公开(公告)号：US10180943B2

公开(公告)日：2019-01-15

申请号：US13781585

申请日：2013-02-28

Applicant: Microsoft Corporation

Inventor： Ping Xie ,  Chun Ho Cheung ,  Kashif Hasan ,  Abhishek Gupta ,  Ran Kalach ,  Daniel Hefenbrock

IPC: G06F17/30

Abstract: The subject disclosure is directed towards partially recalling file ranges of deduplicated files based on tracking dirty (write modified) ranges (user writes) in a way that eliminates or minimizes reading and writing already-optimized adjacent data. The granularity of the ranges does not depend on any file-system granularity for tracking ranges. In one aspect, lazy flushing of tracking data that preserves data-integrity and crash-consistency is provided. In one aspect, also described is supporting granular partial recall on an open file while a data deduplication system is optimizing that file.

公开(公告)号：US20140244601A1

公开(公告)日：2014-08-28

申请号：US13781585

申请日：2013-02-28

Applicant: MICROSOFT CORPORATION

Inventor： Ping Xie ,  Chun Ho Cheung ,  Kashif Hasan ,  Abhishek Gupta ,  Ran Kalach ,  Daniel Hefenbrock

IPC: G06F17/30

CPC classification number: G06F17/30117 ,  G06F17/30156

Abstract: The subject disclosure is directed towards partially recalling file ranges of deduplicated files based on tracking dirty (write modified) ranges (user writes) in a way that eliminates or minimizes reading and writing already-optimized adjacent data. The granularity of the ranges does not depend on any file-system granularity for tracking ranges. In one aspect, lazy flushing of tracking data that preserves data-integrity and crash-consistency is provided. In one aspect, also described is supporting granular partial recall on an open file while a data deduplication system is optimizing that file.

Abstract translation: 主题公开旨在基于消除或最小化已经优化的相邻数据的读取和写入的方式基于跟踪脏（写修改）范围（用户写入）来部分地调用重复数据删除的文件的文件范围。 范围的粒度不依赖于跟踪范围的任何文件系统粒度。 在一方面，提供了保持数据完整性和崩溃一致性的跟踪数据的延迟刷新。 在一个方面，还描述了在重新数据删除系统优化该文件的同时，在打开的文件上支持粒度部分调用。