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Advances, Systems and Applications

Journal of Cloud Computing Cover Image

Table 6 Notation summary

From: A novel coordinated resource provisioning approach for cooperative cloud market

P Number of reservation contracts offered by cloud market
T/t Total number of stages of collected demand vector
h Duration of each stages, ideally in hour basis
VmDt VM instance Demand vector for a stage ‘t’
C(f) Upfront or one time reservation cost of reserved instance
C(r) Resource usage cost for reserved VM instances per hour
C(o) Resource usage cost for on-demand VM instances per hour
vm(r) Number of reserved VM instances
vmt(r) Number of reserved VM instances for a stage ‘t’
vm(u) Total number of usage VM instances
vm(o) Number of on-demand VM instances
vm(D) Cloud user request demand vector for a duration ‘T’
vm(d) Cloud user request demand vector for a duration ‘t’
Totc Total cost corresponding to demand vector ‘Vm(D)’
vmDsort Sorted cloud user demand vector for a duration ‘T’
TotDc Total cost of demand vector
TotDjsort Total cost of sorted demand vector
Tc Total cost of usage resources of all cloud users
R-cost Reserve VM instance cost for entire contract period
U-cost Usage VM instance cost per slot
O-cost Ondemand VM instance cost per slot