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Having enabled metering on the targets, the next step is to define some charge plans. These define the resources that should be charged for and their associated rates.The administrator has the choice between two types of charge plan.Firstly, there is the universal charge plan. This can be used with any target type in chargeback and includes rates for three basic resources: CPU, Memory and Storage.There may be situations when the chargeback administrator also wants to define charges for target specific attributes, such as VM size, weblogic requests or database version. In these situations the administrator must setup an extended charge plan. This allows for rates to be configured for target type specific metrics in addition to cpu, memory and storage.
Rates for charge plans can be viewed for all previous months but can only be updated for the current month.
To setup an extended charge plan, the administrator adds target specific charge items and configures their rates. They can add fixed charges, such as a flat rate of $50/month for a host, configuration charges, such as an additional $10 if Windows OS is detected or a usage based charge, such as $0.01 for each weblogic user request.CPU, Memory and Storage rates can be set using the universal rate adjustment. Setting this to 0 will mean ignore the universal rate, setting it to 2 will mean charge double the universal rate.
The next configuration step is to setup a cost center hierarchy. Cost Centers are required to assign the charges for the metered targets.This hierarchy can be defined manually by the administrator or where large numbers of cost centers are concerned it can be imported from LDAP.This hierarchy is also used for reporting rollup and drilldown.Cloud Self-service users automatically appear in a default cost center within this hierarchy. They can then be assigned from the default cost center into another cost center elsewhere in the hierarchy, such as one that relates to their department.
The final steps in the setup of chargeback are charge plan and cost center assignment.Charge plan assignment determines which charge plan should be used to calculate charges for a target. The administrator could chose to assign either the universal plan or an extended plan. As shown previously, the charge plan includes a number of charge items and their associated rates.Secondly, the target is assigned to a cost center. This determines which cost center the calculated charges should go to.Assignment can be done to composite targets such as groups or systems. In this case the assignment propagates to all members of the composite target.In self-service cloud environments, targets are likely to be rapidly added and removed, so it would not be practical for the chargeback administrator to manually assign plans to targets and targets to cost centers. Hence, for self-service created targets, both of these assignments are taken care of automatically. The charge plan is inherited from the VM or DB zone and the cost center is set as the self-service owner of the target.