A Novel Collaborative Fault-Tolerance Mechanism for Metadata Server Cluster

Author

Li, Z.X. ; Wei, Q.S. ; Wang, Y.H.

Author_Institution

Data Storage Inst., Singapore

fYear

2007

fDate

19-21 Nov. 2007

Firstpage

495

Lastpage

500

Abstract

In object-based storage system, metadata residing in metadata server (MDS) is crucial to the survival of overall system. Keeping metadata always available is becoming one of the key issues to be addressed for object-based storage system design and implementation. This paper presents a novel cooperative fault-tolerance mechanism for metadata server cluster, called Co-MDS. The Co-MDS consolidates disk space of individual MDS into a global metadata storage space and provides high fault-tolerance by distributing metadata and its parity data across collaborative metadata server cluster environment. With this mechanism, metadata is still available even when a part of metadata servers fail. Our design is transparent for applications and complies with OSD T10 standard. The experiments demonstrate that the proposed collaborative mechanism can offer high fault-tolerance and significant performance.

Keywords

digital storage; fault tolerant computing; groupware; meta data; network servers; collaborative fault-tolerance mechanism; metadata server cluster; metadata storage space; object-based storage system; Computer architecture; Data security; Fault tolerance; Fault tolerant systems; File servers; International collaboration; Memory; Network servers; Secure storage; Storage area networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Networks, 2007. ICON 2007. 15th IEEE International Conference on

Conference_Location

Adelaide, SA

ISSN

1556-6463

Print_ISBN

978-1-4244-1230-3

Electronic_ISBN

1556-6463

Type

conf

DOI

10.1109/ICON.2007.4444136

Filename

4444136