EAN: 9783034604321

Bilder-Quelle: discount24.de - Sport-Freizeit

The complexity of Information Technology (IT) systems has been steadily incre- ing in the past decades. In October 2001 IBM released the Autonomic Computing Manifesto observing that current applications have reached the size of millions of lines of code while physical infrastructures include thousands of heterogeneous servers requiring skilled IT professionals to install con?gure tune and maintain. System complexity has been recognized as the main obstacle to the further advan- ment of IT technology. The basic idea of Autonomic Computing is to develop IT systems that are able to manage themselves as the human autonomic nervous system governs basic body functions such as heart rate or body temperature thus freeing the conscious brain- IT administrators-from the burden of dealing with low-level vital functions. Autonomic Computing systems can be implemented by introducing autonomic controllers which continuously monitor analyze plan and execute (the famous MAPE cycle) recon?guration actions on the system components. Monitoring acti- ties are deployed to measure the workload and performance metrics of each running component so as to identify system faults. The goal of the analysis activities is to determine the status of components from the monitoring data and to forecast - ture conditions based on historical observations. Finally plan and execute activities aim at deciding and actuating the next system con?guration for example deciding whether to accept or reject new requests determining the best application to servers assignment in order to the achieve the self-optimization goals.

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22.12.2025 um 01:27 Uhr

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