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1. (WO2017172377) FILE SYSTEM SUPPORT FOR FILE-LEVEL GHOSTING

Pub. No.:    WO/2017/172377    International Application No.:    PCT/US2017/022864
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Sat Mar 18 00:59:59 CET 2017
IPC: G06F 17/30
Applicants: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventors: XIE, Ping
KALACH, Ran
DAS, Raj
JOLLY, Tom
AGGARWAL, Arushi
Title: FILE SYSTEM SUPPORT FOR FILE-LEVEL GHOSTING
Abstract:
File system-awareness of ghosting performed by one or more tiering engines allows a file system to receive and store metadata indicating an identifier of the tiering engine ghosting the file extents and a storage location of the ghosted file extents for later use by the tiering engine. The file system is able to receive and process requests to read and write to a file having ghosted extents.