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Paper Abstract and Keywords
Presentation 2012-01-26 13:40
Scaling-Up Network Servers in N:1 Redundant Systems by Using I/O Virtualization
Jun Suzuki, Takayuki Miyagaki, Madoka Komatsubara, Kazuteru Ohmori, Hiroshi Baba, Kazuhiro Egashira, Hiroshi Shimamoto, Masaki Tachibana (NEC), Katsuyuki Akizuki, Satoshi Tsuchiya (NCOS), Youichi Hidaka, Junichi Higuchi, Takashi Yoshikawa (NEC) NS2011-157
Abstract (in Japanese) (See Japanese page) 
(in English) In a redundant network server system, data in the memory of a primary server are copied to that of a backup server to rapidly switch over a service when a hardware failure occurs. Configuring N:1 redundancy in such a server system requires the memory of a backup server to be scaled up by N times to store the data of N primary servers, and scaled down after it takes over a service of a failed primary server. Thus, we propose a method for this dynamic scaling up of the memory of a backup server by means of I/O virtualization technology and a solid-state drive (SSD) used as a memory extension. We implemented a 3:1 server system of session initiation protocol (SIP). Observed performance and the CPU load were the same as those of a conventional 1:1 configuration, though the total power consumption was reduced by 30%.
Keyword (in Japanese) (See Japanese page) 
(in English) Redundancy / Failover / Virtualization / Memory / SIP / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 408, NS2011-157, pp. 71-76, Jan. 2012.
Paper # NS2011-157 
Date of Issue 2012-01-19 (NS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NS2011-157

Conference Information
Committee NS  
Conference Date 2012-01-26 - 2012-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Ryukyu University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network Software, Network Application, SOA/SDP, NGN, IMS, API, Grid 
Paper Information
Registration To NS 
Conference Code 2012-01-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Scaling-Up Network Servers in N:1 Redundant Systems by Using I/O Virtualization 
Sub Title (in English)  
Keyword(1) Redundancy  
Keyword(2) Failover  
Keyword(3) Virtualization  
Keyword(4) Memory  
Keyword(5) SIP  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Jun Suzuki  
1st Author's Affiliation NEC (NEC)
2nd Author's Name Takayuki Miyagaki  
2nd Author's Affiliation NEC (NEC)
3rd Author's Name Madoka Komatsubara  
3rd Author's Affiliation NEC (NEC)
4th Author's Name Kazuteru Ohmori  
4th Author's Affiliation NEC (NEC)
5th Author's Name Hiroshi Baba  
5th Author's Affiliation NEC (NEC)
6th Author's Name Kazuhiro Egashira  
6th Author's Affiliation NEC (NEC)
7th Author's Name Hiroshi Shimamoto  
7th Author's Affiliation NEC (NEC)
8th Author's Name Masaki Tachibana  
8th Author's Affiliation NEC (NEC)
9th Author's Name Katsuyuki Akizuki  
9th Author's Affiliation NEC Communication Systems (NCOS)
10th Author's Name Satoshi Tsuchiya  
10th Author's Affiliation NEC Communication Systems (NCOS)
11th Author's Name Youichi Hidaka  
11th Author's Affiliation NEC (NEC)
12th Author's Name Junichi Higuchi  
12th Author's Affiliation NEC (NEC)
13th Author's Name Takashi Yoshikawa  
13th Author's Affiliation NEC (NEC)
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Speaker Author-1 
Date Time 2012-01-26 13:40:00 
Presentation Time 20 minutes 
Registration for NS 
Paper # NS2011-157 
Volume (vol) vol.111 
Number (no) no.408 
Page pp.71-76 
#Pages 6 
Date of Issue 2012-01-19 (NS) 

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