Changing Pay-per-Use to Yearly/Monthly

Scenarios

Pay-per-use: a postpaid billing mode, in which an ECS is billed by usage duration. You can provision or delete such an ECS at any time.
Yearly/Monthly: a prepaid billing mode, in which an ECS is billed based on the purchased duration. This mode is more cost-effective than the pay-per-use mode and is suitable for predictable usage.

If you need to use an ECS for a long time, you can change its billing mode from pay-per-use to yearly/monthly to reduce costs by referring to the content in this section.

For certain associated resources (such as EVS disks and EIPs), their billing modes can be changed together with the ECS to yearly/monthly.
For associated resources whose billing modes cannot be changed together with the ECS to yearly/monthly, they will retain their original billing modes. For details, see Billing Mode Change Rules for Associated Resources.
ECSs created using ISO images do not support the billing mode change from pay-per-use to yearly/monthly.

Billing Mode Change Rules for Associated Resources

Resources associated with ECSs include disks and EIPs. Table 1 and Table 2 show the billing mode change rules for these associated resources.

**Table 1** Billing mode change rules for disks attached to an ECS
Disk Type	Billing Mode	Shared	Changed Together with ECS to Yearly/Monthly	Measure
Local disks	N/A	No	N/A	None
DSS/DESS disks	Yearly/Monthly (the same as the storage pool billing mode)	No	N/A	None
EVS disks	Pay-per-use	No	Yes (not supported for extreme SSD V2 disks)	None
EVS disks	Pay-per-use	Yes	No	On the EVS console, change the billing mode of EVS disks from pay-per-use to yearly/monthly. For details, see Billing for Disks.
EVS disks	Yearly/Monthly	No	No	The billing mode is already yearly/monthly. No actions are required.
EVS disks	Yearly/Monthly	Yes	No	The billing mode is already yearly/monthly. No actions are required.

**Table 2** Billing mode change rules for EIPs bound to an ECS
Resource	Billing Mode	Billed By	Bandwidth Type	Changed Together with ECS to Yearly/Monthly	Measure
EIP	Pay-per-use	Bandwidth	Dedicated	Yes	None
EIP	Pay-per-use	Traffic	Dedicated	No	On the EIP console page, change the billing mode from billing by traffic (pay-per-use) to billing by bandwidth (pay-per-use) first and then to yearly/monthly. For details, see Changing EIP Billing Mode.
EIP	Pay-per-use	Bandwidth	Shared	No	On the EIP console, change the billing mode from pay-per-use to yearly/monthly. For details, see Changing EIP Billing Mode.
EIP	Yearly/Monthly	Bandwidth	Dedicated or shared	No	The billing mode is already yearly/monthly. No actions are required.

Prerequisites

The selected ECS is billed on a pay-per-use basis.
The target ECS must be in Running or Stopped state.

Procedure

Log in to the management console.
Click in the upper left corner and select a region and project.
Click . Under Compute, choose Elastic Cloud Server.
On the Elastic Cloud Server page, select the target ECS.
Choose More > Change to Yearly/Monthly in the Operation column.
You can batch change the billing modes of multiple ECSs. To do so, perform the following operations:
1. Select the target ECSs.
2. Choose More > Manage Billing > Change to Yearly/Monthly above the ECS list.
Confirm the ECS details, specify the required duration, and pay for the order.