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    EFFICIENTLY RESTORING EXECUTION OF A BACKED UP VIRTUAL MACHINE BASED ON COORDINATION WITH VIRTUAL-MACHINE-FILE-RELOCATION OPERATIONS
    26.
    发明申请
    EFFICIENTLY RESTORING EXECUTION OF A BACKED UP VIRTUAL MACHINE BASED ON COORDINATION WITH VIRTUAL-MACHINE-FILE-RELOCATION OPERATIONS 有权
    基于与虚拟机 - 文件转移操作协调的备份虚拟机的有效恢复执行

    公开(公告)号：US20160085574A1

    公开(公告)日：2016-03-24

    申请号：US14493239

    申请日：2014-09-22

    Applicant: CommVault Systems, Inc.

    Inventor： Henry Wallace DORNEMANN ,  Rahul S. PAWAR ,  Paramasivam KUMARASAMY ,  Satish Chandra KILARU ,  Ananda VENKATESHA

    IPC: G06F9/455

    CPC classification number: G06F3/0647 ,  G06F3/0605 ,  G06F3/0617 ,  G06F3/0649 ,  G06F3/0664 ,  G06F3/067 ,  G06F9/45533 ,  G06F9/45537 ,  G06F9/45558 ,  G06F11/1446 ,  G06F11/1448 ,  G06F11/1451 ,  G06F11/1458 ,  G06F11/1469 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2201/805 ,  G06F2201/815

    Abstract: The disclosed systems and methods enable a virtual machine, including any applications executing thereon, to quickly start executing and servicing users based on pre-staged data blocks supplied from a backup copy in secondary storage. Substantially concurrently with the ongoing execution of the virtual machine, a virtual-machine-file-relocation operation may move data blocks originating in the backup copy to a primary storage destination that becomes the virtual machine's primary data store after the relocation operation completes. An enhanced data agent, operating in conjunction with an enhanced media agent in a storage management system, coordinates restoring of the virtual machine and the launch of the relocation operation. The enhanced media agent may pre-stage certain backed up data blocks which may be needed to launch the virtual machine, based on predictive analysis pertaining to the virtual machine's operational profile. The enhanced media agent may also pre-stage backed up data blocks for the relocation operation, based on the operation's relocation scheme. Servicing read requests to the virtual machine may take priority over ongoing pre-staging of backed up data. Read requests may be tracked so that the media agent may properly maintain the contents of an associated read cache. Some embodiments of the illustrative storage management system may lack, or may simply not require, the relocation operation, and may operate in a “live mount” configuration.

    Abstract translation: 所公开的系统和方法使得虚拟机（包括其上执行的任何应用）能够基于在辅助存储器中的备份副本提供的预先分级的数据块快速开始执行和维护用户。 与虚拟机的持续执行大致同时，虚拟机文件重定位操作可以将在备份副本中发起的数据块移动到在重定位操作完成之后成为虚拟机的主数据存储的主存储目的地。 增强的数据代理，与存储管理系统中的增强型媒体代理一起运行，协调虚拟机的恢复和启动重定位操作。 基于与虚拟机的操作简档相关的预测分析，增强型媒体代理可以预先启动可能需要启动虚拟机的某些备份的数据块。 增强媒体代理还可以基于操作的重定位方案来预备用于重定位操作的备份数据块。 对虚拟机的读取请求的服务可能优先于备份数据的正在进行的预分配。 可以跟踪读取请求，使得媒体代理可以适当地维护相关读取高速缓存的内容。 说明性存储管理系统的一些实施例可能缺乏重新定位操作，或可能简单地不需要重新定位操作，并且可以以“实时安装”配置操作。

    VIRTUAL MACHINE CHANGE BLOCK TRACKING
    27.
    发明申请
    VIRTUAL MACHINE CHANGE BLOCK TRACKING 有权

    公开(公告)号：US20240402916A1

    公开(公告)日：2024-12-05

    申请号：US18801675

    申请日：2024-08-12

    Applicant: Commvault Systems, Inc.

    Inventor： Henry Wallace DORNEMANN ,  Rahul S. PAWAR

    IPC: G06F3/06 ,  G06F9/455 ,  G06F11/00 ,  G06F11/14 ,  G06F16/188

    Abstract: According to certain aspects, a system includes a client device that includes a virtual machine (VM) executed by a hypervisor, a driver located within the hypervisor, and a data agent. The VM may include a virtual hard disk file and a change block bitmap file. According to some embodiments the driver intercepts write operations generated by the VM to store data in a sector, determines an identity of the sector based on the intercepted write operation, determines an entry in the change block file that corresponds with the first sector, and modifies the entry in the change block file to indicate that data in that sector has changed. The data agent may generate an incremental backup of the VM based on the change block file in response to an instruction from a storage manager, where the incremental backup includes the data in the sector where data was modified.

    CROSS-PLATFORM VIRTUAL MACHINE BACKUP AND REPLICATION
    28.
    发明申请
    CROSS-PLATFORM VIRTUAL MACHINE BACKUP AND REPLICATION 有权

    公开(公告)号：US20220083429A1

    公开(公告)日：2022-03-17

    申请号：US17486637

    申请日：2021-09-27

    Applicant: Commvault Systems, Inc.

    Inventor： Rahul S. PAWAR ,  Henry Wallace DORNEMANN

    IPC: G06F11/14 ,  G06F16/25 ,  G06F11/00 ,  G06F11/34 ,  G06F11/30

    Abstract: According to certain aspects, a method can include, at a first time, performing an incremental backup of first data associated with a virtual machine (VM) residing on a source client computing device from the source client computing device to one or more secondary storage devices to create a backup copy of the VM, where the VM is associated with a hypervisor of a first type; receiving an instruction to restore the first data associated with the VM from the one or more secondary storage devices; retrieving the first data from the one or more secondary storage devices; and applying the first data to second data associated with a replicated VM running on the destination client computing device, where the replicated VM is a replicated version of the VM, and where the second data corresponds to data of the VM at a time before the first time.

    DATABASE PROTECTION USING BLOCK-LEVEL MAPPING
    30.
    发明申请
    DATABASE PROTECTION USING BLOCK-LEVEL MAPPING 有权

    公开(公告)号：US20210255935A1

    公开(公告)日：2021-08-19

    申请号：US17191517

    申请日：2021-03-03

    Applicant: Commvault Systems, Inc.

    Inventor： Henry Wallace DORNEMANN ,  Rahul S. PAWAR ,  Jun H. AHN

    IPC: G06F11/14 ,  G06F16/27 ,  G06F16/11 ,  G06F16/182 ,  G06F16/21 ,  G06F16/17 ,  G06F16/22 ,  G06F16/23 ,  G06F3/06 ,  G06F11/30 ,  G06F11/34

    Abstract: A system according to certain aspects may include a client computing device including: a database application configured to output a database file in a primary storage device(s), the database application outputting the database file as a series of application-level blocks; and a data agent configured to divide the database file into a plurality of first blocks having a first granularity larger than a second granularity of the application-level blocks such that each of the first blocks spans a plurality of the application-level blocks. The system may include a secondary storage controller computer(s) configured to: in response to instructions to create a secondary copy of the database file: copy the plurality of first blocks to a secondary storage device(s) to create a secondary copy of the database file; and create a table that provides a mapping between the copied plurality of first blocks and corresponding locations on the secondary storage device(s).

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