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    • 2. 发明授权
    • System and method for file-based virtual machine incremental backup
    • 基于文件的虚拟机增量备份的系统和方法
    • US08751515B1
    • 2014-06-10
    • US13436460
    • 2012-03-30
    • Jian XingAnand Raj
    • Jian XingAnand Raj
    • G06F7/00
    • G06F17/30073
    • A source virtual machine (VM) disk file associated with a VM is parsed to generate metadata representing files stored in a virtual storage device of the VM, where the VM is one of VMs hosted by a VM monitor (VMM). In response to a request for an incremental backup of files stored in the source VM disk file, a file attribute of each of the files is examined based on the metadata to identify one or more files that have been modified within a predetermined past period of time. File records associated with the identified files are determined based on the metadata that have been modified within the predetermined past period of time. The identified file records are then backed up from the source VM disk file to a target VM disk file, without having to back up unmodified files in the source VM disk file.
    • 解析与虚拟机关联的源虚拟机(VM)磁盘文件以生成表示存储在虚拟机的虚拟存储设备中的文件的元数据,其中虚拟机是虚拟机监视器(VMM)托管的虚拟机之一。 响应于存储在源VM磁盘文件中的文件的增量备份的请求,基于元数据检查每个文件的文件属性,以识别在预定的过去时间段内已被修改的一个或多个文件 。 基于已经在预定的过去时间段内被修改的元数据来确定与所识别的文件相关联的文件记录。 然后,将标识的文件记录从源VM磁盘文件备份到目标VM磁盘文件,而无需备份源虚拟机磁盘文件中的未修改的文件。
    • 9. 发明授权
    • System and method for block-based subtree virtual machine backup
    • 基于块的子树虚拟机备份的系统和方法
    • US08719286B1
    • 2014-05-06
    • US13436454
    • 2012-03-30
    • Jian XingAnand Raj
    • Jian XingAnand Raj
    • G06F7/00
    • G06F11/1451G06F11/1453G06F2201/815
    • Techniques for virtual machine backup are described herein. According to one embodiment, a source virtual machine (VM) disk file associated with a VM is parsed to generate metadata representing files stored in a virtual storage device of the VM, where the VM is one of one or more VMs hosted by a VM monitor (VMM). In response to a request to back up a subdirectory of one or more files stored in the source VM disk file, file records of the one or more files of the requested subdirectory are identified based on the metadata. The identified file records associated with the subdirectory are backed up from the source VM disk file to a target VM disk file, without having to back up remaining files in the source VM disk file.
    • 本文描述了用于虚拟机备份的技术。 根据一个实施例,解析与VM相关联的源虚拟机(VM)磁盘文件以生成表示存储在VM的虚拟存储设备中的文件的元数据,其中VM是由VM监视器托管的一个或多个VM之一 (VMM)。 响应于备份存储在源VM磁盘文件中的一个或多个文件的子目录的请求,基于元数据来识别所请求的子目录的一个或多个文件的文件记录。 与子目录相关联的已识别文件记录将从源虚拟机磁盘文件备份到目标VM磁盘文件,而无需备份源虚拟机磁盘文件中的剩余文件。