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1. 发明授权

US07111189B1 Method for transaction log failover merging during asynchronous operations in a data storage network 有权
标题翻译：在数据存储网络中异步操作期间事务日志故障切换合并的方法
公开(公告)号：US07111189B1
公开(公告)日：2006-09-19
申请号：US09538700
申请日：2000-03-30
申请人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker
发明人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker
IPC分类号： G06F11/00
CPC分类号： G06F11/2092
摘要： A disaster-tolerant data backup and remote copy system which is implemented as a controller-based replication of one or more LUNs (logical units) between two remotely separated pairs of array controllers connected by redundant links. In the situation wherein an array controller fails during an asynchronous copy operation, the partner array controller uses a ‘micro log’ stored in mirrored cache memory to recover transactions, in order, which were ‘missed’ by the backup storage array when the array controller failure occurred.
摘要翻译：一种容灾数据备份和远程复制系统，可实现为通过冗余链路连接的两个远程分离的阵列控制器对之间的一个或多个LUN（逻辑单元）的基于控制器的复制。在阵列控制器在异步复制操作期间发生故障的情况下，伙伴阵列控制器使用存储在镜像缓存存储器中的“微日志”来恢复按照阵列控制器在备份存储阵列中“丢失”的事务发生故障

2. 发明授权

US07058848B2 Controller-based remote copy system with logical unit grouping 有权
公开(公告)号：US07058848B2
公开(公告)日：2006-06-06
申请号：US10662668
申请日：2003-09-15
申请人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , James E. Pherson , Roger L. Oakey
发明人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , James E. Pherson , Roger L. Oakey
IPC分类号： G06F11/00
CPC分类号： G06F11/2007 , G06F11/2064 , G06F11/2069 , G06F11/2071 , G06F11/2089 , G06F2201/82 , Y10S707/99952 , Y10S707/99953
摘要： A data replication system having a redundant configuration including dual Fiber Channel fabric links interconnecting each of the components of two data storage sites, wherein each site comprises a host computer and associated data storage array, with redundant array controllers and adapters. The system employs the grouping of logical units into ‘association sets’, for logging and failover purposes. The concept of association sets allows the system provides for proper ordering of I/O operations during logging across multiple volumes. In addition, association sets are employed by system to provide failure consistency by causing the group of logical units/volumes to all fail at the same time, ensuring a point in time consistency on the remote site.

3. 发明授权

US06658540B1 Method for transaction command ordering in a remote data replication system 有权
标题翻译：远程数据复制系统中事务命令排序的方法
公开(公告)号：US06658540B1
公开(公告)日：2003-12-02
申请号：US09540309
申请日：2000-03-31
申请人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , Richard F. Lary
发明人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , Richard F. Lary
IPC分类号： G06F1208
CPC分类号： G06F11/201 , G06F11/2007 , G06F11/2064 , G06F11/2071 , H04L1/16 , H04L1/22 , Y10S707/99953 , Y10S707/99955
摘要： A disaster-tolerant data backup and remote copy system which is implemented as a controller-based replication of one or more LUNs (logical units) between two remotely separated pairs of array controllers connected by redundant links. The system provides a method for allowing a large number of commands to be ‘outstanding’ in transit between local and remote sites while ensuring the proper ordering of commands on remote media during asynchronous or synchronous data replication. In addition, the system provides a mechanism for automatic ‘tuning’ of links based on the distance between the array controllers.
摘要翻译：一种容灾数据备份和远程复制系统，可实现为通过冗余链路连接的两个远程分离的阵列控制器对之间的一个或多个LUN（逻辑单元）的基于控制器的复制。该系统提供了一种方法，允许在本地和远程站点之间传输大量命令“突出”，同时确保在异步或同步数据复制期间在远程介质上正确排序命令。此外，该系统提供了一种基于阵列控制器之间的距离自动“调整”链路的机制。

4. 发明授权

US06629264B1 Controller-based remote copy system with logical unit grouping 有权
标题翻译：基于控制器的远程复制系统，具有逻辑单元分组
公开(公告)号：US06629264B1
公开(公告)日：2003-09-30
申请号：US09538908
申请日：2000-03-30
申请人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , James E. Pherson , Roger L. Oakey
发明人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , James E. Pherson , Roger L. Oakey
IPC分类号： G06F1100
CPC分类号： G06F11/2007 , G06F11/2064 , G06F11/2069 , G06F11/2071 , G06F11/2089 , G06F2201/82 , Y10S707/99952 , Y10S707/99953
摘要： A data replication system having a redundant configuration including dual Fiber Channel fabric links interconnecting each of the components of two data storage sites, wherein each site comprises a host computer and associated data storage array, with redundant array controllers and adapters. The system employs the grouping of logical units into ‘association sets’, for logging and failover purposes. The concept of association sets allows the system provides for proper ordering of I/O operations during logging across multiple volumes. In addition, association sets are employed by system to provide failure consistency by causing the group of logical units/volumes to all fail at the same time, ensuring a point in time consistency on the remote site.
摘要翻译：具有冗余配置的数据复制系统，其包括互连两个数据存储站点的每个组件的双光纤通道结构链路，其中每个站点包括具有冗余阵列控制器和适配器的主计算机和相关联的数据存储阵列。系统将逻辑单元分组为“关联集”，用于记录和故障转移。关联集的概念允许系统在跨多个卷记录期间提供I / O操作的正确排序。此外，系统采用关联集合，通过使逻辑单元/卷的组同时失败来提供故障一致性，确保远程站点上的时间点一致性。

5. 发明授权

US06996691B2 Method for transaction command ordering in a remote data replication system 有权
公开(公告)号：US06996691B2
公开(公告)日：2006-02-07
申请号：US10652328
申请日：2003-08-29
申请人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , Richard F. Lary
发明人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , Richard F. Lary
IPC分类号： G06F12/00
CPC分类号： G06F11/201 , G06F11/2007 , G06F11/2064 , G06F11/2071 , H04L1/16 , H04L1/22 , Y10S707/99953 , Y10S707/99955
摘要： A disaster-tolerant data backup and remote copy system which is implemented as a controller-based replication of one or more LUNs (logical units) between two remotely separated pairs of array controllers connected by redundant links. The system provides a method for allowing a large number of commands to be ‘outstanding’ in transit between local and remote sites while ensuring the proper ordering of commands on remote media during asynchronous or synchronous data replication. In addition, the system provides a mechanism for automatic ‘tuning’ of links based on the distance between the array controllers.

6. 发明授权

US06601187B1 System for data replication using redundant pairs of storage controllers, fibre channel fabrics and links therebetween 有权
标题翻译：使用冗余对存储控制器，光纤通道结构和其间的链接进行数据复制的系统
公开(公告)号：US06601187B1
公开(公告)日：2003-07-29
申请号：US09539745
申请日：2000-03-31
申请人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , Paul Guttormson , Richard F. Lary
发明人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , Paul Guttormson , Richard F. Lary
IPC分类号： G06F1100
CPC分类号： G06F11/2071 , G06F11/2064 , H04L49/357 , H04L49/552 , H04L49/557
摘要： A data replication system having a redundant configuration including dual Fibre Channel fabric links interconnecting each of the components of two data storage sites, wherein each site comprises a host computer and associated data storage array, with redundant array controllers and adapters. Each array controller in the system is capable of performing all of the data replication functions, and each host ‘sees’ remote data as if it were local. Each array controller has a dedicated link via a fabric to a partner on the remote side of the long-distance link between fabric elements. Each dedicated link does not appear to any host as an available link to them for data access; however, it is visible to the partner array controllers involved in data replication operations. These links are managed by each partner array controller as if being ‘clustered’ with a reliable data link between them.
摘要翻译：具有冗余配置的数据复制系统，其包括互连两个数据存储站点的每个组件的双光纤通道结构链路，其中每个站点包括具有冗余阵列控制器和适配器的主计算机和相关联的数据存储阵列。系统中的每个阵列控制器都能够执行所有的数据复制功能，并且每个主机“看到”远程数据就好像它是本地的。每个阵列控制器都有一个通过一个结构的专用链路，架构元素之间的长距离链接每个专用链路不会显示为任何主机作为可用的链接，用于数据访问;但是，对于涉及数据复制操作的合作伙伴阵列控制器可见，这些链接由每个合作伙伴管理数组控制器就像在它们之间具有可靠的数据链接“聚集”一样。

7. 发明授权

US06658590B1 Controller-based transaction logging system for data recovery in a storage area network 有权
标题翻译：基于控制器的事务记录系统，用于存储区域网络中的数据恢复
公开(公告)号：US06658590B1
公开(公告)日：2003-12-02
申请号：US09539011
申请日：2000-03-30
申请人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , James E. Pherson , Paul Guttormson
发明人： Stephen J. Sicola , Susan G. Elkington , Michael D. Walker , James E. Pherson , Paul Guttormson
IPC分类号： G06F1100
CPC分类号： G06F11/2082 , G06F11/1471 , G06F11/2005 , G06F11/2038 , G06F11/2048 , G06F11/2089
摘要： A system which provides a completely redundant configuration including dual Fibre Channel fabric links interconnecting each of the components of two data storage sites, wherein each site comprises a host computer and associated data storage array, with redundant array controllers and adapters. The array controllers perform a command and data logging function which stores all host write commands and data ‘missed’ by the backup storage array during a situation wherein the links between the sites are down, the remote site is down, or where a site failover to the remote site has occurred. Log units are used to store, in order, all commands and data for every transaction which was ‘missed’ by the backup storage array when one of the above system error conditions has occurred. The system provides rapid and accurate recovery of backup data at the remote site by sending all logged commands and data from the logging site over the link to the backup site in order, while avoiding the overhead of a full copy operation.
摘要翻译：提供完全冗余配置的系统，包括互连两个数据存储站点的每个组件的双光纤通道结构链路，其中每个站点包括具有冗余阵列控制器和适配器的主计算机和相关联的数据存储阵列。阵列控制器执行命令和数据记录功能，该功能在站点之间的链路关闭，远程站点关闭或站点故障切换到的位置的情况下，存储备份存储阵列的所有主机写入命令和数据“丢失” 远程站点已发生。日志单元用于按顺序存储当发生上述系统错误条件之一时由备份存储阵列“错过”的每个事务的所有命令和数据。该系统通过将所有记录的命令和数据从记录站点通过链路发送到备份站点，从而在远程站点快速准确地恢复备份数据，同时避免了完整复制操作的开销。

8. 发明授权

US06643795B1 Controller-based bi-directional remote copy system with storage site failover capability 有权
标题翻译：基于控制器的双向远程复制系统，具有存储站点故障切换功能
公开(公告)号：US06643795B1
公开(公告)日：2003-11-04
申请号：US09538680
申请日：2000-03-30
申请人： Stephen J. Sicola , Susan G. Elkington
发明人： Stephen J. Sicola , Susan G. Elkington
IPC分类号： G06F1100
CPC分类号： G06F11/2069 , G06F11/2005 , G06F11/2007 , G06F11/2023 , G06F11/2035 , G06F11/2071 , G06F11/2079 , G06F11/2082 , G06F11/2089 , G06F2201/855 , H04L67/1002
摘要： A data replication system having a redundant configuration including dual Fiber Channel fabric links interconnecting each of the components of two data storage sites, wherein each site comprises a host computer and associated data storage array, with redundant array controllers and adapters. The system includes the capability of simultaneous bi-directional remote data replication which permits the system to operate in an ‘extended cluster’ mode, as if each of the remote storage arrays were local relative to the respective remote host. The system further includes the concept of ‘home’ and ‘alternate’ storage nodes, which provide for automatic node failover from a primary to a designated alternate node, without necessitating re-booting of the remote node. Write data transfers are potentially host retry-able at both sites; upon failure of controllers at one site, the host re-issues the same write on other site.
摘要翻译：具有冗余配置的数据复制系统，其包括互连两个数据存储站点的每个组件的双光纤通道结构链路，其中每个站点包括具有冗余阵列控制器和适配器的主计算机和相关联的数据存储阵列。该系统包括同步双向远程数据复制的功能，允许系统以“扩展集群”模式运行，好像每个远程存储阵列相对于相应的远程主机是本地的。该系统还包括“主”和“备用”存储节点的概念，其提供从主节点到指定备用节点的自动节点故障转移，而不需要重新引导远程节点。写入数据传输可能在两个站点都可以重试; 在一个站点的控制器发生故障时，主机在其他站点重新发出相同的写入。

9. 发明授权

US06571324B1 Warmswap of failed memory modules and data reconstruction in a mirrored writeback cache system 失效
标题翻译：在镜像回写缓存系统中出现内存模块故障和数据重构的故障
公开(公告)号：US06571324B1
公开(公告)日：2003-05-27
申请号：US08883381
申请日：1997-06-26
申请人： Susan G. Elkington , Stephen J. Sicola , Wayne H. Umland
发明人： Susan G. Elkington , Stephen J. Sicola , Wayne H. Umland
IPC分类号： G06F1208
CPC分类号： G06F11/2082 , G11C29/74
摘要： A warmswap operation to replace modules in a mirrored cache system has been accomplished by disabling mirrored write operations in the cache system; testing the replacement memory module in the cache system; and restoring the mirrored data in the cache system. The restoring operation is accomplished by first quiescing write operations to stop writing data in the cache system not backed up in non-volatile data storage. Then data is copied from surviving memory modules to the replacement module, and the cooperative interaction of the surviving memory modules with the replacement memory module is validated. The validating operation verifies the cache modules are ready and the controllers are synchronized. After validation the quiesced write operations are un-quiesced, and mirrored-write operations for the cache system are enabled.
摘要翻译：通过禁用缓存系统中的镜像写入操作已经实现了用于替换镜像缓存系统中的模块的warmswap操作; 测试缓存系统中的替换内存模块; 并恢复缓存系统中的镜像数据。恢复操作通过首先停止写操作来停止在非易失性数据存储中未备份的缓存系统中写入数据来实现。然后将数据从幸存的存储器模块复制到替换模块，并且存活的存储器模块与替换存储器模块的协作交互被验证。验证操作验证缓存模块是否准备好并且控制器是同步的。在验证之后，静默写入操作是非静默的，并且缓存系统的镜像写操作被启用。

10. 发明授权

US06279078B1 Apparatus and method for synchronizing a cache mode in a dual controller, dual cache memory system operating in a plurality of cache modes 失效
标题翻译：用于同步双控制器中的高速缓存模式的装置和方法，以多个高速缓存模式操作的双缓存存储器系统
公开(公告)号：US06279078B1
公开(公告)日：2001-08-21
申请号：US08668512
申请日：1996-06-28
申请人： Stephen J. Sicola , Wayne H. Umland , Clark E. Lubbers , Susan G. Elkington
发明人： Stephen J. Sicola , Wayne H. Umland , Clark E. Lubbers , Susan G. Elkington
IPC分类号： G06F1216
CPC分类号： G06F11/2017 , G06F11/1666 , G06F11/20 , G06F11/2097 , G06F12/0802
摘要： An apparatus and method for synchronizing a cache mode in a cache memory system in a computer to protect cache operations. The cache memory system has a first controller and a second controller and two cache modules and operates in a plurality of cache modes. The cache mode is stored as metadata in the cache modules and is detected by the first controller to determine the cache mode. Lock signals in the first controller are set in accordance with the cache mode detected to set the cache mode state in the first controller. The second controller copies the cache mode state from the first controller to synchronize both controllers in the same cache mode state. After a failure of the second controller, the first controller may lock access to both caches to recover data previously accessed by the second controller. The second controller restarts and copies the cache mode state from the first controller, so that both controllers return to the cache mode state prior to the failure of the second controller.
摘要翻译：一种用于使计算机中的高速缓冲存储器系统中的高速缓存模式同步以保护高速缓存操作的装置和方法。高速缓冲存储器系统具有第一控制器和第二控制器以及两个高速缓存模块，并以多种高速缓存模式操作。高速缓存模式作为元数据存储在缓存模块中，由第一控制器检测以确定高速缓存模式。根据检测到的高速缓存模式来设置第一控制器中的锁定信号以设置第一控制器中的高速缓存模式状态。第二个控制器从第一个控制器复制缓存模式状态，以同步两个控制器处于相同的高速缓存模式状态。在第二控制器发生故障之后，第一控制器可以锁定对两个高速缓存的访问以恢复先前由第二控制器访问的数据。第二控制器从第一控制器重新启动并复制缓存模式状态，使得两个控制器在第二控制器发生故障之前返回到高速缓存模式状态。

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