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    PREVENTING NON-DETECTABLE DATA LOSS DURING SITE SWITCHOVER
    1.
    发明申请
    PREVENTING NON-DETECTABLE DATA LOSS DURING SITE SWITCHOVER 有权

    公开(公告)号：US20210294708A1

    公开(公告)日：2021-09-23

    申请号：US17341446

    申请日：2021-06-08

    Applicant: NetApp Inc.

    Inventor： Yong Cho ,  Prachi Deshmukh

    IPC: G06F11/20 ,  G06F11/14 ,  G06F3/06 ,  H04L29/08 ,  H04L29/14 ,  G06F11/16

    Abstract: Methods, systems, and computer program products for preventing non-detectable data loss during site switchover are disclosed. A computer-implemented method may include receiving a request to perform a switchover from a first node to a second node, determining whether to place a storage volume involved in the switchover in a suspended state, setting the storage volume in the suspended state based on determining that the storage volume is to be placed in the suspended state, and maintaining the storage volume in the suspended state after completing the switchover. In an example, the storage volume may be placed in a suspended state based on examining a volume-specific attribute indicating whether the storage volume is to be suspended when involved in a switchover. In one example, each storage volume involved in a switchover may be placed in a suspended state when indicated as part of a switchover request.

    Deferred replication of recovery information at site switchover
    2.
    发明授权
    Deferred replication of recovery information at site switchover 有权
    在站点切换时延迟恢复恢复信息

    公开(公告)号：US09280430B2

    公开(公告)日：2016-03-08

    申请号：US14276375

    申请日：2014-05-13

    Applicant: NetApp, Inc.

    Inventor： Parag Sarfare ,  Yong Cho ,  Tabriz Holtz ,  Anuja Jaiswal

    IPC: G06F11/00 ,  G06F11/20 ,  H04L29/08

    CPC classification number: G06F11/2069 ,  G06F11/1662 ,  G06F11/2023 ,  G06F11/2033 ,  G06F11/2035 ,  G06F11/2046 ,  G06F11/2048 ,  G06F11/2053 ,  G06F11/2056 ,  G06F11/2097 ,  G06F2201/82 ,  H04L67/1095 ,  H04L67/1097 ,  H04L69/40

    Abstract: Methods, systems, and computer program products for providing deferred replication of recovery information at site switchover are disclosed. A computer-implemented method may include receiving a first copy of logged data for storage volumes of a disaster recovery (DR) partner at a remote site from the DR partner, receiving a request to perform a site switchover from the remote site to the local site, receiving a second copy of logged data for the storage volumes from a local high availability (HA) partner in response to the switchover, and recovering the storage volumes locally by applying one or more of the copies of logged data to corresponding mirrored storage volumes at the local site.

    Abstract translation: 公开了用于在现场切换时提供恢复信息的延迟复制的方法，系统和计算机程序产品。 计算机实现的方法可以包括接收来自DR合作伙伴的远程站点处的灾难恢复（DR）伙伴的存储卷的记录数据的第一副本，接收执行从远程站点到本地站点的站点切换的请求 响应切换从本地高可用性（HA）合作伙伴接收用于存储卷的记录数据的第二副本，以及通过将一个或多个记录数据副本应用于相应的镜像存储卷来本地地恢复存储卷 当地网站。

    ONLINE DATA CONSISTENCY CHECKING IN A NETWORK STORAGE SYSTEM WITH OPTIONAL COMMITTAL OF REMEDIAL CHANGES
    5.
    发明申请
    ONLINE DATA CONSISTENCY CHECKING IN A NETWORK STORAGE SYSTEM WITH OPTIONAL COMMITTAL OF REMEDIAL CHANGES 有权
    在网络存储系统中进行在线数据一致性检查，并进行可选的修改后的修改

    公开(公告)号：US20140372832A1

    公开(公告)日：2014-12-18

    申请号：US14307372

    申请日：2014-06-17

    Applicant: NetApp, Inc.

    Inventor： Yong Cho ,  Maya Palem ,  Vignesh Sukumar ,  John K. Edwards ,  David Grunwald ,  Andy Kahn

    IPC: G06F11/10 ,  G06F17/30 ,  H04L29/08

    CPC classification number: G06F11/1076 ,  G06F17/3007 ,  H04L67/1097

    Abstract: A network storage server includes a tool for detecting and fixing errors while the network storage server remains online (available for servicing client requests), which includes enabling a user to approve or disapprove remedial changes before the changes are committed. The technique bypasses the usual consistency point process for new or modified data blocks representing potential remedial changes. At a consistency point, dirty data blocks representing the potential remedial changes are written to a change log file residing outside the volume. The modified data blocks are written in sequential order to logical blocks of the change log file. In response to a user input indicating that a potential change should be committed, the corresponding modified data blocks are read from the change log file in the order in which they were written to the change log file, and they are written to persistent storage in that order.

    Abstract translation: 网络存储服务器包括用于在网络存储服务器保持联机（可用于服务客户端请求）的情况下检测和修复错误的工具，其中包括使用户在更改发生之前批准或不批准补救更改。 该技术绕过代表潜在补救变化的新的或修改的数据块的通常一致性点过程。 在一致性点上，将表示潜在补救措施更改的脏数据块写入驻留在卷外的更改日志文件。 经修改的数据块按顺序写入变更日志文件的逻辑块。 响应于指示应该提交潜在变化的用户输入，从更改日志文件中读取相应的修改后的数据块，并将它们写入到更改日志文件中，并将它们写入永久存储器 订购。

    Preventing non-detectable data loss during site switchover
    6.
    发明授权
    Preventing non-detectable data loss during site switchover 有权

    公开(公告)号：US10223223B2

    公开(公告)日：2019-03-05

    申请号：US15165033

    申请日：2016-05-26

    Applicant: NetApp Inc.

    Inventor： Yong Cho ,  Prachi Deshmukh

    IPC: G06F11/20 ,  H04L29/08 ,  H04L29/14 ,  G06F3/06 ,  G06F11/16

    Abstract: Methods, systems, and computer program products for preventing non-detectable data loss during site switchover are disclosed. A computer-implemented method may include receiving a request to perform a switchover from a first node to a second node, determining whether to place a storage volume involved in the switchover in a suspended state, setting the storage volume in the suspended state based on determining that the storage volume is to be placed in the suspended state, and maintaining the storage volume in the suspended state after completing the switchover. In an example, the storage volume may be placed in a suspended state based on examining a volume-specific attribute indicating whether the storage volume is to be suspended when involved in a switchover. In one example, each storage volume involved in a switchover may be placed in a suspended state when indicated as part of a switchover request.

    PREVENTING NON-DETECTABLE DATA LOSS DURING SITE SWITCHOVER
    7.
    发明申请
    PREVENTING NON-DETECTABLE DATA LOSS DURING SITE SWITCHOVER 审中-公开
    防止站点切换期间无法检测的数据丢失

    公开(公告)号：US20160266991A1

    公开(公告)日：2016-09-15

    申请号：US15165033

    申请日：2016-05-26

    Applicant: NetApp Inc.

    Inventor： Yong Cho ,  Prachi Deshmukh

    IPC: G06F11/20 ,  G06F11/16 ,  G06F3/06

    CPC classification number: G06F11/2094 ,  G06F3/0619 ,  G06F3/0634 ,  G06F3/0635 ,  G06F3/0659 ,  G06F3/067 ,  G06F11/1662 ,  G06F11/20 ,  G06F11/2035 ,  G06F11/2046 ,  G06F11/2069 ,  G06F11/2071 ,  G06F11/2097 ,  G06F2201/805 ,  G06F2201/82 ,  G06F2212/1032 ,  G06F2212/163 ,  G06F2212/263 ,  H04L29/08 ,  H04L67/1097 ,  H04L69/40

    Abstract: Methods, systems, and computer program products for preventing non-detectable data loss during site switchover are disclosed. A computer-implemented method may include receiving a request to perform a switchover from a first node to a second node, determining whether to place a storage volume involved in the switchover in a suspended state, setting the storage volume in the suspended state based on determining that the storage volume is to be placed in the suspended state, and maintaining the storage volume in the suspended state after completing the switchover. In an example, the storage volume may be placed in a suspended state based on examining a volume-specific attribute indicating whether the storage volume is to be suspended when involved in a switchover. In one example, each storage volume involved in a switchover may be placed in a suspended state when indicated as part of a switchover request.

    Abstract translation: 公开了用于在站点切换期间防止不可检测的数据丢失的方法，系统和计算机程序产品。 计算机实现的方法可以包括接收执行从第一节点切换到第二节点的请求，确定是否将切换中涉及的存储卷放置在暂停状态，基于确定将所述存储卷设置为暂停状态 存储卷将处于挂起状态，并在完成切换后将存储卷保持在挂起状态。 在一个示例中，存储卷可以基于检查特定于卷的属性而被置于暂停状态，该特定属性指示当参与切换时是否暂停存储卷。 在一个示例中，当切换请求的一部分被指示时，切换中涉及的每个存储卷可以被置于暂停状态。

    Preventing non-detectable data loss during site switchover
    8.
    发明授权
    Preventing non-detectable data loss during site switchover 有权
    防止站点切换期间不可检测的数据丢失

    公开(公告)号：US09389968B2

    公开(公告)日：2016-07-12

    申请号：US14265592

    申请日：2014-04-30

    Applicant: NetApp, Inc.

    Inventor： Yong Cho ,  Prachi Deshmukh

    IPC: G06F11/20 ,  H04L29/08 ,  H04L29/14

    CPC classification number: G06F11/2094 ,  G06F3/0619 ,  G06F3/0634 ,  G06F3/0635 ,  G06F3/0659 ,  G06F3/067 ,  G06F11/1662 ,  G06F11/20 ,  G06F11/2035 ,  G06F11/2046 ,  G06F11/2069 ,  G06F11/2071 ,  G06F11/2097 ,  G06F2201/805 ,  G06F2201/82 ,  G06F2212/1032 ,  G06F2212/163 ,  G06F2212/263 ,  H04L29/08 ,  H04L67/1097 ,  H04L69/40

    Abstract: Methods, systems, and computer program products for preventing non-detectable data loss during site switchover are disclosed. A computer-implemented method may include receiving a request to perform a switchover from a first node to a second node, determining whether to place a storage volume involved in the switchover in a suspended state, setting the storage volume in the suspended state based on determining that the storage volume is to be placed in the suspended state, and maintaining the storage volume in the suspended state after completing the switchover. In an example, the storage volume may be placed in a suspended state based on examining a volume-specific attribute indicating whether the storage volume is to be suspended when involved in a switchover. In one example, each storage volume involved in a switchover may be placed in a suspended state when indicated as part of a switchover request.

    Abstract translation: 公开了用于在站点切换期间防止不可检测的数据丢失的方法，系统和计算机程序产品。 计算机实现的方法可以包括接收执行从第一节点切换到第二节点的请求，确定是否将切换中涉及的存储卷放置在暂停状态，基于确定将所述存储卷设置为暂停状态 存储卷将处于挂起状态，并在完成切换后将存储卷保持在挂起状态。 在一个示例中，存储卷可以基于检查特定于卷的属性而被置于暂停状态，该特定属性指示当参与切换时是否暂停存储卷。 在一个示例中，当切换请求的一部分被指示时，切换中涉及的每个存储卷可以被置于暂停状态。

    Deferred Replication of Recovery Information At Site Switchover
    9.
    发明申请
    Deferred Replication of Recovery Information At Site Switchover 有权
    在站点切换时延迟复制恢复信息

    公开(公告)号：US20150331766A1

    公开(公告)日：2015-11-19

    申请号：US14276375

    申请日：2014-05-13

    Applicant: NetApp, Inc.

    Inventor： Parag Sarfare ,  Yong Cho ,  Tabriz Holtz ,  Anuja Jaiswal

    IPC: G06F11/20 ,  H04L29/08

    CPC classification number: G06F11/2069 ,  G06F11/1662 ,  G06F11/2023 ,  G06F11/2033 ,  G06F11/2035 ,  G06F11/2046 ,  G06F11/2048 ,  G06F11/2053 ,  G06F11/2056 ,  G06F11/2097 ,  G06F2201/82 ,  H04L67/1095 ,  H04L67/1097 ,  H04L69/40

    Abstract: Methods, systems, and computer program products for providing deferred replication of recovery information at site switchover are disclosed. A computer-implemented method may include receiving a first copy of logged data for storage volumes of a disaster recovery (DR) partner at a remote site from the DR partner, receiving a request to perform a site switchover from the remote site to the local site, receiving a second copy of logged data for the storage volumes from a local high availability (HA) partner in response to the switchover, and recovering the storage volumes locally by applying one or more of the copies of logged data to corresponding mirrored storage volumes at the local site.

    Abstract translation: 公开了用于在现场切换时提供恢复信息的延迟复制的方法，系统和计算机程序产品。 计算机实现的方法可以包括接收来自DR合作伙伴的远程站点处的灾难恢复（DR）伙伴的存储卷的记录数据的第一副本，接收执行从远程站点到本地站点的站点切换的请求 响应切换从本地高可用性（HA）合作伙伴接收用于存储卷的记录数据的第二副本，以及通过将一个或多个记录数据副本应用于相应的镜像存储卷来本地地恢复存储卷 当地网站。

    Preventing non-detectable data loss during site switchover
    10.
    发明授权
    Preventing non-detectable data loss during site switchover 有权

    公开(公告)号：US11036600B2

    公开(公告)日：2021-06-15

    申请号：US16281755

    申请日：2019-02-21

    Applicant: NetApp Inc.

    Inventor： Yong Cho ,  Prachi Deshmukh

    IPC: G06F11/20 ,  H04L29/08 ,  H04L29/14 ,  G06F3/06 ,  G06F11/16

    Abstract: Methods, systems, and computer program products for preventing non-detectable data loss during site switchover are disclosed. A computer-implemented method may include receiving a request to perform a switchover from a first node to a second node, determining whether to place a storage volume involved in the switchover in a suspended state, setting the storage volume in the suspended state based on determining that the storage volume is to be placed in the suspended state, and maintaining the storage volume in the suspended state after completing the switchover. In an example, the storage volume may be placed in a suspended state based on examining a volume-specific attribute indicating whether the storage volume is to be suspended when involved in a switchover. In one example, each storage volume involved in a switchover may be placed in a suspended state when indicated as part of a switchover request.

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