METHODS AND APPARATUS FOR MANAGING DATA FLOW IN A CONTINUOUS DATA REPLICATION SYSTEM HAVING JOURNALING
    2.
    发明申请
    METHODS AND APPARATUS FOR MANAGING DATA FLOW IN A CONTINUOUS DATA REPLICATION SYSTEM HAVING JOURNALING 有权
    在连续数据复制系统中管理数据流的方法和装置

    公开(公告)号:US20080082591A1

    公开(公告)日:2008-04-03

    申请号:US11536160

    申请日:2006-09-28

    IPC分类号: G06F17/30

    摘要: Method and apparatus to provide a data replication system to receive a data transfer request from a first component at a transmitter module in a continuous data replication system having a production site and a backup site, the production site having a transmitter module and a transmitter credit mechanism, the transmitter module to transmit data over a network for replication in the backup site, detect a high-load condition at the transmitter module, and modify a flow of credits from the transmitter credit mechanism to the first component to reduce or stop data flow to the transmitter module.

    摘要翻译: 一种提供数据复制系统的方法和装置,用于在具有生产现场和备用站点的连续数据复制系统中的发射机模块处的第一组件接收数据传输请求,所述生产现场具有发射机模块和发射机信用机制 ,所述发射机模块通过网络传输数据以在所述备份站点中复制,检测所述发射机模块处的高负载状况,并将所述信用流从所述发射机信用机制修改为所述第一组件以减少或停止数据流到 发射机模块。

    Inverse star replication
    3.
    发明授权

    公开(公告)号:US09910739B1

    公开(公告)日:2018-03-06

    申请号:US13077262

    申请日:2011-03-31

    IPC分类号: G06F11/14 G06F11/20

    摘要: A method, system and computer program product for enabling a virtual service layer to consume a storage medium at a first site and map the storage medium as one or more virtual storage volumes, enabling the virtual service layer to present the one or more virtual storage volumes for consumption at the first site, enabling a splitter of the virtual service layer to intercept I/O written to the one or more virtual storage volumes, splitting intercepted I/O to a journal based replication appliance, enabling the virtual storage volumes to be accessible at a second site, wherein the one or more the virtual storage volume are mirrored at the second site by the virtual service layer; and replicating IO from either the first site or the second site to a third site.

    Method and apparatus for replicating the punch command
    5.
    发明授权
    Method and apparatus for replicating the punch command 有权
    复制打孔指令的方法和装置

    公开(公告)号:US08996461B1

    公开(公告)日:2015-03-31

    申请号:US13073215

    申请日:2011-03-28

    IPC分类号: G06F17/30 G06F21/60

    摘要: The punch command may be replicated in a replication environment including a production site and a replication site. The solution includes implementing a punch command to free storage received at a replication site in a replication environment by applying the punch command to storage at the replication site and writing data being freed from the storage at the replication site to an undo stream of a journal at the replication site. If the punch command is not supported, a command to write zeros may be used. Further, an unpunch command is provided for properly undoing a punch command and storing data written to the volume before the punch command freed the storage. Additionally, large punch commands may be split into a plurality to smaller punch commands for efficient journal management. Additionally, volume space may be reclaimed by writing a punch command to the journal instead of zeros.

    摘要翻译: 打印命令可以在包括生产站点和复制站点的复制环境中复制。 该解决方案包括实施打孔命令以通过将复制站点上的打包命令应用于复制站点处的存储并将从复制站点上的存储器释放的数据写入到日志的撤消流来释放在复制环境中的复制站点处接收到的存储 复制站点。 如果不支持punch命令,则可以使用写入零的命令。 此外,提供了一个非打开命令,用于在打孔命令释放存储之前适当地撤销打孔命令并存储写入卷的数据。 此外,大的冲头命令可以被分成多个到较小的冲头命令,用于有效的日志管理。 另外,可以通过将punch命令写入日志而不是零来回收卷空间。

    Replicating key-value pairs in a continuous data protection system
    6.
    发明授权
    Replicating key-value pairs in a continuous data protection system 有权
    在连续数据保护系统中复制键值对

    公开(公告)号:US08949180B1

    公开(公告)日:2015-02-03

    申请号:US13535865

    申请日:2012-06-28

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30587 G06F17/30575

    摘要: In one aspect, a method to replicate a key-value pair includes intercepting a command to update a key-value pair in a key-value pair database, the key-value database comprising metadata of a virtual volume, sending an updated key-value pair to a data protection appliance, receiving an acknowledgement that the data protection appliance received the updated key-value pair and updating the key-value pair in the key-value database after the acknowledgement is received.

    摘要翻译: 一方面,一种复制密钥值对的方法包括拦截用于更新密钥对对数据库中的密钥值对的命令,所述密钥值数据库包括虚拟卷的元数据,发送更新的密钥值 与数据保护设备配对,在接收到确认之后,接收到数据保护设备接收到更新的密钥对对的确认,并更新密钥值数据库中的密钥 - 值对。

    Journal-based replication without journal loss
    7.
    发明授权
    Journal-based replication without journal loss 有权
    基于日志的复制,无日记损失

    公开(公告)号:US08898409B1

    公开(公告)日:2014-11-25

    申请号:US13534422

    申请日:2012-06-27

    IPC分类号: G06F12/16

    CPC分类号: G06F12/16 G06F11/00

    摘要: In one aspect, a method includes performing a failover in a journal-based replication system and performing a failback in the journal-based replication system without loss to journaling. In another aspect, an article includes a non-transitory machine-readable medium that stores executable instructions. The instructions cause a machine to perform a failover in a journal-based replication system and perform a failback in the journal-based replication system without loss to journaling. In a further aspect, an apparatus includes circuitry configured to perform a failover in a journal-based replication system and perform a failback in the journal-based replication system without loss to journaling.

    摘要翻译: 在一个方面,一种方法包括在基于日志的复制系统中执行故障切换,并在基于日志的复制系统中执行故障恢复,而不会损失日志记录。 在另一方面,一种物品包括存储可执行指令的非暂时机器可读介质。 这些说明使机器在基于日志的复制系统中执行故障切换,并在基于日志的复制系统中执行故障回复,而不会损失日志记录。 在另一方面,一种装置包括经配置以在基于日志的复制系统中执行故障切换并在基于日志的复制系统中执行故障恢复而不损失日志记录的电路。

    Creating consistent snapshots across several storage arrays or file systems
    8.
    发明授权
    Creating consistent snapshots across several storage arrays or file systems 有权
    在多个存储阵列或文件系统上创建一致的快照

    公开(公告)号:US08706700B1

    公开(公告)日:2014-04-22

    申请号:US12977251

    申请日:2010-12-23

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30088

    摘要: A method, system, and program product for implementing consistent snapshots in a replication environment, the replication environment having a production site having a splitter, and a storage media the method comprising, selecting a set of media from the storage medium, creating a consistency group of the selected set of storage media, creating a journal at the production site, splitting I/O to the consistency group, and recording the split I/O in the journal.

    摘要翻译: 一种用于在复制环境中实现一致的快照的方法,系统和程序产品,所述复制环境具有生产站点具有分离器,以及存储介质,所述方法包括:从所述存储介质中选择一组介质,创建一致性组 的所选集合的存储介质,在生产站点创建日志,将I / O分割为一致性组,并将分割I / O记录在日志中。

    Scaleout replication of an application
    9.
    发明授权
    Scaleout replication of an application 有权
    应用程序的Scaleout复制

    公开(公告)号:US09336094B1

    公开(公告)日:2016-05-10

    申请号:US13614104

    申请日:2012-09-13

    摘要: In one aspect, a method includes determining that a first quorum of servers is available at a production site and a target site and generating a group-set bookmark if the first quorum of servers is available. In another aspect, an article includes a non-transitory machine-readable medium that stores executable instructions. The instructions cause a machine to determine that a first quorum of servers is available at a production site and a target site and generate a group-set bookmark if the first quorum of servers is available. In a further aspect, an apparatus includes circuitry configured to determine that a first quorum of servers is available at a production site and a target site; and generate a group -set bookmark if the first quorum of servers available.

    摘要翻译: 一方面,一种方法包括确定服务器的第一法定数量在生产站点和目标站点是可用的,并且如果第一法定服务器可用,则生成组集合书签。 在另一方面,一种物品包括存储可执行指令的非暂时机器可读介质。 这些说明使机器确定在生产站点和目标站点可以使用第一个服务器的数量,并在服务器的第一个仲裁数量可用的情况下生成一个组集书签。 在另一方面,一种装置包括被配置为确定服务器的第一法定数量在生产现场和目标站点可用的电路; 并且如果服务器的第一个仲裁可用,则生成一个组集合书签。