公开(公告)号：US09372757B2

公开(公告)日：2016-06-21

申请号：US14057145

申请日：2013-10-18

Applicant: SolidFire, Inc.

Inventor： Jared Cantwell ,  Matt Holiday

IPC: G06F11/14 ,  G06F17/30

CPC classification number: G06F11/1451 ,  G06F17/301 ,  G06F17/30368 ,  G06F17/30961 ,  G06F2201/80

Abstract: Disclosed are systems, computer-readable mediums, and methods for incremental block level backup. An initial backup of a volume is created at a backup server, where creating the initial backup includes retrieving an original metadata file from a metadata server, and retrieving a copy of all data of the volume based on the original metadata file. A first incremental backup of the volume is then created at the backup server, where creating the first incremental backup includes retrieving a first metadata file, where the first metadata file was created separately from the original metadata file. A block identifier of the first metadata file is compared to a corresponding block identifier of the original metadata file to determine a difference between the first and original block identifiers, and a copy of a changed data block of the volume is retrieved based on the comparison of the first and original block identifiers.

Abstract translation: 公开了用于增量块级备份的系统，计算机可读介质和方法。 在备份服务器上创建卷的初始备份，其中创建初始备份包括从元数据服务器检索原始元数据文件，并根据原始元数据文件检索卷的所有数据的副本。 然后在备份服务器上创建卷的第一个增量备份，其中创建第一个增量备份包括检索第一个元数据文件，其中第一个元数据文件与原始元数据文件分开创建。 将第一元数据文件的块标识符与原始元数据文件的相应块标识符进行比较，以确定第一和原始块标识符之间的差异，并且基于比较来检索卷的改变的数据块的副本 第一个和原始的块标识符。