公开(公告)号：US09934230B1

公开(公告)日：2018-04-03

申请号：US13780716

申请日：2013-02-28

Applicant: NetApp, Inc.

Inventor： Dipankar Roy ,  Andrew Narver ,  Robert Wyckoff Hyer, Jr.

IPC: G06F17/30

CPC classification number: G06F17/30132

Abstract: Embodiments described herein enable a storage system configured with a cache, i.e., a caching storage system, to obtain soft locks on a plurality of files, including non-regular file types, supported by a plurality of file access protocols. The cache is illustratively embodied as a flexible volume configured to temporarily store information, such as contents of the files, through replication of attributes and data of the files from an origin storage system. The soft locks are illustratively implemented as delegations; a delegation on a file enables the caching storage system to serve the attributes and the data for the file without verifying validity of the data with the origin storage system.