公开(公告)号：WO99063442A1

公开(公告)日：1999-12-09

申请号：PCT/US1999/012534

申请日：1999-06-04

IPC: G06F3/06 ,  G06F11/20

CPC classification number: G06F11/201 ,  G06F3/061 ,  G06F3/0617 ,  G06F3/0635 ,  G06F3/0689

Abstract: System, apparatus and method for interconnecting computer devices define an interconnect topology maximizing performance and device availability in the event of a communication channel failure. Structure and method are particularly relevant and beneficial to a computer RAID disk interconnection topology for Fibre Channel connections to improve RAID array performance and data availability, but is not limited to such RAID systems, and other devices may be interconnected according to the structure and method of the invention. A topology having multiple dual-ported controllers configured in a tube topology is provided for a switchable configuration having a plurality of channels and a plurality of controllers arranged in a tube topology or structure. In the event of a channel failure for this structure, the load will be evenly distributed to the remaining controllers. One embodiment provides a data storage system having a plurality of storage devices each having first and second access ports, a plurality of communication channels, a controller controlling access by the plurality storage devices to the plurality of channels, where at least one of the devices is connected via the first access port to a first one of the channels and via the second access port to a second one of the channels, so that the one device may be accessed by the controller via either the first or second channel. Mathematical relationships between the minimum number of devices for an automatically balanced system and the number of channels are described.

Abstract translation: 用于互连计算机设备的系统，装置和方法定义了在通信信道故障的情况下最大化性能和设备可用性的互连拓扑。 结构和方法对于光纤通道连接的计算机RAID磁盘互连拓扑结构和方法是特别有用的，以提高RAID阵列性能和数据可用性，但不限于此类RAID系统，并且其他设备可以根据 本发明。 为具有多个通道的可切换配置和以管状拓扑结构排列的多个控制器提供具有配置在管状拓扑中的多个双端口控制器的拓扑结构。 如果此结构出现通道故障，负载将均匀分布到其余控制器。 一个实施例提供一种具有多个存储设备的数据存储系统，每个存储设备具有第一和第二接入端口，多个通信信道，控制多个存储设备对多个信道的接入的控制器，其中至少一个设备是 经由第一接入端口连接到第一通道，并且经由第二接入端口连接到第二通道，使得控制器可以经由第一或第二通道访问一个设备。 描述用于自动平衡系统的最小设备数量与通道数量之间的数学关系。

公开(公告)号：WO98049621A1

公开(公告)日：1998-11-05

申请号：PCT/US1998/008144

申请日：1998-04-22

IPC: G06F11/20

CPC classification number: G06F11/201 ,  G06F11/2005 ,  G06F11/2007 ,  G06F11/2012 ,  G06F11/2023 ,  G06F11/2038

Abstract: Methods and associated apparatus for using a redundant network communication path between networked redundant servers as a fallback communication path for control communications between such redundant servers. A primary control communication path (224) is dedicated between two redundant servers (200 and 210) for purposes of exchanging control and status information between redundant servers (200 and 210) in a networked client/server computing environment. A pair of network communication paths (120 and 122) between the redundant network servers (200 and 210) is used to assure reliable exchange of data among servers and networked clients. A first of the pair of network paths is referred to as the primary network (120) while the other is referred to as the standby network (122). Network connections are typically LAN or WAN connection media while control communication paths are typically RS232 or LAN connection media. Whereas prior architectures added a second control communication path to assure reliable exchange of control and status information between the redundant servers, the architecture of the present invention uses the standby network as a fallback control communication path in case of failure of the primary control communication path. Use of the standby network for fallback control communications obviates the need for a physically separate redundant control communication path which in turn reduces complexity and associated costs of the redundant servers.

Abstract translation: 用于在网络冗余服务器之间使用冗余网络通信路径的方法和相关设备作为用于控制这些冗余服务器之间的通信的回退通信路径。 为了在联网的客户机/服务器计算环境中的冗余服务器（200和210）之间交换控制和状态信息，主控制通信路径（224）专用于两个冗余服务器（200和210）。 冗余网络服务器（200和210）之间的一对网络通信路径（120和122）用于确保服务器和联网的客户端之间可靠的数据交换。 一对网络路径中的第一个被称为主网络（120），而另一个被称为备用网络（122）。 网络连接通常是LAN或WAN连接媒体，而控制通信路径通常为RS232或LAN连接媒体。 而现有架构增加了第二控制通信路径以确保在冗余服务器之间可靠地交换控制和状态信息，本发明的架构在主控通信路径故障的情况下将备用网络用作回退控制通信路径。 使用备用网络进行回退控制通信消除了对物理上分离的冗余控制通信路径的需要，这继而降低冗余服务器的复杂性和相关成本。

公开(公告)号：WO1994007196A1

公开(公告)日：1994-03-31

申请号：PCT/US1993008946

申请日：1993-09-21

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  SEFIDVASH, Khorvash ,  HASHEMI, Seyed, Hossein

IPC: G06F03/06

CPC classification number: G06F13/124 ,  G06F3/0601 ,  G06F11/201 ,  G06F11/2015 ,  G06F2003/0692

Abstract: A device interface module (8d) provides multiple concurrently operating data transfer channels between multiple groups (70) of peripheral devices and multiported buffer memory (24) which communicates via an interface bus (25) to other external modules (4) of a computer system.

Abstract translation: 设备接口模块（8d）在外围设备的多个组（70）和多端口缓冲存储器（24）之间提供多个同时操作的数据传输通道，其经由接口总线（25）与计算机系统的其它外部模块（4）进行通信 。

公开(公告)号：WO1991016711A1

公开(公告)日：1991-10-31

申请号：PCT/US1991002358

申请日：1991-04-05

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： STORAGE TECHNOLOGY CORPORATION ,  MILLIGAN, Charles, Allen ,  RUDESEAL, George, Arthur

IPC: G11B20/18

CPC classification number: G11B20/1833 ,  G06F3/0601 ,  G06F11/1008 ,  G06F11/1076 ,  G06F11/2007 ,  G06F11/201 ,  G06F11/2089 ,  G06F11/2094 ,  G06F2003/0692

Abstract: The parallel disk drive array data storage subsystem maps between virtual and physical data storage devices and schedules the writing of data to these devices. The data storage subsystem functions as a conventional large form factor disk drive memory, using an array of redundancy groups, each containing N+M disk drives. A performance improvement is obtained by eliminating redundancy data updates in the redundancy group by writing modified virtual track instances into previously emptied logical tracks and marking the data contained in the previous virtual track instance location as invalid. Logical cylinders containing a mixture of valid and invalid virtual tracks are emptied by writing all the valid virtual tracks into a previously emptied logical cylinder as a background process.

公开(公告)号：WO2013046253A1

公开(公告)日：2013-04-04

申请号：PCT/JP2011/005410

申请日：2011-09-27

Applicant: HITACHI, LTD. ,  SANO, Kazuhide ,  OKUMOTO, Katsuhiro

Inventor： SANO, Kazuhide ,  OKUMOTO, Katsuhiro

IPC: G06F11/14 ,  G06F11/20

CPC classification number: G06F11/2066 ,  G06F11/1443 ,  G06F11/201 ,  G06F11/2058 ,  G06F2201/855

Abstract: To inhibit the occurrence of communication failures in the system in which a secondary storage control apparatus acquires journal data from a primary storage control apparatus and writes the data to a secondary volume. The primary storage control apparatus comprises a command processing unit, a journal data creation unit,,a journal data transfer unit which reads journal data from a primary journal volume based on a journal data read request and transfers the read journal data to the secondary storage control apparatus, and a transfer control unit. In specified occasions, the transfer control unit controls at least either one of the journal data transfer amount by the journal data transfer unit and the width of the communication band utilized for journal data transfer.

Abstract translation: 为了抑制二次存储控制装置从主存储控制装置获取日志数据的系统中的通信失败的发生，并将数据写入二次卷。 主存储控制装置包括命令处理单元，日志数据创建单元，日志数据传送单元，其基于日志数据读取请求从主日志卷读取日志数据，并将读取的日志数据传送到辅助存储控制 装置和传送控制单元。 在特定情况下，传送控制单元通过日志数据传送单元控制日志数据传送量和用于日志数据传送的通信频带的宽度中的至少一个。

公开(公告)号：WO2012164616A1

公开(公告)日：2012-12-06

申请号：PCT/JP2011/003065

申请日：2011-05-31

Applicant: HITACHI, LTD. ,  TAKAOKA, Nobumitsu ,  IWASAKI, Masaaki ,  KODAMA, Shoji

Inventor： TAKAOKA, Nobumitsu ,  IWASAKI, Masaaki ,  KODAMA, Shoji

IPC: G06F3/06 ,  H04L29/08

CPC classification number: G06F11/3079 ,  G06F11/0712 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/0787 ,  G06F11/201 ,  G06F11/2015 ,  H04L41/0213 ,  H04L41/50 ,  H04L41/5035 ,  H04L67/1097 ,  H04L69/40

Abstract: If a failure occurs in physical resources constituting a virtual volume, a management server device is notified of information required by a user. A computer system includes a server device for managing a plurality of virtual volumes, a storage apparatus having a storage unit equipped with a plurality of storage devices, and a controller for controlling data input to, or output from, the storage unit, a management server device which is an access target of a user terminal, and an event management device for managing an event(s) generated by the server device or the storage apparatus, wherein when the event management device receives the event, it judges the content of the event and identifies a virtual volume to be affected by the event; and if a service level that should be satisfied by the identified virtual volume is defined for the identified virtual volume, the event management device identifies, based on the content of the received event, whether an incident in violation of the service level has occurred or not, and then notifies the management server device of the identified content as an event based on an event filter.

Abstract translation: 如果在构成虚拟卷的物理资源中发生故障，则向管理服务器设备通知用户所需的信息。 计算机系统包括用于管理多个虚拟卷的服务器设备，具有配备有多个存储设备的存储单元的存储设备和用于控制输入到存储单元或从存储单元输出的数据的控制器，管理服务器 作为用户终端的访问对象的装置，以及用于管理由服务器装置或存储装置生成的事件的事件管理装置，其中，当事件管理装置接收到事件时，判断事件的内容 并识别要受事件影响的虚拟卷; 并且如果为所识别的虚拟卷定义了所识别的虚拟卷应该满足的服务级别，则事件管理设备基于所接收的事件的内容来识别是否已经发生违反服务级别的事件 ，然后基于事件过滤器将所识别的内容通知给管理服务器设备作为事件。

公开(公告)号：WO2012064420A1

公开(公告)日：2012-05-18

申请号：PCT/US2011/054135

申请日：2011-09-30

Applicant: SYMANTEC CORPORATION

Inventor： VEMURI, Hari, Krishna ,  GOSAVI, Tushar, Ravindranath ,  GANDHI, Neha, Rajendraprasad

IPC: G06F11/20

CPC classification number: G06F11/2092 ,  G06F3/0613 ,  G06F3/0635 ,  G06F3/067 ,  G06F11/201

Abstract: Various systems and methods can discover asymmetric logical unit (LUN) access (ALU A) preferences and/or state transitions and use those preferences and/or state transitions to control how a host accesses a LUN in an ALUA array. One such method involves detecting a preferred controller for a LUN and then detecting that a current owner controller of the LUN is not the preferred controller. In response, the method can initiate an ownership change from the current owner controller to the preferred controller. Another method involves detecting an initial state of a first controller with respect to a LUN. The method then detects a subsequent state of the first controller with respect to the LUN subsequent to detecting the initial state. The method can then cause a computing device to access the LUN via a second controller, in response to the subsequent state not being the active optimized state.

Abstract translation: 各种系统和方法可以发现不对称逻辑单元（LUN）访问（ALU A）偏好和/或状态转换，并使用这些偏好和/或状态转换来控制主机如何访问ALUA阵列中的LUN。 一种这样的方法涉及检测用于LUN的优选控制器，然后检测LUN的当前所有者控制器不是优选控制器。 作为回应，该方法可以启动从当前所有者控制器到首选控制器的所有权更改。 另一种方法涉及检测第一控制器相对于LUN的初始状态。 然后该方法在检测到初始状态之后检测第一控制器相对于LUN的后续状态。 该方法然后可以使计算设备经由第二控制器访问LUN，以响应于后续状态不是活动优化状态。

公开(公告)号：WO2011042941A1

公开(公告)日：2011-04-14

申请号：PCT/JP2009/005302

申请日：2009-10-09

Applicant: HITACHI, LTD. ,  NAKAGAWA, Hirotaka ,  KANEKO, Satoshi

Inventor： NAKAGAWA, Hirotaka ,  KANEKO, Satoshi

IPC: G06F3/06 ,  G06F11/20

CPC classification number: G06F3/0635 ,  G06F3/0613 ,  G06F3/0617 ,  G06F3/067 ,  G06F11/2007 ,  G06F11/201 ,  G06F11/2071

Abstract: The present invention makes it possible to reassess respective host paths and reset priorities in accordance with the current state of a storage system. A management computer 400, in a case where either a failure or a configuration change occurs inside the storage system, assesses the respective host paths 501 through 506 in accordance with the status of a first communication network 500 and the status of a second communication network 600. The management computer 400, based on these assessment results, resets the priority of each host path. An alternate path program 112 of the host 100 are notified of the priorities, which have been set.

Abstract translation: 本发明使得可以根据存储系统的当前状态重新分配各个主机路径和重置优先级。 管理计算机400在存储系统内发生故障或配置改变的情况下，根据第一通信网络500的状态和第二通信网络600的状态来评估各自的主机路径501至506 管理计算机400基于这些评估结果重置每个主机路径的优先级。 向主机100的备用路径程序112通知所设定的优先级。

公开(公告)号：WO2011042939A1

公开(公告)日：2011-04-14

申请号：PCT/JP2009/005288

申请日：2009-10-09

Applicant: HITACHI, LTD. ,  TAKADA, Aritoki ,  NOMURA, Ken ,  TAKEUCHI, Tadashi ,  LE MOAL, Damien ,  MINE, Hiroshi

Inventor： TAKADA, Aritoki ,  NOMURA, Ken ,  TAKEUCHI, Tadashi ,  LE MOAL, Damien ,  MINE, Hiroshi

IPC: G06F3/06 ,  G06F11/34 ,  H04L12/24

CPC classification number: G06F3/0635 ,  G06F3/0617 ,  G06F3/067 ,  G06F11/1092 ,  G06F11/1662 ,  G06F11/2005 ,  G06F11/201 ,  G06F11/2094

Abstract: A plurality of storage devices are coupled with at least two switch of a switch network that is configured by a plurality of switches that transfer a packet that complies with an IP (Internet Protocol). Moreover, a storage control device is coupled with the switch network. The storage control device builds an LU (Logical Unit) that is utilized by a host device based on at least two storage devices that are coupled with different switches.

Abstract translation: 多个存储设备与交换机网络的至少两个交换机耦合，交换机网络由传送符合IP（互联网协议）的分组的多个交换机配置。 此外，存储控制装置与开关网络耦合。 存储控制设备构建由主机设备基于与不同交换机耦合的至少两个存储设备使用的LU（逻辑单元）。

公开(公告)号：WO2007057396A3

公开(公告)日：2007-08-09

申请号：PCT/EP2006068458

申请日：2006-11-14

Applicant: IBM ,  IBM UK ,  BENHASE MICHAEL THOMAS ,  CHEN JAMES CHIEN-CHIUNG ,  HUYNH MINH-NGOC LE ,  KLEIN STEVEN EDWARD

Inventor： BENHASE MICHAEL THOMAS ,  CHEN JAMES CHIEN-CHIUNG ,  HUYNH MINH-NGOC LE ,  KLEIN STEVEN EDWARD

IPC: G06F3/06 ,  G06F11/20 ,  H04L29/08

CPC classification number: H04L67/1097 ,  G06F11/201 ,  G06F11/2071 ,  G06F11/2089

Abstract: Provided are a method, system and program for selecting a path comprising ports on primary and secondary clusters to use to transmit data at a primary volume to a secondary volume. A request is received to copy data from a primary storage location to a secondary storage location. A determination is made from a plurality of primary clusters of an owner primary cluster for the primary storage location, wherein the primary clusters are configured to access the primary storage location. A determination is made as to whether there is at least one port on the owner primary cluster providing an available path to the secondary storage location. One port on the owner primary cluster is selected to use to copy the data to the secondary storage location in response to determining that there is at least one port on the owner primary cluster available to transmit to the secondary storage location.

Abstract translation: 提供了用于选择包括主要和次要群集上的端口以用于在主要卷上将数据传输到次要卷的路径的方法，系统和程序。 接收到将数据从主存储位置复制到辅助存储位置的请求。 根据主存储位置的所有者主集群的多个主集群进行确定，其中主集群被配置为访问主存储位置。 确定在所有者主群集上是否存在至少一个端口提供到辅助存储位置的可用路径。 响应于确定所有者主集群上存在至少一个可用于传输到辅助存储位置的端口，选择所有者主集群上的一个端口用于将数据复制到辅助存储位置。