/ I/O-based high availability through middleware in the COTS RTOS

摘要

In the case of a CDMA-based IMT-2000 system that provides a multimedia service, high availability (HA) of the control station is an important problem that must be performed.;The present invention provides a method of obtaining high availability using a commercially available real-time operating system, unlike the method of using a real-time operating system developed in-house on self-developed hardware taken by existing systems.;In the present invention, since the kernel of the operating system cannot be manipulated as a commercial real-time operating system is used, input / output of two active nodes and standby nodes to implement high availability using a software chip concept. Use a method of monitoring (I / O). However, this method uses Concurrent Write Memory as the HA channel to compensate for the high availability of high-traffic systems, which makes it difficult to ensure high availability using only software-type middleware. do. As described above, in the present invention, developers who develop application programs by using a commercial real-time operating system can shorten the development time by using the latest development environment and operating system, and achieve high availability at an appropriate level without incurring high costs.