公开(公告)号：US08190836B1

公开(公告)日：2012-05-29

申请号：US12113049

申请日：2008-04-30

Applicant: Ling Zheng ,  Durga M. Arikatla ,  Vinay Hangud ,  Stephen Manley ,  Hsing Yuan

Inventor： Ling Zheng ,  Durga M. Arikatla ,  Vinay Hangud ,  Stephen Manley ,  Hsing Yuan

IPC: G06F12/12

CPC classification number: G06F3/0608 ,  G06F3/061 ,  G06F3/0641 ,  G06F3/065 ,  G06F3/067 ,  G06F11/1435 ,  G06F11/1448 ,  G06F11/1451 ,  G06F11/1453 ,  G06F11/1458

Abstract: An image-based backup backs up one or more snapshots of a volume without duplicating common data blocks. A backup engine receives a request to generate a backup image of a volume. In response to the request, the backup engine generates the backup image including data blocks and metadata describing attributes of the data blocks. The data blocks and the metadata arranged in the backup image in a same order as they were retrieved without imposing any additional ordering constraints on the data blocks and the metadata.

Abstract translation: 基于映像的备份备份卷的一个或多个快照，而不会复制公共数据块。 备份引擎接收生成卷的备份映像的请求。 响应于该请求，备份引擎生成包括数据块和描述数据块的属性的元数据的备份映像。 数据块和元数据排列在备份图像中，与它们被检索的顺序相同，而不对数据块和元数据施加任何额外的排序限制。

公开(公告)号：US08126847B1

公开(公告)日：2012-02-28

申请号：US12113060

申请日：2008-04-30

Applicant: Ling Zheng ,  Durga M. Arikatla ,  Vinay Hangud ,  Stephen Manley ,  Hsing Yuan

Inventor： Ling Zheng ,  Durga M. Arikatla ,  Vinay Hangud ,  Stephen Manley ,  Hsing Yuan

IPC: G06F7/00 ,  G06F17/00

CPC classification number: G06F11/1469

Abstract: Image-based data restoration restores an entire image of a volume or selective files. A restore engine receives a request to restore data from a backup image that includes a plurality of data blocks and metadata describing attributes of the data blocks. In response to the request, the restore engine determines a restore mode. If it is determined to be a logical restore mode, the restore engine restores a file by retrieving the metadata associated with the file and the data blocks that are pointed to by the metadata. If it is determined to be an image restore mode, the restore engine restores an entire image of the volume by using the data blocks in the backup image without using the metadata.

Abstract translation: 基于图像的数据恢复恢复卷或选择性文件的整个图像。 恢复引擎接收从备份图像恢复数据的请求，该备份图像包括多个数据块和描述数据块的属性的元数据。 响应该请求，恢复引擎确定恢复模式。 如果确定为逻辑恢复模式，则恢复引擎通过检索与该文件相关联的元数据和元数据指向的数据块来恢复文件。 如果确定为图像恢复模式，则恢复引擎通过使用备份映像中的数据块而不使用元数据来恢复卷的整个映像。