An Adaptive Data Placement Architecture in Multicloud Environments

Algorithm 2

Algorithm TDM: transform data placement into an MDP.

	Input: Data center specification, , DAF, , the required availability, , the required data retrieval latency, .
	Output: The state matrix, , the transfer matrix, .
(1)	Calculate all -combinations of data centers .
(2)	for alldo
(3)	Calculate availability of through (1);
(4)	Calculate latency of through (8);
(5)	if and then
(6)	for to do
(7)	Calculate the base cost of through (5);
(8)	;
(9)	end for
(10)	end if
(11)	end for
(12)	for alldo
(13)	for alldo
(14)	Calculate the migration cost between and through (6);
(15)	end for
(16)	end for
(17)	return, ;