Seamless migration between replication technologies
    91.
    发明授权
    Seamless migration between replication technologies 有权
    复制技术之间的无缝迁移

    公开(公告)号:US08521691B1

    公开(公告)日:2013-08-27

    申请号:US13168182

    申请日:2011-06-24

    申请人: Assaf Natanzon

    发明人: Assaf Natanzon

    IPC分类号: G06F17/00 G06F17/30

    摘要: Traditional methods for migrating between replication technologies require stopping the old replication technology and starting with the new replication technology from scratch. Replicated data sizes can be very large (e.g., on the order of a petabyte) which can take a considerable amount of time, often several weeks, to read. During this time, replication is unavailable. Example embodiments of the present invention provide a method, apparatus and computer-program product for seamless migration from a preexisting replication service to a new replication service by configuring the new replication service, disabling the preexisting replication service enabling the new replication service. Example embodiments of the present invention also provide for querying storage to determine available replication sets, presenting a graphical user interface to a user to enable the user to select a replication set for migration and automatically performing the migration.

    摘要翻译: 在复制技术之间迁移的传统方法需要停止旧的复制技术,并从头开始使用新的复制技术。 复制的数据大小可能非常大(例如,大概数量级),这可能需要相当长的时间,通常需要几周才能读取。 在此期间,复制不可用。 本发明的示例实施例提供了一种用于通过配置新的复制服务来从预先存在的复制服务到新的复制服务的无缝迁移的方法,装置和计算机程序产品,禁用启用新的复制服务的预先存在的复制服务。 本发明的示例性实施例还提供查询存储以确定可用复制集,向用户呈现图形用户界面,以使用户能够选择用于迁移的复制集并自动执行迁移。

    Accessing a volume in a distributed environment
    92.
    发明授权
    Accessing a volume in a distributed environment 有权
    在分布式环境中访问卷

    公开(公告)号:US08392680B1

    公开(公告)日:2013-03-05

    申请号:US12749724

    申请日:2010-03-30

    IPC分类号: G06F12/00

    摘要: In one aspect, a method includes exposing a set of storage volumes to a host at a requested point in time, in a virtual access mode. The set of storage volumes are handled by distributed virtual consistency groups (CGs) having a background process wherein the distributed virtual CGs update the set of storage volumes to the requested point in time. The method also includes exposing a first service storage volume at a data protection appliance, determining if the virtual CGs have rolled back and using at least one of a central manager and a splitter to account for input/output requests (IOs) when a virtual CG has not rolled back.

    摘要翻译: 在一个方面,一种方法包括在虚拟访问模式中,在请求的时间点将一组存储卷暴露给主机。 该组存储卷由具有后台进程的分布式虚拟一致性组(CG)处理,其中分布式虚拟CG将所述一组存储卷更新到所请求的时间点。 该方法还包括在数据保护装置处暴露第一服务存储卷,确定虚拟CG是否已经回滚并且使用中央管理器和分离器中的至少一个来考虑输入/输出请求(IO)时的虚拟CG 还没有回滚

    Virtualized CG
    93.
    发明授权
    Virtualized CG 有权
    虚拟CG

    公开(公告)号:US08271441B1

    公开(公告)日:2012-09-18

    申请号:US12647450

    申请日:2009-12-26

    IPC分类号: G06F7/00 G06F17/00

    摘要: A method, system, and program product for use in a data replication environment, the data replication environment comprising a plurality of data protection appliances, each data protection appliance of the plurality of data protection appliances comprising a journal, the method comprising creating a virtual consistency group comprising a virtual journal; wherein the virtual consistency group is configured to replicate a production volume, dividing the virtual consistency group into segments; wherein each segment corresponds to a portion of the production volume and a portion of the virtual journal, and assigning each data protection appliance of the plurality of data protection appliances a segment of the virtual consistency group.

    摘要翻译: 一种在数据复制环境中使用的方法,系统和程序产品,所述数据复制环境包括多个数据保护装置,所述多个数据保护装置中的每个数据保护装置包括日志,所述方法包括创建虚拟一致性 组成一个虚拟杂志; 其中所述虚拟一致性组被配置为复制所述生产卷,将所述虚拟一致性组划分成段; 其中每个段对应于所述生产卷的一部分和所述虚拟日志的一部分,以及将所述多个数据保护装置中的每个数据保护装置分配给所述虚拟一致性组的一部分。

    Methods and apparatus for virus detection using journal data
    94.
    发明授权
    Methods and apparatus for virus detection using journal data 有权
    使用日志数据进行病毒检测的方法和装置

    公开(公告)号:US07934262B1

    公开(公告)日:2011-04-26

    申请号:US11964138

    申请日:2007-12-26

    IPC分类号: G06F11/30

    CPC分类号: G06F21/564 G06F2221/2151

    摘要: Method and apparatus for detecting viruses in a continuous data protection system using by scanning journal data. In an exemplary embodiment, a system stores journal data, receiving a virus signature update containing a first new virus signature, scanning the journal data for the first new virus signature, and identifying a data block containing the first new virus signature for a first virus.

    摘要翻译: 用于通过扫描日志数据检测连续数据保护系统中的病毒的方法和装置。 在示例性实施例中,系统存储日志数据,接收包含第一新病毒签名的病毒签名更新,扫描用于第一新病毒签名的日志数据,以及识别包含第一病毒的第一新病毒签名的数据块。

    Methods and apparatus for multiple point in time data access
    95.
    发明授权
    Methods and apparatus for multiple point in time data access 有权
    多点时间数据访问的方法和装置

    公开(公告)号:US07849361B2

    公开(公告)日:2010-12-07

    申请号:US11609561

    申请日:2006-12-12

    IPC分类号: G06F11/00

    摘要: Method and apparatus for data access, including for a host device designated as Device A within a host computer, the host device corresponding to a first logical storage unit designated as LUN A, where LUN A is configured to access data directly from a physical storage system, assigning a second logical storage unit, designated as LUN X, wherein LUN X is configured to access the storage system indirectly via a data protection computer, providing the data protection computer access to a data structure that is able to recover data that was stored in the storage system at an earlier point in time, T1, and in response to a request from the host computer for data that was stored in the storage system at time T1, switching Device A to get its data from LUN X instead of from LUN A. A data access system and a computer-readable storage medium are also described and claimed.

    摘要翻译: 用于数据访问的方法和装置,包括对于在主计算机内被指定为设备A的主机设备,主机设备对应于指定为LUN A的第一逻辑存储单元,其中,LUN A被配置为直接从物理存储系统 ,分配指定为LUN X的第二逻辑存储单元,其中LUN X被配置为经由数据保护计算机间接地访问存储系统,提供数据保护计算机对能够恢复存储的数据的数据结构的访问 存储系统在较早的时间点T1,并且响应于来自主计算机对在时间T1存储在存储系统中的数据的请求,切换设备A以从LUN X而不是从LUN A获取其数据 还描述和要求保护数据访问系统和计算机可读存储介质。

    Methods and apparatus for dynamic journal expansion
    96.
    发明授权
    Methods and apparatus for dynamic journal expansion 有权
    动态期刊扩充的方法和装置

    公开(公告)号:US07840536B1

    公开(公告)日:2010-11-23

    申请号:US11964198

    申请日:2007-12-26

    IPC分类号: G06F9/50 G06F3/06

    CPC分类号: G06F17/30191 G06F11/2071

    摘要: Method and apparatus to dynamically add storage for a journal in a continuous data protection system. In an exemplary embodiment, a method includes storing a plurality of journal data streams for a journal in a continuous data protection system in first storage, where streams in the journal data streams contain linked lists of data blocks, determining when the first storage exceeds a selected fullness threshold, allocating second storage for the journal in addition to the first storage, and storing data for the journal in the second storage.

    摘要翻译: 在连续数据保护系统中为日志动态添加存储的方法和装置。 在示例性实施例中,一种方法包括在第一存储器中的用于日志的多个日志数据流存储在连续数据保护系统中,其中日志数据流中的流包含链接的数据块列表,确定第一存储器何时超过所选择的 饱和度阈值,除了第一存储之外为日志分配第二存储器,以及将日志的数据存储在第二存储器中。

    Methods and apparatus for continuous data protection system having journal compression
    97.
    发明授权
    Methods and apparatus for continuous data protection system having journal compression 有权
    具有日志压缩的连续数据保护系统的方法和装置

    公开(公告)号:US07797358B1

    公开(公告)日:2010-09-14

    申请号:US11964168

    申请日:2007-12-26

    IPC分类号: G06F17/30

    摘要: Method and apparatus to compress journal data in a continuous data protection system. An exemplary embodiment includes storing journal data including a do data stream and an undo data stream in a continuous data protection system, compressing data prior to entry in the do data stream, storing compression information in a do metadata stream for the do data stream entry, accessing the data for the entry in the do data stream, examining the do metadata stream for the entry, and decompressing the do data stream entry and writing the decompressed data to storage.

    摘要翻译: 在连续数据保护系统中压缩日志数据的方法和装置。 示例性实施例包括将包括执行数据流和撤消数据流的日志数据存储在连续数据保护系统中,在do数据流中输入之前压缩数据,在do数据流条目的do元数据流中存储压缩信息, 访问do数据流中的条目的数据,检查该条目的do元数据流,以及解压缩do数据流条目并将解压缩的数据写入存储。

    Methods and apparatus for point in time data access and recovery
    98.
    发明授权
    Methods and apparatus for point in time data access and recovery 有权
    时间数据访问和恢复的方法和装置

    公开(公告)号:US07774565B2

    公开(公告)日:2010-08-10

    申请号:US11609560

    申请日:2006-12-12

    CPC分类号: G06F17/30368

    摘要: Methods and systems for accessing data from a previous point in time, including receiving data stored in a storage system of addressable memory, the storage system including a plurality of addresses, receiving a journal history of write transactions for the storage, each write transaction including (i) a plurality of designated memory addresses, (ii) a corresponding plurality of current data to write in the designated memory addresses for storage, and (iii) a time indicator, generating a data structure that represents a virtual interface to the storage at a specified point in time, based on the write transactions in the journal history having a time subsequent to the specified point in time, and enabling a user to process the data from the specified point in time, via the virtual interface and the journal history.

    摘要翻译: 用于从先前时间点访问数据的方法和系统,包括接收存储在可寻址存储器的存储系统中的数据,所述存储系统包括多个地址,接收用于存储器的写入事务的日志历史,每个写入事务包括 i)多个指定的存储器地址,(ii)对应的多个当前数据,以写入指定的存储器地址以进行存储;以及(iii)时间指示器,生成表示在存储器中的虚拟接口的数据结构 基于具有指定时间点之后的时间的日志记录中的写入事务,并且使用户能够通过虚拟接口和日志历史来处理来自指定时间点的数据的指定时间点。