Method and apparatus for dynamically backing up database files
    1.
    发明授权
    Method and apparatus for dynamically backing up database files 有权
    动态备份数据库文件的方法和装置

    公开(公告)号:US08429359B1

    公开(公告)日:2013-04-23

    申请号:US11026656

    申请日:2004-12-31

    IPC分类号: G06F12/16

    摘要: A method and apparatus for backing up a storage system, e.g., one or more disk drives. In one embodiment, an apparatus utilizes a volume snapshot service (VSS) to create a snapshot image file of a computer's storage system and then subsequently reads the data blocks contained in the snapshot image file. A determination of the number of modified data blocks, i.e., the data blocks that have changed since a last backup operation, is made. The apparatus estimates a backup size from the number of modified data blocks and subsequently determines if the estimated backup size exceeds a predetermined threshold. In the event the predetermined threshold is exceeded, a backup operation is conducted.

    摘要翻译: 一种用于备份诸如一个或多个磁盘驱动器的存储系统的方法和装置。 在一个实施例中,设备利用卷快照服务(VSS)来创建计算机的存储系统的快照图像文件,然后随后读取包含在快照图像文件中的数据块。 确定修改的数据块的数量,即自上次备份操作以来已经改变的数据块。 该装置根据经修改的数据块的数量来估计备份大小,并随后确定估计备份大小是否超过预定阈值。 在超过预定阈值的情况下,进行备份操作。