group upon detection of the release of a mutual exclusion lock.
摘要翻译：在多处理器系统中，一种方法，装置和制品，用于将多个处理器之间的存储/写入操作的适当序列维持到远程I / O设备，而不需要更改应用软件。使用同步器将写入操作与远程I / O设备同步，并且在检测和仿真时单独同步写入操作，或者在检测到互斥锁的释放时作为组。

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