Patent · US Expired

File deletion and truncation using a zombie file space

US7451165B2 · kind B2 · utility

0Cited by

63References

25Claims

0Family size

Assignee

Network Appliance, Inc. · US

Inventors

Ray Chen · Campbell, US
John K. Edwards · Sunnyvale, US
Kayuri Patel · Cupertino, US

Key dates

Filing date	Jun 15, 2004
Grant date	Nov 11, 2008
Priority date	—
Expiry date	Oct 16, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S707/99956
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method and system for reliably performing extra-long operations in a reliable state-full system (such as a file system). The file system includes a separate portion of the file system reserved for files having extra-long operations in progress, including file deletion and file truncation. This separate portion of the file system is called the zombie file space; it includes a separate name space from the regular (“live”) file system that is accessible to users, and is maintained as part of the file system when recording a consistency point.

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