Patent · US Active

System and method for managing file data during consistency points

US7979402B1 · kind B1 · utility

23Cited by

70References

24Claims

0Family size

Assignee

NetApp, Inc. · US

Inventors

Eric Hamilton · Durham, US
Jeffrey S. Kimmel · Chapel Hill, US
Robert L. Fair · Cary, US
Ashish Prakash · Morrisville, US

Key dates

Filing date	Apr 30, 2010
Grant date	Jul 12, 2011
Priority date	—
Expiry date	Apr 30, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S707/99953
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A system and method for managing data during consistency points in a storage system is provided. A buffer data control structure is modified to include a flags array that tracks various status flags for both a current and a next consistency point (CP). By utilizing multiple pointers within a buffer control structure, the storage system may permit write operations to continue to a data container undergoing write allocation. Received writes during a write allocation procedure are stored in raw data buffers and the buffer control structure is marked as being dirty for a next CP.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.