Simple Application Server provides various resource plans that allow you to consume data transfer quotas each month. Simple application servers can continue to transfer data after the quotas are exceeded. You must pay for the excess data transfers on a pay-as-you-go basis. This topic describes how excess data transfers are billed and how the state of a simple application server for which a payment is overdue changes.

Overview

Simple Application Server provides data transfer quotas. The fees for data transfers within these quotas are included in resource plans. You are charged for data transfers that exceed the quotas. Take note of the following items:
  • You are charged for outbound data transfers from a simple application server over the Internet. You are not charged for inbound data transfers to a simple application server over the Internet.
  • Outbound data transfers from a simple application server to another Alibaba Cloud service over the Internet consume the data transfer quotas that are included in resource plans. If the quotas are exceeded, you are charged for the excess data transfers.
  • You are not charged for data transfers between simple application servers within the same virtual private cloud (VPC).

Data transfer quotas

Before you use the data transfer quota that is included in a resource plan of a simple application server, take note of the following items:
  • The quota applies only to the server and is not shared by other servers.
  • Alibaba Cloud resets the data transfer quota for the server on the first day of each month. After the quota is reset, the server calculates data transfers again.
  • When the quota usage exceeds 50%, 80%, or 95%, Alibaba Cloud sends you a notification.
    Note You can view the quota usage in the Simple Application Server console. For more information, see the "Example: View the data transfer details of a server" section in View server information.
  • Some resource plans do not include monthly data transfer quotas. For example, a resource plan can consist of 1 vCPU, 1 GB memory, a 1 Mbit/s bandwidth, a 20 GB standard SSD, and no monthly data transfer quota. These resource plans impose limits only on public bandwidths and do not calculate your data transfers.

Excess data transfers

After the monthly data transfer quota in a resource plan of a simple application server is used out, excess data transfers from the server are billed on a pay-as-you-go basis and automatically paid for by using your default payment method. For more information about the pricing of specific resource plans and data transfers that exceed the quotas provided by resource plans, visit the Pricing tab of the Simple Application Server page.

The following table shows an example of how to calculate the fees for excess data transfers.
Example Plan A Fees for excess data transfers
An enterprise purchased Plan A of Simple Application Server. The server ran for one month and consumed 1,034 GB. Plan specifications:
  • Region: China (Hong Kong)
  • USD 3.5/month
  • CPU: 1 core
  • Memory: 0.5 GB
  • Monthly data transfer quota: 1 TB
  • Capacity of standard SSD: 20 GB
  • Maximum bandwidth: 4 Mbit/s
The formula for calculating the fees for excess data transfers: Unit price of data transfers × Excess data transfers.
Note 1 TB = 1,024 GB.

The Pricing tab of the Simple Application Server page shows that the unit price of data transfers in the China (Hong Kong) region is USD 0.153 per GB. This way, the fees for the excess data transfers are calculated as 0.153 × (1,034 - 1,024) = 1.53.

Payment and overdue payment for excess data transfers

Excess data transfers are billed on the pay-as-you-go basis. Excess data transfers are billed and automatically paid for on the hour. Make sure that you have sufficient balance in your Alibaba Cloud account to pay for excess data transfers. Otherwise, the payment becomes overdue, and Alibaba Cloud sends you a notification.

If a payment becomes overdue for a simple application server, the server is stopped and disabled. You must complete the payment before you can re-enable the server.
  • Before the server expires, it is stopped and disabled. You can re-enable the server after you complete the payment.
  • Fifteen days after the server expires, the state of the server changes to Disabled. When the server is in the Disabled state, all data is retained for a 15-day period. You must renew the server and complete the payment before you can re-enable the server. If you do not renew the server within this period, the server is released and the data cannot be recovered. For more information, see Renew a server.