公开(公告)号：US09015123B1

公开(公告)日：2015-04-21

申请号：US13743222

申请日：2013-01-16

Applicant: NetApp, Inc.

Inventor： Jose Mathew ,  Rithin Shetty ,  Kiran Kumar Modukuri ,  Aditya Toomula ,  Anudhar Emani

IPC: G06F7/00 ,  G06F17/00 ,  G06F17/30

CPC classification number: G06F17/30174

Abstract: An embodiment of the invention provides an apparatus and method for presenting differences in a file system of a clustered storage system. In an embodiment, the clustered storage system receives a request from a host, where the request is for a listing of changes in the file system within a time interval. A comparison unit in each storage node of the clustered storage system determines each metadata container associated with the file system which has changed within the time interval. The application programming interface buffers at least one identifier that corresponds to a metadata container associated with the file system which has changed within the time interval. The application programming interface packages and transmits the at least one identifier to the host. The at least one identifier is readable on the host.

Abstract translation: 本发明的实施例提供了一种用于呈现集群存储系统的文件系统的差异的装置和方法。 在一个实施例中，集群存储系统从主机接收请求，其中该请求用于在一段时间间隔内对文件系统中的改变的列表。 集群存储系统的每个存储节点中的比较单元确定与在该时间间隔内已经改变的文件系统相关联的每个元数据容器。 应用编程接口缓冲至少一个与在该时间间隔内已经改变的文件系统相关联的元数据容器的标识符。 应用编程接口封装并将至少一个标识符发送到主机。 该主机上至少有一个标识符是可读的。