Data Centers Investigate

Towards Proactive Resource Management in Virtualized Datacenters

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Executive Summary

Proactive resource management involves taking actions to make resources available for upcoming load spikes. Proactive resource management is highly desirable for managing resources in a multitenant cloud where it is common to have hot-spots at some locations, while still having spare resources scattered throughout the datacenter. Inability to quickly use fragmented spare resources in a datacenter during load spikes causes administrators to do host-level over-provisioning. Running hosts at low utilization leads to lower consolidation ratios directly impacting the bottom-line. In this paper, the authors present key challenges in doing proactive resource management in virtualized environments.

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