SELECTING FILES FOR RESTORATION FROM BLOCK-LEVEL BACKUP FOR VIRTUAL MACHINES

    公开(公告)号:US20190012339A1

    公开(公告)日:2019-01-10

    申请号:US16128289

    申请日:2018-09-11

    Abstract: A data storage system receives a user instruction through a user interface to restore a specific virtual machine file from a block-level backup. The system accesses a file index which is created during the block-level backup by accessing the file allocation table of the underlying host system and associating the blocks with the file location information of the virtual machine files stored in the file allocation table. The system further creates a file level table based at least in part on the virtual machine file information stored in the file index, displays a listing of the virtual machine files from the file level table, and receives a user selected virtual machine file to restore.

    Database protection using block-level mapping

    公开(公告)号:US10108687B2

    公开(公告)日:2018-10-23

    申请号:US14714070

    申请日:2015-05-15

    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).

    SYSTEMS AND METHODS TO PROCESS BLOCK-LEVEL BACKUP FOR SELECTIVE FILE RESTORATION FOR VIRTUAL MACHINES
    110.
    发明申请
    SYSTEMS AND METHODS TO PROCESS BLOCK-LEVEL BACKUP FOR SELECTIVE FILE RESTORATION FOR VIRTUAL MACHINES 审中-公开
    用于虚拟机选择性文件恢复的块级备份的系统和方法

    公开(公告)号:US20160306715A1

    公开(公告)日:2016-10-20

    申请号:US15197297

    申请日:2016-06-29

    Abstract: A data storage system protects virtual machines using block-level backup operations and restores the data at a file level. The system accesses the virtual machine file information from the file allocation table of the host system underlying the virtualization layer. A file index associates this virtual machine file information with the related protected blocks in a secondary storage device during the block-level backup. Using the file index, the system can identify the specific blocks in the secondary storage device associated with a selected restore file. As a result, file level granularity for restore operations is possible for virtual machine data protected by block-level backup operations without restoring more than the selected file blocks from the block-level backup data.

    Abstract translation: 数据存储系统使用块级备份操作保护虚拟机,并在文件级恢复数据。 系统从虚拟化层底层的主机系统的文件分配表中访问虚拟机文件信息。 在块级备份期间,文件索引将该虚拟机文件信息与辅助存储设备中的相关受保护块相关联。 使用文件索引,系统可以识别与所选还原文件相关联的辅助存储设备中的特定块。 因此,对于由块级备份操作保护的虚拟机数据,对于恢复操作的文件级别粒度是可能的,而不会从块级备份数据中还原多于所选文件块。

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