Availability requirement for fault management server

Author

Han, Jame J. ; Sun, Hairong ; Levendel, Haim

Author_Institution

High Availability & Reliability Technol. Center, Motorola, Elk Grove Village, IL, USA

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

468

Lastpage

473

Abstract

In this paper, we examine the availability requirement for the fault management server in high-availability communication systems. According to our study, we find that the availability of the fault management server does not need to be 99.999% in order to guarantee a 99.999% system availability as long as the fail-safe ratio (the probability that the failure of the fault management server will not bring the system down) and the fault coverage ratio (the probability that the failure in the system can be detected and recovered by the fault management server) are sufficiently high. Tradeoffs can be made among the availability of the fault management server, the fail-safe ratio and the fault coverage ratio to optimize system availability. A cost-effective design for the fault management server is proposed in this paper

Keywords

software fault tolerance; system recovery; availability requirement; cost-effective design; fail-safe ratio; fault coverage ratio; fault management server; high-availability communication systems; system availability; Availability; Computer network management; Energy management; Fault detection; Memory management; Network servers; Power supplies; Power system management; Sun; Technology management;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Software and Applications Conference, 2001. COMPSAC 2001. 25th Annual International

Conference_Location

Chicago, IL

ISSN

0730-3157

Print_ISBN

0-7695-1372-7

Type

conf

DOI

10.1109/CMPSAC.2001.960654

Filename

960654