Title :
Expansion of CTRON interface for fault-tolerant system
Author :
Nakahara, Shin-ichi ; Gohhara, Juni-chi ; Kohama, Haruo ; Nakao, Masayoshi
Author_Institution :
NTT Software, Kanagawa, Japan
Abstract :
Nonstop systems such as switching systems and gateway systems must be “Realtime-Fault-Tolerant”, with high real-time capability and high availability. The CTRON interface has been specified for real time communication processing. This paper considers the CTRON specification´s adaptability to fault tolerant systems from the following point of view, and then clarifies some problems: management of device status; detection of changes in device configuration; relationship between failed physical devices and logical devices. Finally the authors propose nine new functions (system calls) and asynchronous report interfaces (message boxes) to solve the problems
Keywords :
fault tolerant computing; operating systems (computers); real-time systems; CTRON; CTRON interface; asynchronous report interfaces; availability; device configuration; failed physical devices; fault tolerant systems; fault-tolerant system; gateway systems; management of device status; message boxes; real-time capability; switching systems; system calls; Availability; Communication system software; Computer aided manufacturing; Fault tolerance; Fault tolerant systems; Hardware; Laboratories; Real time systems; Redundancy; Switching systems;
Conference_Titel :
TRON Project International Symposium, 1994., Proceedings of the 11th
Conference_Location :
Tokyo
Print_ISBN :
0-8186-6775-3
DOI :
10.1109/TRON.1994.378612
