Anmerkungen:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Beschreibung:
This deliverable describes the final version of the optimization model and algorithms implemented in CactoOpt. The model and algorithms include description of the implemented autoscaling algorithms, their integration with the CACTOS toolkits, and related performance results. In addition, the document describes research results obtained within CACTOS. There are five optimization capabilities of CactoOpt that can be performed on the logical (software) level of data center management: initial placement of virtual machines, migration of virtual machines, shut down of physical machines for energy savings, horizontal scaling, and vertical scaling. Using these four actuators, CactoOpt optimizes the power, performance, and cost tradeoffs of applications running on CACTOS enabled datacenters. The four main actuators enable CactoOpt to optimize for a wide range of scenarios including consolidation, and load balancing. This document elaborates the advances within CactoOpt since D3.3. This includes the improvements in the optimization models, and a thorough description of the new vertical scaling algorithms, horizontal scaling algorithms, fault-tolerant scheduling algorithms, and power capping and management, as well as, the interplay of all optimization capabilities.