e 2013

Choice of Data Transfer Protocols in Remote Storage Applications

HEJTMÁNEK, Lukáš, David ANTOŠ and Luboš KOPECKÝ

Basic information

Original name

Choice of Data Transfer Protocols in Remote Storage Applications

Authors

HEJTMÁNEK, Lukáš, David ANTOŠ and Luboš KOPECKÝ

Edition

21 pp. CESNET Technical Report 1/2013, 2013

Publisher

CESNET, z.s.p.o.

Other information

Type of outcome

Přehledové a vzdělávací texty

Confidentiality degree

není předmětem státního či obchodního tajemství

Keywords in English

RTT latency; NFSv4; FTP; rsync; SCP; performance
Změněno: 20/11/2013 15:04, RNDr. David Antoš, Ph.D.

Abstract

V originále

This study is devoted to analysis of latency impact of various network data trans- fer protocols to performance. The data transfers protocols were selected to match the protocols that CESNET Data Storage department uses for communication with clients, these protocols include FTP and FTP with SSL, SCP, rsync and rsync over ssh, NFSv4 with and without Kerberos authentication and encryption, and CIFS. The protocols were evaluated in two ways: 1. on dedicated hardware and dedicated local and wan area network connection to analyse latency impact without bias, 2. in a real-world setup using the production national backbone network. We used various types of load, e.g., number of small files, several large files, reads, writes to simulate typical user access scenarios. We conclude with recommendation of appropriate pro- tocol for particular work load types.

Links

LM2010005, research and development project
Name: Velká infrastruktura CESNET (Acronym: VI CESNET)
Investor: Ministry of Education, Youth and Sports of the CR