Compute plans

Overview of compute plans

The "pay-as-you-go + compute plan" billing method combines the flexibility of pay-as-you-go with the cost savings of a subscription.

Compute plan specifications and pricing

ApsaraDB for MongoDB uses the unit CU (Capacity Unit) × H, or "unit" for short, to measure the resource capacity that a compute plan provides. The unit price is CNY 21 per unit. ApsaraDB for MongoDB offers compute plans ranging from 50 to 20,000 units across four different tiers. The higher the tier, the greater the discount. For plans in the same tier, a shorter effective period results in a greater discount.

Compute plan consumption rules

Consumption formula: Region coefficient × Instance node coefficient × Units consumed per hour by the instance type × Usage duration (hours)

Example

The following tables list the region coefficients, instance node coefficients, and units consumed per hour by instance type.

Purchase a compute plan

1. Log on to the ApsaraDB for MongoDB console.

2. In the navigation pane on the left, click Replica Set Instances.

3. On the ReplicaSet Instances page, click Purchase Compute Plan.

4. Set the following parameters to configure the compute plan.

   Parameter	Description
   Compute Plan Tier	Select the capacity range of the compute plan in units (CU×H). The larger the capacity, the greater the discount. For more information, see Compute plan specifications and pricing.
   Compute Plan Capacity	The capacity of the compute plan in units (CU×H).
   Subscription Duration	The effective period of the compute plan. The compute plan takes effect immediately after purchase. Each plan is valid for 6 months or 1 year. After a plan expires, its remaining capacity becomes invalid.
   Quantity	The number of compute plans to purchase.

5. Click Buy Now.

6. Read the Terms of Service and click Pay.

View compute plan offset usage

1. Go to the Resource Plan page.

   You can go to the Resource Plan page in either of the following ways:

   • Method 1:

     1. Log on to the ApsaraDB for MongoDB console.

     2. In the navigation pane on the left, click Compute Plan.

   • Method 2:

     1. Log on to Expenses and Costs.

     2. In the navigation pane on the left, choose Account > Resource Plan.

2. On the Resource Plan page, set Resource Dimension to Resource Plan.

3. On the Resource Instance Management page, set Resource Dimension to Resource Plan.

4. View the details of the compute plan.

   You can view the following information on the Instance Summary or Usage Details tab:

   • Instance Summary: On this page, you can view the Status, Total Capacity, Remaining Capacity, Effective Time, and Expiration Time of the compute plan.

   • Usage Details: On this page, you can view the detailed usage of the compute plan. This includes Offset Time, Remaining Capacity Before Offset, Offset Amount, Remaining Capacity After Offset, Offset Instance ID, Offset Billable Item, and Original Usage of Resource Instance.

   Note

   For instances whose fees are offset by a compute plan, you can still view the pay-as-you-go billing records in Billing Details. However, the payable amount for these bills is 0 because the fees have been offset by the compute plan.