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    • 81. 发明授权
    • Multisite replication with coordinated cycle switching
    • 具有协调循环切换的多站点复制
    • US08732124B1
    • 2014-05-20
    • US13429504
    • 2012-03-26
    • Dan ArnonDavid MeiriMark HalsteadBenjamin YoderOliver M. D. Shorey
    • Dan ArnonDavid MeiriMark HalsteadBenjamin YoderOliver M. D. Shorey
    • G06F17/30
    • G06F17/30578G06F11/00G06F11/1464
    • Handling asynchronous data provided by at least two sources includes synchronizing data between the at least two sources, coordinating cycle switching between the at least two sources, where an asynchronous cycle of data from one of the sources corresponds to an asynchronous cycle of data from an other one of the sources, receiving asynchronous data corresponding to a data cycle from at least one of the sources, and saving at least some of the received data. A first portion of data for a particular cycle may be transmitted from one of the sources and a second portion of data for the particular cycle, different from the first portion of data, may be transmitted from an other one of the sources and the first portion and the second portion together may correspond to all of the data for the particular cycle.
    • 处理由至少两个源提供的异步数据包括在至少两个源之间同步数据,协调至少两个源之间的周期切换,其中来自一个源的数据的异步周期对应于来自另一个源的数据的异步周期 其中一个源,从至少一个源接收对应于数据周期的异步数据,并且保存至少一些所接收的数据。 用于特定周期的数据的第一部分可以从源之一发送,并且与数据的第一部分不同的特定周期的第二数据部分可以从源中的另一个发送,并且第一部分 并且第二部分在一起可以对应于特定周期的所有数据。
    • 82. 发明授权
    • Write pacing
    • 写起搏
    • US07702871B1
    • 2010-04-20
    • US11897686
    • 2007-08-31
    • Dan ArnonDavid Meiri
    • Dan ArnonDavid Meiri
    • G06F12/00
    • G06F11/2066G06F3/0611G06F3/0614G06F3/0659G06F3/067G06F11/2074
    • A system for controlling the pacing of host data writes in response to changing system conditions allows for the use of variably controlled delays that facilitate asynchronous replication with bounded lag and smooth steady-state performance. Adding delay to the writes slows down the host and dampens activity spikes. A first storage device receives a write request, transmits data to a second storage device, and acknowledges the write request. An amount of additional write response time is controlled between when the write request is received and when the write request is acknowledged by the first storage device, where the amount of additional write response time is controlled according to system parameters including an amount of lag time between when the write request is received and when the write request is committed at the second storage device.
    • 用于控制主机数据写入的响应于系统条件变化的系统允许使用可变控制的延迟,其有助于具有有界滞后和平滑稳态性能的异步复制。 添加延迟写入会减慢主机并减少活动尖峰。 第一存储装置接收写请求,向第二存储装置发送数据,并确认写请求。 在写入请求被接收时和当第一存储设备确认写入请求之间时,控制附加的写入响应时间量,其中根据系统参数来控制附加的写入响应时间量,包括一个滞后时间量 当写入请求被接收时和在第二存储设备处提交写入请求时。
    • 84. 发明申请
    • Continuous backup to a remote storage device
    • 连续备份到远程存储设备
    • US20070168403A1
    • 2007-07-19
    • US11325078
    • 2006-01-03
    • David MeiriMagnus Bjornsson
    • David MeiriMagnus Bjornsson
    • G06F17/30
    • G06F11/1451G06F11/1461
    • Continuous backup from a local storage device to a remote storage device includes subdividing the local storage device into subsections, providing a time indicator that is modified periodically, and, in response to a request to write new data to a particular subsection of the local storage device at a particular time, maintaining at the remote storage device data being overwritten by the new data according to the particular subsection and according to a value of the indicator at the particular time. Providing continuous backup from a local storage device to a remote storage device may also include restoring the local storage device to a state thereof at a particular point in time by writing the maintained data to the remote storage device and transferring the data from the remote storage device to the local storage device.
    • 从本地存储设备到远程存储设备的连续备份包括将本地存储设备细分为子部分,提供定期修改的时间指示符,以及响应于向本地存储设备的特定子部分写入新数据的请求 在特定时间,在远程存储设备处的维护根据特定子部分根据特定时间的指示符的值覆盖新数据的数据。 提供从本地存储设备到远程存储设备的连续备份还可以包括通过将维护的数据写入到远程存储设备并从远程存储设备传送数据来将本地存储设备恢复到特定时间点的状态 到本地存储设备。
    • 86. 发明申请
    • Scanning a message-list
    • 扫描消息列表
    • US20050204000A1
    • 2005-09-15
    • US11083486
    • 2005-03-18
    • David MeiriDan ArnonMark HalsteadPeter Kamvysselis
    • David MeiriDan ArnonMark HalsteadPeter Kamvysselis
    • G06F15/16H04Q7/20
    • G06F15/16
    • A method for scanning a message-list accessible to a plurality of processors includes retrieving, from a cache associated with a scanning processor from the plurality of processors, information identifying a starting message-slot. This information is then used to begin a scan of the message-list at that starting message-slot. The information indicating the starting message-slot is obtained by identifying, in the message-list, a message-slot containing a message intended for a recipient processor from the plurality of processors and obtaining, from the identified message-slot, information indicative of a location of a succeeding message-slot in the message-list. This information is then cached, for retrieval during a subsequent scan of the message-list.
    • 用于扫描多个处理器可访问的消息列表的方法包括从多个处理器中的与扫描处理器相关联的高速缓存中检索标识起始消息时隙的信息。 然后,该信息用于开始在该起始消息时隙处的消息列表的扫描。 指示起始消息时隙的信息通过在消息列表中识别包含来自多个处理器的接收者处理器的消息的消息时隙来获得,并从所标识的消息时隙获得指示 消息列表中的后续消息时隙的位置。 然后将该信息缓存,以便在消息列表的后续扫描期间进行检索。
    • 89. 发明申请
    • Continuous backup using a mirror device
    • 使用镜像设备进行连续备份
    • US20070156982A1
    • 2007-07-05
    • US11324747
    • 2006-01-03
    • David MeiriMagnus Bjornsson
    • David MeiriMagnus Bjornsson
    • G06F12/16
    • G06F11/2064G06F11/1451G06F11/2074G06F12/0815G06F2201/855
    • Providing continuous backup of a storage device includes subdividing the storage device into subsections, providing a mirror device of the storage device that contains a copy of data that is on the storage device when the continuous backup is initiated, providing a time indicator that is modified periodically, and, in response to a request to write new data to a particular subsection of the storage device at a particular time, maintaining data being overwritten by the new data according to the particular subsection and according to a value of the indicator at the particular time, where, for a first write after the continuous backup is initiated, data from the mirror device is used to maintain data being overwritten. The subsections may be tracks. Maintaining the data being overwritten may include constructing a linked list of portions of data for each of the subsections. The portions of data may have variable sizes.
    • 提供存储设备的连续备份包括将存储设备细分为子部分,提供存储设备的反射镜设备,其在启动连续备份时包含存储设备上的数据副本,提供定期修改的时间指示符 并且响应于在特定时间向存储设备的特定子部分写入新数据的请求,根据特定子部分保持数据被新数据覆盖,并且根据特定时间的指标值 ,其中,对于在连续备份启动之后的第一次写入,来自镜像设备的数据用于维护被覆盖的数据。 小节可能是轨道。 维护被覆盖的数据可以包括为每个子部分构建数据部分的链接列表。 数据的部分可能具有可变大小。