Virtual Machine Replica Placement Using a Multiobjective Genetic Algorithm

Table 2

Summary of the symbols that are used in our model.

	Number of VMs
	Number of replica for individual VM
	Total number of replicas for all VM,
	It represents a set of VM
	It represents
	It represents the VM and replica. and ∈ , if , then its the primary VM
	The CPU capacity of
	The memory capacity of
	Number of PMs
	Number of PMs hosted by VMs
	It represents a set of PM
	It represents the PM,
	The current CPU usage of is equal to the sum of all in
	The current memory usage of is equal to the sum of all in
	The CPU capacity of
	The memory capacity of
	Solution
	The best solution
	Number of generation
	Number of population