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1. 发明授权

US5790775A Host transparent storage controller failover/failback of SCSI targets and associated units 失效
标题翻译：主机透明存储控制器故障切换/故障恢复SCSI目标和关联单元
公开(公告)号：US5790775A
公开(公告)日：1998-08-04
申请号：US546804
申请日：1995-10-23
申请人： Randal S. Marks , Randy L. Roberson , Diana Shen , Stephen J. Sicola
发明人： Randal S. Marks , Randy L. Roberson , Diana Shen , Stephen J. Sicola
IPC分类号： G06F11/20
CPC分类号： G06F11/1658 , G06F11/2092 , G06F2201/85
摘要： Provided herein is a method and apparatus for host transparent storage controller failover and failback. A controller is capable of assuming the identity of a failed controller while continuing to respond to its own SCSI ID or IDs in such a way that all SCSI IDs and associated units (LUNS) of the failed controller are effectively taken over by the surviving controller. This "failover" behavior is transparent to any attached host computers and is treated by such attached hosts as a powerfail condition. The symmetric operation of returning the targets (IDs) and units (LUNs) to the previously failing controller ("failback") is likewise transparent.
摘要翻译：本文提供了一种用于主机透明存储控制器故障切换和故障恢复的方法和装置。控制器能够以继续响应其自己的SCSI ID或ID的方式假定故障控制器的身份，使得故障控制器的所有SCSI ID和相关联的单元（LUNS）被有效控制器有效地接管。这种“故障切换”行为对任何连接的主机都是透明的，并被这样连接的主机视为电源条件。将目标（ID）和单位（LUN）返回到先前故障的控制器（“故障恢复”）的对称操作同样是透明的。

2. 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

3. 发明授权

US06947981B2 Flexible data replication mechanism 有权
标题翻译：灵活的数据复制机制
公开(公告)号：US06947981B2
公开(公告)日：2005-09-20
申请号：US10106908
申请日：2002-03-26
申请人： Clark Lubbers , Susan Elkington , Randy Hess , Stephen J. Sicola , James McCarty , Anuja Korgaonkar , Jason Leveille
发明人： Clark Lubbers , Susan Elkington , Randy Hess , Stephen J. Sicola , James McCarty , Anuja Korgaonkar , Jason Leveille
IPC分类号： G06F11/20 , H04L29/06 , H04L29/08 , H04L29/14 , G06F12/00
CPC分类号： G06F11/201 , H04L29/06 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1034 , H04L67/1097 , H04L69/40 , H04L2029/06054 , Y10S707/99953 , Y10S707/99955
摘要： A data replication management (DRM) architecture comprising a plurality of storage cells interconnected by a fabric. Flexibility in connectivity is provided by configuring each storage cell port to the fabric to handle both host data access requests and DRM traffic. Each storage cell comprises one or more storage controllers that can be connected to the fabric in any combination. Processes executing in the storage controller find a path to a desired destination storage cell. The discovery algorithm implements a link service that exchanges information related to DRM between the storage controllers. The DRM architecture is symmetric and peer cooperative such that each controller and storage cell can function as a source and a destination of replicated data. The DRM architecture supports parallel and serial “fan-out” to multiple destinations, whereby the multiple storage cells may implement data replicas.
摘要翻译：包括由织物互连的多个存储单元的数据复制管理（DRM）架构。通过将每个存储单元端口配置到结构来处理主机数据访问请求和DRM流量来提供连接灵活性。每个存储单元包括可以以任何组合连接到织物的一个或多个存储控制器。在存储控制器中执行的进程找到到所需目的地存储单元的路径。发现算法实现了在存储控制器之间交换与DRM相关的信息的链路服务。 DRM架构是对称和对等的协作，使得每个控制器和存储单元可以用作复制数据的源和目的地。 DRM架构支持并行和串行“扇出”到多个目的地，由此多个存储单元可以实现数据副本。

4. 发明授权

US06356979B1 System and method for selectively presenting logical storage units to multiple host operating systems in a networked computing system 有权
标题翻译：用于选择性地向联网计算系统中的多个主机操作系统呈现逻辑存储单元的系统和方法
公开(公告)号：US06356979B1
公开(公告)日：2002-03-12
申请号：US09312944
申请日：1999-05-17
申请人： Stephen J. Sicola , Michael D. Walker , James E. Pherson
发明人： Stephen J. Sicola , Michael D. Walker , James E. Pherson
IPC分类号： G06F1200
CPC分类号： G06F3/0614 , G06F3/0622 , G06F3/0637 , G06F3/0665 , G06F3/0683
摘要： A storage system capable of selectively presenting logical units to one or more host computing systems. The storage system comprises one or more persistent storage devices arranged as logical units; an array controller controlling and coordinating the operations of the persistent storage devices; a memory accessible by the array controller; and a configuration table stored in the memory, the configuration table containing one or more entries governing the interactions between the logical units and the one or more host computing systems. The configuration table contains an entry for each logical unit which the array controller accesses to determine if a particular logical unit should communicate with a particular one of the host computing systems, an entry for each logical unit which the array controller accesses to determine if a particular logical unit should communicate with a particular one of the host computing systems using an internal offset for a logical unit number, and an entry for each logical unit which the array controller accesses to determine if a particular logical unit should communicate with a particular one of the host computing systems using a predetermined host mode.
摘要翻译：能够选择地向一个或多个主计算系统呈现逻辑单元的存储系统。该存储系统包括被布置为逻辑单元的一个或多个永久存储设备; 控制和协调持久存储设备的操作的阵列控制器; 由阵列控制器访问的存储器; 以及存储在所述存储器中的配置表，所述配置表包含管理所述逻辑单元与所述一个或多个主计算系统之间的交互的一个或多个条目。配置表包含阵列控制器访问的每个逻辑单元的条目，以确定特定逻辑单元是否应与主计算系统中的特定一个通信，阵列控制器访问的每个逻辑单元的条目，以确定是否具体逻辑单元应该使用用于逻辑单元号的内部偏移量与主机计算系统中的特定一个通信，以及阵列控制器访问的每个逻辑单元的条目，以确定特定逻辑单元是否应该与特定逻辑单元号通信使用预定主机模式的主机计算系统。

5. 发明授权

US07350046B2 Managed reliability storage system and method monitoring storage conditions 有权
标题翻译：管理可靠性存储系统和方法监控存储条件
公开(公告)号：US07350046B2
公开(公告)日：2008-03-25
申请号：US10817617
申请日：2004-04-02
申请人： Stephen J. Sicola , Charles M. Sander
发明人： Stephen J. Sicola , Charles M. Sander
IPC分类号： G06F12/06
CPC分类号： G06F11/0751 , G06F11/0727
摘要： Disclosed is a managed reliability storage system and method. A data storage system comprises a plurality of storage devices and at least one storage device controller and may also include additional storage device controllers, one or more host systems, and one or more network connections. Aspects of the invention include reliable data storage formats, planned reliability management, threshold reliability management, and software data recovery. Reliable data formats include fault tolerant storage formats such as RAID and implementations thereof. Planned reliability management includes monitoring of system usage and adjustment of usage reflecting an optimal usage model, scheduled and event driven diagnostic execution and conditional adjustment of operating parameters of storage system components. Software data recovery provides copying and reconstruction of data through redundant data formats including parity, ECC, RLL and others encoding methods. Embodiments of the invention provide an opportunity for increased storage system reliability through scheduled or event driven “tune ups” of system usage and of system components, including low level manufacturing parameters, reducing long term storage costs.
摘要翻译：公开了一种管理可靠性存储系统和方法。数据存储系统包括多个存储设备和至少一个存储设备控制器，并且还可以包括附加存储设备控制器，一个或多个主机系统以及一个或多个网络连接。本发明的方面包括可靠的数据存储格式，计划的可靠性管理，阈值可靠性管理和软件数据恢复。可靠的数据格式包括容错存储格式，如RAID及其实现。计划的可靠性管理包括监控系统使用情况和调整使用情况，反映最佳使用模式，计划和事件驱动的诊断执行以及有条件地调整存储系统组件的运行参数。软件数据恢复通过冗余数据格式（包括奇偶校验，ECC，RLL和其他编码方法）提供复制和重建数据。本发明的实施例通过计划或事件驱动的“调整”系统使用和系统组件（包括低级制造参数）提供了增加的存储系统可靠性的机会，从而减少长期存储成本。

6. 发明授权

US07149769B2 System and method for multi-destination merge in a storage area network 有权
公开(公告)号：US07149769B2
公开(公告)日：2006-12-12
申请号：US10106907
申请日：2002-03-26
申请人： Clark Lubbers , Susan Elkington , Randy Hess , Stephen J. Sicola , James McCarty , Anuja Korgaonkar , Jason Leveille
发明人： Clark Lubbers , Susan Elkington , Randy Hess , Stephen J. Sicola , James McCarty , Anuja Korgaonkar , Jason Leveille
IPC分类号： G06F15/16 , G06F7/00 , G06F12/00
CPC分类号： G06F11/2071 , G06F11/1471 , G06F11/2058 , G06F11/2064 , G06F11/2079 , H04L29/06 , H04L67/1002 , H04L67/1097 , H04L69/329 , H04L2029/06054 , Y10S707/99953
摘要： A data storage system adapted to maintain redundant data storage sets at a destination location(s) is disclosed. The data storage system establishes a copy set comprising a source volume and a destination volume. Data written to a source volume is automatically copied to the destination volume. The data storage system maintains a data log that may be activated when the destination volume is inaccessible due to, for example, a malfunction in the destination storage system or in the communication link between the source system and the destination system. I/O commands and the data associated with those commands are written to the data log, and after a destination system becomes available the information in the data log is merged into the destination volume to conform the data in the destination volume to the data in the source volume. The data log competes for disk capacity with other volumes on the system, and log memory is allocated as needed. If multiple remote sites are provided, then the system permits to implements a merge fence to manage the process of merging data into multiple destinations.

7. 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.

8. 发明授权

US06934826B2 System and method for dynamically allocating memory and managing memory allocated to logging in a storage area network 有权
标题翻译：用于动态分配内存和管理分配给存储区域网络中记录的内存的系统和方法
公开(公告)号：US06934826B2
公开(公告)日：2005-08-23
申请号：US10106904
申请日：2002-03-26
申请人： Clark Lubbers , Susan Elkington , Randy Hess , Stephen J. Sicola , James McCarty , Anuja Korgaonkar , Jason Leveille
发明人： Clark Lubbers , Susan Elkington , Randy Hess , Stephen J. Sicola , James McCarty , Anuja Korgaonkar , Jason Leveille
IPC分类号： G06F9/50 , G06F11/20 , G06F12/02 , G06F12/00
CPC分类号： G06F9/5016 , G06F9/50 , G06F11/2007 , G06F11/201 , G06F11/2071 , G06F11/2089 , G06F12/023
摘要： Methods for allocating memory for logging data written by a host computer to a source virtual disk and for managing memory allocated to a data log, in a data storage system adapted to maintain redundant data storage sets at a destination location(s) are disclosed. The data storage system maintains a data log that may be activated when a destination volume is inaccessible. During the logging process the system implements an adaptive memory allocation algorithm that adjusts the log memory allocation increment as a function of the velocity of logging data written by the host computer(s). Similarly, during a merge process the system implements an adaptive memory deallocation algorithm that deallocates log memory in response to the velocity of logging data written by the host computer(s) and the velocity of merge data transmitted to the remote system. An amount of memory allocated to logging data may be compared with an amount of memory allocated to corresponding user data and, if greater, the data log terminated.
摘要翻译：公开了在适于在目的地位置维护冗余数据存储集的数据存储系统中分配用于将由主计算机写入数据的内存分配给源虚拟磁盘并用于管理分配给数据日志的存储器的方法。数据存储系统维护当目标卷不可访问时可以激活的数据记录。在记录过程中，系统实现了一种自适应存储器分配算法，其根据由主计算机写入的记录数据的速度来调整日志存储器分配增量。类似地，在合并处理期间，系统实现自适应存储器解除分配算法，其根据由主计算机写入的记录数据的速度和发送到远程系统的合并数据的速度来释放日志存储器。可以将分配给记录数据的内存量与分配给对应用户数据的内存量进行比较，如果更大，则数据记录被终止。

9. 发明授权

US06912599B2 Method and apparatus for sensing positions of device enclosures within multi-shelf cabinets 有权
标题翻译：用于检测多架机柜内的设备外壳位置的方法和装置
公开(公告)号：US06912599B2
公开(公告)日：2005-06-28
申请号：US10038231
申请日：2001-10-19
申请人： Stephen J. Sicola , Bruce A. Sardeson , Dennis Spicher , Richard Bruce Roberts , Bill Pagano , William K. Miller , Clay T. Wade , Mark Shepp
发明人： Stephen J. Sicola , Bruce A. Sardeson , Dennis Spicher , Richard Bruce Roberts , Bill Pagano , William K. Miller , Clay T. Wade , Mark Shepp
IPC分类号： G06F1/18 , G11B33/12 , G06F3/00
CPC分类号： G11B33/125 , G06F1/18
摘要： A mass storage cabinet having passive device position sensing and including shelves for racking device enclosures. A cabinet bus is linked to the shelves and adapted to provide a unique shelf identifier signal to each of the shelves. The cabinet includes a device providing a cabinet identifier to the shelves. The cabinet bus includes junction boxes having first and second sets of sensing wires and a side connectors linked to the shelves for providing the shelf identifier signal from the first and second sets of sensing wires. To provide a different signal at each junction box, the sensing wires in the first set are moved one position and the sensing wires in the second set are moved one position prior to the connection to an adjacent junction box. An additional sensing wire is linked to the side connectors and grounded and ungrounded at each side connector to alter the signal.
摘要翻译：一种具有被动装置位置检测的大容量存储柜，并且包括用于货架装置外壳的货架。橱柜总线连接到货架上，并适用于向每个货架提供唯一的货架识别信号。机柜包括一个为货架提供机柜标识符的设备。机柜总线包括具有第一和第二组感测线的接线盒和连接到搁架的侧连接器，用于提供来自第一和第二组感测线的货架标识符信号。为了在每个接线盒处提供不同的信号，第一组中的感测线移动一个位置，并且第二组中的感测线在连接到相邻接线盒之前移动一个位置。附加的感测线连接到侧连接器，并在每个侧面连接器处接地和不接地，以改变信号。

10. 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。

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