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    • 31. 发明授权
    • Methods and apparatus for forwarding access requests in a content addressable computer system
    • 在内容可寻址计算机系统中转发访问请求的方法和装置
    • US07428611B1
    • 2008-09-23
    • US10837311
    • 2004-04-30
    • Stephen J. ToddMichael Kilian
    • Stephen J. ToddMichael Kilian
    • G06F12/00
    • H04L67/1097G06F11/2074G06F11/2076G06F11/2087
    • Embodiments of the present invention are directed to a method and apparatus for receiving an input/output (I/O) request from a host computer that specifies an operation to be performed on a content addressable storage (CAS) system and determining which operation is specified by the request before receipt of the I/O request by a content addressable storage system. In another embodiment, an I/O request from a host computer is received by a first CAS which determines if the request is to be processed by another CAS system. When it is determined that the request is to be processed by another CAS system, the first CAS system may forward the request to the other CAS system. In another embodiment, an appliance receives an I/O request from a host computer to perform an operation that accesses a unit of content. The appliance may set up a communication session between the host and a CAS system so that the unit of content may be transmitted between the host and the CAS system without passing through the appliance.
    • 本发明的实施例涉及一种用于从主计算机接收指定要对内容可寻址存储(CAS)系统执行的操作并确定指定了哪个操作的输入/输出(I / O)请求的方法和装置 通过内容可寻址存储系统接收到I / O请求之前的请求。 在另一实施例中,来自主计算机的I / O请求由第一CAS接收,其确定该请求是否由另一CAS系统处理。 当确定请求由另一个CAS系统处理时,第一个CAS系统可以将该请求转发给另一个CAS系统。 在另一个实施例中,设备从主计算机接收I / O请求以执行访问内容单元的操作。 设备可以在主机和CAS系统之间建立通信会话,使得可以在主机和CAS系统之间传送内容单元而不通过设备。
    • 32. 发明申请
    • Methods and apparatus for conversion of content
    • 内容转换的方法和装置
    • US20070276789A1
    • 2007-11-29
    • US11438770
    • 2006-05-23
    • Kaleb KeithleyJiri SchindlerJonathan B. HallMichael KilianStephen J. Todd
    • Kaleb KeithleyJiri SchindlerJonathan B. HallMichael KilianStephen J. Todd
    • G06F17/30
    • G06F16/258
    • In one embodiment of the invention, a utility may be installed (e.g., by a system administrator) on a storage system. The utility may read content units on the storage system that are stored in one data format, and convert the content units to a second data format. In one embodiment, in response to a read request for a content unit, a data format in which to return the content unit may be selected and the content unit may be returned in that data format. In another embodiment, mapping information may be created that specifies in which data format a content unit should be returned in response to a request for the content unit. The mapping information may be stored either on the storage system that stores the content unit, the computer requesting access to the content unit, or any other computer or device in the computer system.
    • 在本发明的一个实施例中,可以在存储系统上安装实用程序(例如由系统管理员)。 实用程序可以读取以一种数据格式存储的存储系统上的内容单元,并将内容单元转换为第二数据格式。 在一个实施例中,响应于对内容单元的读取请求,可以选择其中返回内容单元的数据格式,并且可以以该数据格式返回内容单元。 在另一个实施例中,可以创建映射信息,该映射信息指定响应于对内容单元的请求而应当返回内容单元的哪个数据格式。 映射信息可以存储在存储内容单元的存储系统上,请求访问内容单元的计算机或计算机系统中的任何其他计算机或设备。
    • 34. 发明授权
    • Methods and apparatus for indirectly identifying a retention period for data in a storage system
    • 用于间接识别存储系统中数据的保留期限的方法和装置
    • US07801920B2
    • 2010-09-21
    • US10762036
    • 2004-01-21
    • Stephen J. ToddMichael Kilian
    • Stephen J. ToddMichael Kilian
    • G06F17/30
    • G06F17/30085G06F17/30312
    • One embodiment is a method and apparatus for modifying retention periods in a storage system, in which previously defined retention periods for units of data may be reduced. In another embodiment, the retention period of a unit of data may be modified in response to the occurrence of an event by renewing previously defined retention periods until the occurrence of the event is detected. If the occurrence of the event is detected, a retention period associated with that event may be established for the unit of data. In yet another embodiment, retention classes are used to define retention periods for units of data so that the retention period of a unit of data may be modified without modifying the unit of data itself. In a further embodiment, a request to the storage system to reduce a retention period includes authentication information that the storage system may use to verify the request.
    • 一个实施例是用于修改存储系统中的保留周期的方法和装置,其中可以减少用于数据单元的先前定义的保留期。 在另一个实施例中,可以通过更新先前定义的保留时段来响应于事件的发生来修改数据单元的保留期,直到检测到事件的发生。 如果检测到事件的发生,则可以针对数据单元建立与该事件相关联的保留期。 在另一个实施例中,保留类别用于定义数据单元的保留期,使得可以在不修改数据单元本身的情况下修改数据单元的保留期。 在另一实施例中,对存储系统的减少保留期限的请求包括存储系统可用于验证请求的认证信息。
    • 35. 发明授权
    • Methods and apparatus for transferring data in a content addressable computer system
    • 用于在内容可寻址计算机系统中传送数据的方法和装置
    • US07240151B1
    • 2007-07-03
    • US10836502
    • 2004-04-30
    • Stephen J. ToddMichael Kilian
    • Stephen J. ToddMichael Kilian
    • G06F12/00
    • G06F17/30109G06F11/2071G11C15/00
    • Embodiments of the present invention are directed to a method and apparatus for receiving an input/output (I/O) request from a host computer that specifies an operation to be performed on a content addressable storage (CAS) system and determining which operation is specified by the request before receipt of the I/O request by a content addressable storage system. In another embodiment, an I/O request from a host computer is received by a first CAS which determines if the request is to be processed by another CAS system. When it is determined that the request is to be processed by another CAS system, the first CAS system may forward the request to the other CAS system. In another embodiment, an appliance receives an I/O request from a host computer to perform an operation that accesses a unit of content. The appliance may set up a communication session between the host and a CAS system so that the unit of content may be transmitted between the host and the CAS system without passing through the appliance.
    • 本发明的实施例涉及一种用于从主计算机接收指定要对内容可寻址存储(CAS)系统执行的操作并确定指定了哪个操作的输入/输出(I / O)请求的方法和装置 通过内容可寻址存储系统接收到I / O请求之前的请求。 在另一实施例中,来自主计算机的I / O请求由第一CAS接收,其确定该请求是否由另一CAS系统处理。 当确定请求由另一个CAS系统处理时,第一个CAS系统可以将该请求转发给另一个CAS系统。 在另一个实施例中,设备从主计算机接收I / O请求以执行访问内容单元的操作。 设备可以在主机和CAS系统之间建立通信会话,使得可以在主机和CAS系统之间传送内容单元而不通过设备。
    • 36. 发明授权
    • Methods and apparatus for processing access requests in a content addressable computer system
    • 用于处理内容可寻址计算机系统中的访问请求的方法和装置
    • US07240150B1
    • 2007-07-03
    • US10836415
    • 2004-04-30
    • Stephen J. ToddMichael Kilian
    • Stephen J. ToddMichael Kilian
    • G06F12/00
    • G06F17/30067
    • Embodiments of the present invention are directed to a method and apparatus for receiving an input/output (I/O) request from a host computer that specifies an operation to be performed on a content addressable storage (CAS) system and determining which operation is specified by the request before receipt of the I/O request by a content addressable storage system. In another embodiment, an I/O request from a host computer is received by a first CAS which determines if the request is to be processed by another CAS system. When it is determined that the request is to be processed by another CAS system, the first CAS system may forward the request to the other CAS system. In another embodiment, an appliance receives an I/O request from a host computer to perform an operation that accesses a unit of content. The appliance may set up a communication session between the host and a CAS system so that the unit of content may be transmitted between the host and the CAS system without passing through the appliance.
    • 本发明的实施例涉及一种用于从主计算机接收指定要对内容可寻址存储(CAS)系统执行的操作并确定指定了哪个操作的输入/输出(I / O)请求的方法和装置 通过内容可寻址存储系统接收到I / O请求之前的请求。 在另一实施例中,来自主计算机的I / O请求由第一CAS接收,其确定该请求是否由另一CAS系统处理。 当确定请求由另一个CAS系统处理时,第一个CAS系统可以将该请求转发给另一个CAS系统。 在另一个实施例中,设备从主计算机接收I / O请求以执行访问内容单元的操作。 设备可以在主机和CAS系统之间建立通信会话,使得可以在主机和CAS系统之间传送内容单元而不通过设备。
    • 39. 发明授权
    • Replicating data across multiple copies of a table in a database system
    • 在数据库系统中的表的多个副本上复制数据
    • US09244996B2
    • 2016-01-26
    • US11771801
    • 2007-06-29
    • Serge BourbonnaisElizabeth B. HamelBruce G. LindsayStephen J. Todd
    • Serge BourbonnaisElizabeth B. HamelBruce G. LindsayStephen J. Todd
    • G06F17/30
    • G06F17/30578G06F17/30345Y10S707/99938
    • A mechanism for handling transaction messages in asynchronous data replication in a database system, in which the database system includes a source node and a target node, and each transaction message has information concerning a row change to a table copy at the source node. The mechanism determines whether a first transaction message has a dependency on a preceding non-completed transaction message. Responsive to the first transaction message having a dependency on the preceding non-completed transaction, the mechanism holds the first transaction message, completes the preceding non-completed transaction message including applying the row change associated with the preceding non-completed transaction message to the table copy at the target node, and responsive to completing the preceding non-completed transaction message, releases the first transaction message and applying the row change associated with the first transaction message to the table copy at the target node.
    • 用于在数据库系统中处理异步数据复制中的事务消息的机制,其中数据库系统包括源节点和目标节点,并且每个事务消息具有关于在源节点处的表副本的行更改的信息。 该机制确定第一事务消息是否具有对先前未完成的事务消息的依赖性。 响应于对先前未完成的事务具有依赖性的第一交易消息,该机制保持第一交易消息,完成前述未完成的交易消息,包括将与先前未完成的交易消息相关联的行变更应用于表 在目标节点处的副本,并且响应于完成上述未完成的交易消息,释放第一交易消息并将与第一交易消息相关联的行变更应用于目标节点处的表副本。