Global Patent Index - EP 3532939 A4

EP 3532939 A4 20200617 - GARBAGE COLLECTION SYSTEM AND PROCESS

Title (en)

GARBAGE COLLECTION SYSTEM AND PROCESS

Title (de)

MÜLLSAMMELSYSTEM UND VERFAHREN

Title (fr)

SYSTÈME ET PROCÉDÉ DE COLLECTE DE DÉCHETS

Publication

EP 3532939 A4 20200617 (EN)

Application

EP 17876888 A 20171129

Priority

  • US 201662427353 P 20161129
  • US 201715825073 A 20171128
  • US 2017063673 W 20171129

Abstract (en)

[origin: WO2018102392A1] A garbage collection process for a data deduplication storage system is disclosed. In one implementation, a method is disclosed to perform garbage collection that works effectively across a scale-out cluster and across very large amounts of data. The method includes compacting data in an object store in the scale-out cluster by examining data in a reference map of data blocks in the object store to determine which of the locations within a back-end object in an object store are referenced, and which locations are no longer referenced by a process. The back-end object in an Object Store are altered to remove block data from locations which are no longer referenced, and a hash-to-location table is updated to remove the entries for the removed block data.

IPC 8 full level

G06F 12/02 (2006.01); G06F 3/06 (2006.01)

CPC (source: EP)

G06F 3/0608 (2013.01); G06F 3/0641 (2013.01); G06F 3/0643 (2013.01); G06F 3/0652 (2013.01); G06F 3/067 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2018102392 A1 20180607; CN 110226153 A 20190910; EP 3532939 A1 20190904; EP 3532939 A4 20200617

DOCDB simple family (application)

US 2017063673 W 20171129; CN 201780073649 A 20171129; EP 17876888 A 20171129