公开(公告)号：US20150026424A1

公开(公告)日：2015-01-22

申请号：US14509892

申请日：2014-10-08

Applicant: NetApp, Inc.

Inventor： Bharadwaj Vellore Ramesh ,  Chaitanya Venkata Vijay Challapalli ,  Rohini Raghuwanshi ,  Praveen Killamsetti ,  Sudhanshu Gupta

IPC: G06F3/06

CPC classification number: G06F3/0641 ,  G06F3/0619 ,  G06F3/067 ,  G06F11/1453

Abstract: A method performed in a network storage system, the method including receiving a plurality of data blocks at a secondary storage subsystem from a primary storage subsystem, generating a first log that includes a first plurality of entries, one entry for each of the data blocks, in which each entry of the first plurality of entries includes a name for a respective data block and a fingerprint of the respective data block, receiving metadata at the secondary storage subsystem from the primary storage subsystem, the metadata describing relationships between the plurality of blocks and a plurality of files, generating a second log that includes a second plurality of entries, and merging the first log with the second log to generate a change log.

Abstract translation: 一种在网络存储系统中执行的方法，所述方法包括从主存储子系统在次存储子系统处接收多个数据块，生成包括第一多个条目的第一日志，每个数据块的一个条目， 其中所述第一多个条目的每个条目包括相应数据块的名称和相应数据块的指纹，从所述主存储子系统接收所述辅助存储子系统的元数据，所述元数据描述所述多个块之间的关系和 多个文件，生成包括第二多个条目的第二日志，以及将第一日志与第二日志合并以生成改变日志。