REDUNDANT SYSTEM AND REDUNDANCY METHOD
    161.
    发明申请
    REDUNDANT SYSTEM AND REDUNDANCY METHOD 有权
    冗余系统和冗余方法

    公开(公告)号:US20150370664A1

    公开(公告)日:2015-12-24

    申请号:US14721137

    申请日:2015-05-26

    Abstract: When the redundant system operates the second node in place of the first node in the primary system and transmits, to the secondary system, data update information generated according to a data update in the second node, the fourth node the data update information generated according to the data update in the second node from the second node using the second inter-system transfer path. The fourth node changes by changing a direction of the second intra-system transfer, a configuration by which the data update information acquired by the fourth node is acquired by the third node using the second inter-system transfer path.

    Abstract translation: 当冗余系统操作第二节点代替主系统中的第一节点时,向第二系统发送根据第二节点中的数据更新生成的数据更新信息,第四节点根据根据第二节点生成的数据更新信息 使用第二系统间传输路径从第二节点在第二节点中的数据更新。 第四节点通过改变第二系统内传送的方向而改变,第三节点使用第二系统间传送路径获取由第四节点获取的数据更新信息的配置。

    MECHANISM FOR PERSISTING MESSAGES IN A STORAGE SYSTEM
    162.
    发明申请
    MECHANISM FOR PERSISTING MESSAGES IN A STORAGE SYSTEM 审中-公开
    存储系统中消息的机制

    公开(公告)号:US20150355970A1

    公开(公告)日:2015-12-10

    申请号:US14679367

    申请日:2015-04-06

    Abstract: A plurality of storage nodes in a single chassis is provided. The plurality of storage nodes in the single chassis is configured to communicate together as a storage cluster. Each of the plurality of storage nodes includes nonvolatile solid-state memory for user data storage. The plurality of storage nodes is configured to distribute the user data and metadata associated with the user data throughout the plurality of storage nodes such that the plurality of storage nodes maintain the ability to read the user data, using erasure coding, despite a loss of two of the plurality of storage nodes. The plurality of storage nodes configured to initiate an action based on the redundant copies of the metadata, responsive to achieving a level of redundancy for the redundant copies of the metadata. A method for accessing user data in a plurality of storage nodes having nonvolatile solid-state memory is also provided.

    Abstract translation: 提供了单个机箱中的多个存储节点。 单个机箱中的多个存储节点被配置为一起作为存储集群通信。 多个存储节点中的每一个包括用于用户数据存储的非易失性固态存储器。 多个存储节点被配置为在整个多个存储节点中分配与用户数据相关联的用户数据和元数据,使得多个存储节点使用擦除编码保持读取用户数据的能力,尽管丢失了两个 的多个存储节点。 多个存储节点被配置为基于元数据的冗余副本来发起动作,响应于实现元数据的冗余副本的冗余级别。 还提供了一种用于访问具有非易失性固态存储器的多个存储节点中的用户数据的方法。

    Rolling cache configuration for a data replication system
    163.
    发明授权
    Rolling cache configuration for a data replication system 有权
    数据复制系统的滚动缓存配置

    公开(公告)号:US09208210B2

    公开(公告)日:2015-12-08

    申请号:US14138666

    申请日:2013-12-23

    Inventor: Andrei Erofeev

    Abstract: Performing data management operations on replicated data in a computer network. Log entries are generated for data management operations of an application executing on a source system. Consistency point entries are used to indicate a time of a known good, or recoverable, state of the application. A destination system is configured to process a copy of the log and consistency point entries to replicate data in a replication volume, the replicated data being a copy of the application data on the source system. When the replicated data represents a known good state of the application, as determined by the consistency point entries, the destination system(s) may perform a storage operation (e.g., snapshot, backup) to copy the replicated data and to logically associate the copied data with a time information (e.g., time stamp) indicative of the source system time when the application was in the known good state.

    Abstract translation: 对计算机网络中的复制数据执行数据管理操作。 生成用于在源系统上执行的应用程序的数据管理操作的日志条目。 一致性点条目用于指示应用程序的已知良好或可恢复状态的时间。 目标系统被配置为处理日志和一致性点条目的副本以复制复制卷中的数据,复制数据是源系统上应用程序数据的副本。 当复制数据表示应用程序的已知良好状态(由一致性点条目确定)时,目的地系统可以执行存储操作(例如快照,备份)以复制复制的数据,并将复制的数据逻辑关联 具有指示应用程序处于已知状态的源系统时间的时间信息(例如,时间戳)的数据。

    Preventing Non-Detectable Data Loss During Site Switchover
    166.
    发明申请
    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:US20150317224A1

    公开(公告)日:2015-11-05

    申请号:US14265592

    申请日:2014-04-30

    Applicant: NetAPP, Inc.

    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。

    Resolving Failed Mirrored Point-in-Time Copies with Minimum Disruption
    167.
    发明申请
    Resolving Failed Mirrored Point-in-Time Copies with Minimum Disruption 有权
    以最小中断解决失败的镜像时间点副本

    公开(公告)号:US20150301906A1

    公开(公告)日:2015-10-22

    申请号:US14258578

    申请日:2014-04-22

    Abstract: When the mirrored point in time copy fails, at that point in time all the data for making the source and target of the point in time copy consistent is available on secondary volumes at disaster recovery site. The data for the source and target of the failed point in time copy are logically and physically equal at that point in time. This logical relationship can be maintained, and protected against ongoing physical updates to the affected tracks on the source secondary volume, by first reading the affected tracks from the source secondary volume, copying the data to the target secondary volume, and then writing the updated track to the source secondary volume.

    Abstract translation: 当镜像时间点复制失败时,在该时间点,使灾难恢复站点上辅助卷上的所有数据使时间点的源和目标复制一致。 故障点时间副本的源和目标的数据在该时间点上是逻辑上和物理上相等的。 可以通过首先从源辅助卷读取受影响的轨道,将数据复制到目标辅助卷,然后写入更新的轨道,从而保持该逻辑关系并防止对源辅助卷上的受影响的轨道的持续物理更新 到源辅助卷。

    Data Synchronization Method and Data Synchronization System for Multi-Level Associative Storage Architecture, and Storage Medium
    168.
    发明申请
    Data Synchronization Method and Data Synchronization System for Multi-Level Associative Storage Architecture, and Storage Medium 有权
    数据同步方法和数据同步系统,用于多层次关联存储架构和存储介质

    公开(公告)号:US20150286653A1

    公开(公告)日:2015-10-08

    申请号:US14439672

    申请日:2013-10-29

    Abstract: A data synchronization method for a multi-level associative storage architecture includes: receiving, by a master module, a request of an external write operation, writing data into a write buffer of the master module, and recording a digit sequence according to the write operation on the write buffer of the master module; flushing data from the write buffer to solid-state disk (SSD) files when a data amount in the write buffer of the master module reaches a threshold; recording, by the master module, a digit sequence for a flush operation; separately synchronizing, by the master module, the write operation and the flush operation to a slave module according to orders of digits in different digit sequences; and receiving, by the slave module, the synchronous write operation and synchronous flush operation, and separately synchronizing the data of the master module to corresponding locations of a local write buffer and local SSD files.

    Abstract translation: 一种用于多级关联存储架构的数据同步方法包括:由主模块接收外部写入操作的请求,将数据写入主模块的写入缓冲器,以及根据写入操作记录数字序列 在主模块的写缓冲区上; 当主模块的写缓冲器中的数据量达到阈值时,将数据从写缓冲区刷新到固态磁盘(SSD)文件; 由主模块记录用于冲洗操作的数字序列; 由主模块根据不同数字序列中的数字顺序,将从机模块分别同步到从模块的写操作和刷新操作; 并且由从模块接收同步写操作和同步刷新操作,并且将主模块的数据单独地同步到本地写缓冲器和本地SSD文件的相应位置。

    CASCADE ORDERING
    169.
    发明申请
    CASCADE ORDERING 有权
    CASCADE订购

    公开(公告)号:US20150261619A1

    公开(公告)日:2015-09-17

    申请号:US14725345

    申请日:2015-05-29

    Abstract: A method of handling multiple served backup processes comprising creating a cascade of target storage volumes from a plurality of target storage volumes by inserting each most recent target storage volumes between a last added target storage volume and a source storage volume, the most recent target storage volumes each having a copy rate faster than the last added target storage volume, such that each added target storage volume has a faster copy rate than an immediately prior added target storage volume, and a most recent target storage volume added to the cascade of target storage volumes has a fastest copy rate; and receiving one or more instructions initiating a plurality of served backup processes from the source storage volume to a plurality of target storage volumes.

    Abstract translation: 一种处理多个服务的备份过程的方法,包括通过在最后添加的目标存储卷和源存储卷之间插入每个最新目标存储卷来创建来自多个目标存储卷的级联的目标存储卷,最近的目标存储卷 每个拷贝速率都比上一次添加的目标存储卷更快,这样每个添加的目标存储卷的复制速度比紧随其后的添加的目标存储卷更快,并且最新的目标存储卷被添加到目标存储卷的级联中 具有最快的拷贝率; 以及接收从所述源存储卷到多个目标存储卷的启动多个服务的备份处理的一个或多个指令。

    RESTORING DATABASE CONSISTENCY INTEGRITY
    170.
    发明申请
    RESTORING DATABASE CONSISTENCY INTEGRITY 有权
    恢复数据库一致性

    公开(公告)号:US20150254298A1

    公开(公告)日:2015-09-10

    申请号:US14633592

    申请日:2015-02-27

    Abstract: Techniques for restoring point-in-time and transaction consistency across consistency groups between a first and a second independent database management system (DBMS) for a disaster recovery. Several consistency groups (CGs) are defined for replication. For each CG in the first DBMS data changes are transmitted to a second DBMS. A timestamp representing a most recently received commit log record or a heartbeat during periods of inactivity for a CG is stored in a database table at regular intervals. At regular intervals, the timestamp is compared with timestamps for other CGs to identify a common time at which data to be applied to the CGs in the second DBMS have been received into a recoverable data store. The received data is applied to the CGs in the second DBMS up to the common time.

    Abstract translation: 用于在灾难恢复的第一和第二独立数据库管理系统(DBMS)之间的整个组之间恢复时间点和事务一致性的技术。 定义了几个一致性组(CG)进行复制。 对于第一个DBMS中的每个CG,数据更改被传输到第二个DBMS。 表示在CG不活动期间最近接收的提交日志记录或心跳的时间戳以规则的间隔存储在数据库表中。 以规律的间隔,将时间戳与其他CG的时间戳进行比较,以识别要应用于第二DBMS中的CG的数据已被接收到可恢复数据存储中的公共时间。 接收的数据应用到第二个DBMS中的CG,直到公共时间。

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