Introduction

Currently, MRS supports the yearly/monthly and pay-per-use billing mode billing modes to meet user requirements in different scenarios.

Yearly/Monthly: The duration ranges from one month to one year. The minimum cluster duration is 1 month and the maximum available cluster duration is 1 year.
Pay-per-use: Nodes are charged by actual duration of use, with a billing cycle of one hour.

Table 1 lists the differences between the two charging modes.

**Table 1** Billing Mode
Billing Mode	Yearly/Monthly	Pay-per-use	Reference
Payment	Prepaid Billed by the required duration specified in your order	Postpaid You are charged based on the actual usage duration of an MRS cluster.	-
Billing period	You are charged based on the subscription period. The minimum duration is one month and the maximum duration is one year.	Billed by second and settled by hour	-
Billing items	MRS management fee and IaaS infrastructure resource fee (ECS and EVS)	MRS management fee and IaaS infrastructure resource fee (ECS and EVS)	Billing Item
Billing mode change	-	Can be changed to yearly/monthly.	Pay-per-Use to Yearly/Monthly
Specification change	Specifications can be modified, which affects cluster charging. MRS supports the following changes: Instance Specifications Node Quantity	Specifications can be modified, which affects cluster charging. MRS supports the following changes: Instance Specifications Purchase Quantity	-
Application Scenarios	This cost-effective mode is ideal when the duration of ECS usage is predictable. The yearly/monthly mode is recommended for long-term users.	This mode is ideal when you want more flexibility and control on ECS usage.	-