Help Center/ Scalable File Service/ Service Overview/ Billing
Updated on 2025-12-17 GMT+08:00
View PDF
Share

Billing

Billing Items

Pay-per-use billing is preset by default. You can create a general-purpose file system for free and pay only for the used storage space based on for how long you use the file system. You will be billed for the file system by the hour, and there is no minimum cost. Any usage period of less than an hour is rounded up to an hour.

Table 1 General-Purpose File System billing model

Category

Billing Item

Billing Factor

Billing Description

Billing Formula

Billing Mode

Storage

Standard storage

Storage space

Billed based on the used capacity and usage period of the general-purpose file system

Storage price = Unit price per GB x Used capacity x Usage period

Pay-per-use

Resource package

Infrequent access storage

Storage space

Billed based on the used capacity and usage period of the general-purpose file system

Storage price = Unit price per GB x Used capacity x Usage period

NOTE:

When calculating the price of a general-purpose file system, if the preset 14 days is used for Transition to Infrequent Access After (Days) in the file system lifecycle rule, you will be billed for 14 days based on the standard storage billing. For the usage after 14 days, you will be billed based on the infrequent access storage billing.

Pay-per-use

Traffic

Infrequent access

Write traffic

Billed based on the volume of the write traffic

Write traffic price = Unit price per GB x Write traffic volume

Pay-per-use

Read traffic

Billed based on the volume of the read traffic

Read traffic price = Unit price per GB x Read traffic volume

Pay-per-use

The price is calculated based on the number of resources you use and the pricing basis. The price is accurate to two decimal places.

In the Price Calculator, 1 TB equals to 1,024 GB.

Billing Modes

SFS supports the following billing modes: pay-per-use and resource package. For details about how to purchase SFS, see How Do I Purchase SFS?

For details about the billing standards, see Product Pricing Details.

In addition, you can use the Price Calculator to quickly calculate an estimated price for the resources or resource packages that you select.

Changing Billing Mode

  • Resource packages use a prepaid billing mode. You are billed based on the subscription duration you specify. This mode is ideal when the resource use duration is predictable. A longer subscription often means a lower cost.
  • Pay-per-use is a postpaid billing mode. You are billed based on the billing items of specific general-purpose file systems and can purchase or delete file systems at any time. Expenditures are deducted from the account balance.

When using general-purpose file systems, package capacity within the same region is used preferentially. Multiple general-purpose file systems can share a resource package.

Renewal

For more information about renewal, including auto-renewal, exporting the renewal list, and changing subscriptions, see Renewals.

Expiration

After a resource package expires, you will be billed for subsequent resource usage on a pay-per-use basis. If you do not pay the amount due timely, the system processes the resource based on Resource Suspension and Release. If the resource package is not renewed before the retention period expires, the system automatically deletes the resource. For details about how to repay arrears, see Making Payments (Postpaid Direct Customers).

Overdue Payment

Possible causes of overdue payment:

If the usage of your expenditure quota reaches or exceeds 100% and you do not make payments in a timely manner, a grace period starts.

Service status and operation restrictions when an account is in arrears:

Your general-purpose file systems are retained after your account is in arrears and file systems enter a retention period, but you cannot use the file systems. For details about how to repay arrears, see Making Payments (Postpaid Direct Customers). If the outstanding payment is not cleared before the retention period ends, data stored in the file systems will be deleted and cannot be recovered.

For details about the retention period, see Service Suspension and Resource Release.