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11. 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。

12. 发明申请

US20110087787A1 DATA TRANSFER PROTOCOL FOR DATA REPLICATION BETWEEN MULTIPLE PAIRS OF STORAGE CONTROLLERS ON A SAN FABRIC 有权
标题翻译：数据传输协议用于数据复制在多个存储控制器对之间SAN SAN
公开(公告)号：US20110087787A1
公开(公告)日：2011-04-14
申请号：US12969981
申请日：2010-12-16
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 , G06F15/173
CPC分类号： H04L67/06 , G06F11/1666 , G06F11/20 , G06F11/2007 , G06F11/201 , G06F11/2071 , H04L29/06 , H04L67/1095 , H04L67/1097 , H04L69/26 , H04L69/329
摘要： A method for communicating between devices in a network includes creating an I/O tunnel between a first device and a second device through the network. The I/O tunnel is associated with I/O resources in both the first device and the second device, and wherein at least one of the I/O resources comprises a buffer resource. A data transfer operation may be sent between the first device and the second device by consuming at least some of the I/O resources associated with the I/O tunnel. A plurality of commands or a plurality of responses can be aggregated into a single buffer resource. Upon completion of the data transfer operation, the I/O resources that are consumed are automatically renewed.
摘要翻译：用于在网络中的设备之间通信的方法包括通过网络在第一设备和第二设备之间建立I / O隧道。 I / O隧道与第一设备和第二设备中的I / O资源相关联，并且其中至少一个I / O资源包括缓冲资源。可以通过消耗与I / O隧道相关联的至少一些I / O资源来在第一设备和第二设备之间发送数据传输操作。可以将多个命令或多个响应聚合成单个缓冲器资源。完成数据传输操作后，自动更新所消耗的I / O资源。

13. 发明授权

US07542987B2 Automatic site failover 有权
标题翻译：自动站点故障切换
公开(公告)号：US07542987B2
公开(公告)日：2009-06-02
申请号：US11111380
申请日：2005-04-21
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： G06F17/00
CPC分类号： G06F11/2079 , G06F11/2058 , G06F11/2064 , G06F11/2069 , G06F11/2071 , G06F11/2082 , G06F2201/855 , Y10S707/99933 , Y10S707/99942 , Y10S707/99943 , Y10S707/99944 , 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. In operation, the array controllers monitor connection status between array controllers in a DRM group. When a connection failure is detected the controllers determine which of the remaining controllers determine whether the source controller remains online, and if not then which destination controller should assume the role of the source controller.
摘要翻译：公开了一种适于在目的地位置维护冗余数据存储组的数据存储系统。数据存储系统建立包括源卷和目的地卷的复制集。写入源卷的数据将自动复制到目标卷。数据存储系统维护数据记录，当由于例如目的地存储系统中的故障或源系统与目的地系统之间的通信链路而导致目的地卷不可访问时，可能会被激活。 I / O命令和与这些命令相关联的数据被写入数据日志，并且在目标系统变得可用之后，将数据日志中的信息合并到目标卷中，以使目的卷中的数据符合目标卷中的数据源音量。数据日志与系统上的其他卷竞争磁盘容量，并根据需要分配日志内存。在操作中，阵列控制器监视DRM组中阵列控制器之间的连接状态。当检测到连接故障时，控制器确定哪些剩余控制器确定源控制器是否保持联机，如果不是，则哪个目标控制器应承担源控制器的作用。

14. 发明授权

US07032131B2 System and method for ensuring merge completion in a storage area network 失效
标题翻译：确保存储区域网络中的合并完成的系统和方法
公开(公告)号：US07032131B2
公开(公告)日：2006-04-18
申请号：US10106909
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： G06F11/00
CPC分类号： G06F11/2082 , G06F11/2005 , G06F11/2007 , G06F11/2033 , G06F11/2064 , G06F11/2079 , G06F11/2089 , H04L67/1097 , H04L69/329
摘要： Methods and systems for managing disk capacity allocated to a data log in a source data storage system during a merge process are disclosed. Data in the data log may be merged into corresponding data on a destination storage system connected to the source data storage system by at least one communication link. In one embodiment a method comprises maintaining a ratio of merge writes out of the data log to writes from a host computer into the data log within a desired range until the write process reaches a predetermined distance from the end of the data log, and quiescing writes from a host computer into the data log until the data log is fully written to the destination storage system.
摘要翻译：公开了在合并过程中管理分配给源数据存储系统中的数据日志的磁盘容量的方法和系统。可以通过至少一个通信链路将数据记录中的数据合并到连接到源数据存储系统的目的地存储系统上的对应数据中。在一个实施例中，一种方法包括将数据记录中的合并写入的比率维持在期望范围内的从主计算机到数据记录的写入，直到写入过程从数据记录结束到达预定距离，并且停顿写入从主计算机进入数据日志，直到数据日志完全写入目标存储系统。

15. 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.

16. 发明授权

US06920511B2 Method and apparatus for controlling communications in data storage complexes 有权
标题翻译：用于控制数据存储复合体中的通信的方法和装置
公开(公告)号：US06920511B2
公开(公告)日：2005-07-19
申请号：US10086599
申请日：2001-10-19
申请人： Stephen J. Sicola , Bruce Sardeson , Dennis Spicher , Bruce Roberts , Bill Pagano
发明人： Stephen J. Sicola , Bruce Sardeson , Dennis Spicher , Bruce Roberts , Bill Pagano
IPC分类号： G06F3/06 , G06F13/00 , G06F13/14
CPC分类号： G06F3/0601 , G06F2003/0697
摘要： A controller for positioning on a shelf of a cabinet within a mass storage system for controlling communication among device enclosures in a reporting group. The controller includes an interface to a data communication loop linking device enclosures each including disk drives positioned on one or more cabinets. The interface is used to transmit control commands. A cabinet bus interface controller is provided and linked to a cabinet bus in the cabinet to receive enclosure reporting messages from the device enclosures to collect environment information. The cabinet bus interface transmits reporting messages onto the cabinet bus to provide environmental information. The interface controller determines the shelf location of the controller within the cabinet from signals on the cabinet bus and receives the cabinet identifier over the cabinet bus. A processor is linked to the interface controller and functions to create and issue the control commands to the loop interface.
摘要翻译：一种用于定位在大容量存储系统内的机柜的架子上的控制器，用于控制报告组中的设备外壳之间的通信。控制器包括与数据通信环路的接口，链接设备机箱，每个机箱包括位于一个或多个机柜上的磁盘驱动器。该接口用于传输控制命令。机柜总线接口控制器提供并连接到机柜中的机柜总线，以接收来自设备机柜的机箱报告消息，以收集环境信息。柜总线接口将报告信息发送到柜总线上，以提供环境信息。接口控制器根据机柜总线上的信号确定机柜内控制器的货架位置，并通过机柜总线接收机柜标识符。处理器链接到接口控制器，并且用于创建并向循环接口发出控制命令。

17. 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。

18. 发明授权

US6161192A Raid array data storage system with storage device consistency bits and raidset consistency bits 失效
标题翻译： RAID阵列数据存储系统，具有存储设备一致性位和raidset一致性位
公开(公告)号：US6161192A
公开(公告)日：2000-12-12
申请号：US542827
申请日：1995-10-13
申请人： Clark E. Lubbers , Stephen J. Sicola , Ronald H. McLean , James Perry Jackson , Robert A. Ellis
发明人： Clark E. Lubbers , Stephen J. Sicola , Ronald H. McLean , James Perry Jackson , Robert A. Ellis
IPC分类号： G06F11/10 , G06F11/14 , G11B20/18 , G06F11/16
CPC分类号： G06F11/1076 , G06F11/1435 , G06F2211/104 , G11B20/1833
摘要： Metadata described herein on a RAID array includes both device metadata and RAIDset metadata. The device metadata has a device FE bit on each storage device corresponding to each RAID protected block on the storage device. The device FE bit indicates if a corresponding RAID protected block is consistent and thereby useable to regenerate data in another RAID protected block in the corresponding RAID protected block's sliver. The user data also has a forced error bit to indicate if a physical block in the user block has inconsistent data, the RAIDset FE bit. The RAID array of storage devices has user data blocks on each storage device RAID protected by being distributed as slivers of blocks across the RAID array of storage devices. Each sliver has a plurality of user data blocks and one parity block. The RAIDset metadata has the RAIDset FE bit corresponding to each RAID protected user data block in the RAID array. The RAIDset FE bit indicates whether or not a corresponding RAID protected user data block contains true data. In addition, FE Dir bits corresponding to each block of FE bits for the device or the RAlDset are added to the metadata. Further the device FE bits, the RAIDset FE bits, the device FE Dir bits and the RAIDset FE Dir bits are in RAID protected blocks in a RAIDset sliver having RAIDset FE bit blocks. RAIDset FE Dir blocks, and a parity block.
摘要翻译：在RAID阵列上描述的元数据包括设备元数据和RAIDset元数据。设备元数据在每个存储设备上具有对应于存储设备上的每个RAID保护块的设备FE位。设备FE位指示相应的RAID保护块是否一致，从而可用于在相应的RAID保护块条中的另一个RAID保护块中重新生成数据。用户数据还具有强制错误位，以指示用户块中的物理块是否具有不一致的数据，即RAIDset FE位。存储设备的RAID阵列在每个存储设备上具有用户数据块，RAID被保护，通过在存储设备的RAID阵列上分布成块。每个条子具有多个用户数据块和一个奇偶校验块。 RAIDset元数据具有与RAID阵列中每个受RAID保护的用户数据块相对应的RAIDset FE位。 RAIDset FE位指示相应的RAID保护用户数据块是否包含真实数据。此外，对应于设备的每个FE位块或RA1Dset的FE Dir位被添加到元数据。此外，设备FE位，RAIDset FE位，设备FE Dir位和RAID组FE Dir位在具有RAIDset FE位块的RAIDset条中的RAID保护块中。 RAID组FE Dir块和奇偶校验块。

19. 发明授权

US5938776A Detection of SCSI devices at illegal locations 失效
标题翻译：在非法位置检测SCSI设备
公开(公告)号：US5938776A
公开(公告)日：1999-08-17
申请号：US883782
申请日：1997-06-27
申请人： Stephen J. Sicola , Bruce Sardeson , Frank M. Nemeth , Mike Hare , Brian Schow
发明人： Stephen J. Sicola , Bruce Sardeson , Frank M. Nemeth , Mike Hare , Brian Schow
IPC分类号： G06F13/14 , G06F11/22 , G06F13/00 , G06F11/00 , G06F13/40
CPC分类号： G06F11/22
摘要： In a SCSI subsystem having mixed wide and narrow SCSI devices installed, a method and apparatus is provided for detecting a narrow SCSI device illegally installed at a slot assigned to a wide SCSI device. To detect the narrow SCSI device installed at an illegal location, high ID and low ID SCSI bus address pairs are set as test pairs for the SCSI subsystem. The low ID is the alias of the high ID if a narrow SCSI device is installed at the high ID slot. To detect a conflict with a controller ID, a non-responsive ID bus address corresponding to a slot known to be unused is called. A response to this call indicates a narrow SCSI device is installed at the high ID of the test pair and the narrow SCSI device at the high ID has configured to an alias bus address matching the controller ID. To detect a present conflict between SCSI devices, the low ID bus address in the test pair is called. A conflict in responses indicates a SCSI device is installed at the low ID and a narrow SCSI device is installed at the high ID of the test pair. To detect a future conflict between a narrow SCSI device at a high ID and a SCSI device installed in the future at an unused low ID, both the low ID and the high ID are called. No response to the high ID call in combination with a response to the low ID call indicates a narrow SCSI device is installed at the high ID and the narrow SCSI device would conflict in the future with a SCSI device subsequently installed at the unused low ID.
摘要翻译：在安装了混合宽和窄SCSI设备的SCSI子系统中，提供了一种用于检测非法地安装在分配给宽SCSI设备的时隙的窄SCSI设备的方法和设备。为了检测安装在非法位置的窄SCSI设备，将高ID和低ID SCSI总线地址对设置为SCSI子系统的测试对。如果在高ID插槽上安装了窄SCSI设备，则低ID是高ID的别名。为了检测与控制器ID的冲突，调用对应于已知未使用的时隙的非响应ID总线地址。对该呼叫的响应表示在测试对的高ID处安装了窄SCSI设备，并且将高ID处的窄SCSI设备配置为与控制器ID匹配的别名总线地址。为了检测SCSI设备之间的当前冲突，调用测试对中的低ID总线地址。响应中的冲突表示SCSI设备以低ID安装，并且在测试对的高ID处安装了一个窄SCSI设备。为了检测高ID的窄SCSI设备与未来安装的未使用的低ID的SCSI设备之间的未来冲突，将调用低ID和高ID。对高ID呼叫的响应与对低ID呼叫的响应相结合表示在高ID处安装了窄SCSI设备，并且将来与窄SCSI设备将在随后安装在未使用的低ID处的SCSI设备冲突。

20. 发明授权

US5461588A Memory testing with preservation of in-use data 失效
标题翻译：内存测试，保存使用中的数据
公开(公告)号：US5461588A
公开(公告)日：1995-10-24
申请号：US340494
申请日：1994-11-15
申请人： Bruce A. Sardeson , Stephen J. Sicola
发明人： Bruce A. Sardeson , Stephen J. Sicola
IPC分类号： G06F11/10 , G11C29/52 , G11C7/00 , G11C29/00
CPC分类号： G06F11/1004 , G11C29/52
摘要： A method of testing a memory containing data being used by a processor uses a dedicated diagnostic test page (DTP) and diagnostic status page (DSP) in the memory under test to carry out the testing. The DTP is address-tested and pattern-tested first. Then, each page of the memory is in turn copied to the DTP, tested, and then restored from the DTP. During the test, the address of the page being tested is stored in the DSP along with a valid flag and an error detection code (EDC). A recovery procedure uses the information on the DSP to restore memory pages if the test is interrupted.
摘要翻译：测试由处理器使用的数据的存储器的方法使用被测存储器中的专用诊断测试页（DTP）和诊断状态页（DSP）进行测试。 DTP首先进行了地址测试和模式测试。然后，内存的每一页依次复制到DTP，测试，然后从DTP恢复。在测试期间，正在测试的页面的地址与有效标志和错误检测码（EDC）一起存储在DSP中。如果测试中断，恢复过程使用DSP上的信息来恢复内存页面。

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