Abstract:
In this paper, a three level resource management
system for virtualized data center is
presented. Three levels are defined as vitrual
machine level controller (VLC), host level controller
(HLC) and central level controller (CLC).
When ideal resources are available, VLC and
HLC can perform resource management. In the
case of overloading or underloading condition at
a host, CLC manages resources by giving migration
decisions. This paper presents an evaluation
model for the decision support of VM migration
in VDC based on the analytical hierarchy
process (AHP) and the technique for order preference
by similarity to ideal solution (TOPSIS)
under fuzzy environment. VM and target server
selections are multi-criteria decision making
problems. AHP is used for criteria weight consistency
checking and Fuzzy TOPSIS is used for
final ranking. The numerical evaluation is conducted
to illustrate the utilization of the model.
