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The paper considers functions of the informational technologies which are implemented in the modern systems for monitoring complex industrial facilities. It substantiates the task to develop systems for monitoring technical state of the electrical equipment of the rolling mill units. The hardware configuration and software of the monitoring system are proven to be determined by technical parameters...
A distributed file system is a scalable and reliable storage system. However, it has a problem that performance of the system is limited because a large number of metadata operations are concentrated in a single Metadata Server (MDS). To solve this problem, it is effective to cache metadata in client side memory but, consistency of the metadata cache needs to be guaranteed. There are mainly two methods...
As the modern society becomes increasingly dependent on software, how to develop Trustworthy Software(TS) systems is considered a critical issue by academia, government and industry. The domain of our work focused on the reliability research on UNIX system, which is the famous and widely used operation system in the world, and adopts C/S software architecture. However, when the user remote login the...
Call Detail Records (CDR) are the computer records produced by a telephone switch containing details of calls that passed through it. CDR collection module, which is responsible for collecting CDR in the billing switches, is the key sub-module of the telecommunications billing system. If the original collection data is not accurate, it will be impossible to calculate bill accurately based on them...
The interest in system survivability under a variety of attacks, faults or accidents has been on the rise in recent years and survivability is receiving increasing attention as a key property of the mission critical system. Distributed systems are vital for all and it is a critical task to make such systems secure and survive. Survivability in the presence of attacks or failures depends on three key...
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