AnalyticDB Compute Unit (ACU)-hour plans are subscription resource plans for AnalyticDB for MySQL. During the validity period of an ACU-hour plan, the resources consumed by Enterprise Edition, Basic Edition, and Data Lakehouse Edition clusters are offset by the plan on an hourly basis. This topic describes ACU-hour plans and how to use them.
Offset description
Applicable items
Reserved resources and elastic resources of pay-as-you-go Enterprise Edition and Basic Edition clusters.
Reserved computing resources, reserved storage resources, and elastic resources of pay-as-you-go Data Lakehouse Edition clusters.
Elastic resources of subscription Enterprise Edition, Basic Edition, and Data Lakehouse Edition clusters.
Offset rules
An ACU-hour plan can offset only the resources consumed by clusters in the same region.
One ACU-hour plan can be shared by multiple clusters in the same region.
Resources are offset by ACU-hour plans in the following order of priority: elastic resources of pay-as-you-go Enterprise Edition clusters = elastic resources of pay-as-you-go Basic Edition clusters = elastic resources of pay-as-you-go Data Lakehouse Edition clusters > reserved computing resources of pay-as-you-go Data Lakehouse Edition clusters > reserved storage resources of pay-as-you-go Data Lakehouse Edition clusters > reserved resources of pay-as-you-go Enterprise Edition clusters = reserved resources of pay-as-you-go Basic Edition clusters > elastic resources of subscription Enterprise Edition clusters = elastic resources of subscription Basic Edition clusters = elastic resources of subscription Data Lakehouse Edition clusters.
During the validity period of an ACU-hour plan, the resources consumed by clusters are offset by the plan on an hourly basis. Any resource consumption that exceeds the plan's capacity is billed on a pay-as-you-go basis.
An ACU-hour plan is valid for one month. After an ACU-hour plan expires, any remaining resources are forfeited. For example, an ACU-hour plan purchased on April 20 expires at 00:00 on May 21.
You can renew ACU-hour plans and purchase multiple plans to use at the same time. You cannot unsubscribe from, upgrade, or downgrade ACU-hour plans.
Offset examples
Example 1
A subscription Data Lakehouse Edition cluster is purchased in the China (Hangzhou) region for three months.
Reserved computing resources: 32 ACUs.
Reserved storage resources: 24 ACUs.
Elastic resources: A resource scaling plan for an Interactive resource group scales up resources by 16 ACUs for 5 hours each time. The plan runs four times per month.
ACU-hour plan: One plan with a capacity of 1,000 ACU-hours is purchased for three months.
Offset method: For a subscription cluster, an ACU-hour plan can offset only elastic resources. During the three-month subscription, 1,000 ACU-hours are allocated each month to offset the 320 ACU-hours of elastic resources consumed by the cluster. The remaining 680 ACU-hours for each month are forfeited.
Example 2
A pay-as-you-go Data Lakehouse Edition cluster is used in the China (Hangzhou) region for one month.
Reserved computing resources: 32 ACUs.
Reserved storage resources: 24 ACUs.
Elastic resources: A Job resource group with 0 reserved resources is created. This resource group is used to run a Spark job. The job is configured with a resource specification of 2 cores and 4 GB of memory (equivalent to 2 × 0.8 ACUs) and runs for 10 hours.
ACU-hour plan: Three plans, each with a capacity of 10,000 ACU-hours, are purchased for one month.
The ACU-hours consumed by the cluster in one month are calculated as follows:
Reserved computing resources: 32 ACUs × 30 days × 24 hours = 23,040 ACU-hours.
Reserved storage resources: 24 ACUs × 30 days × 24 hours = 17,280 ACU-hours.
Elastic resources: 2 × 0.8 ACUs × 10 hours = 16 ACU-hours.
Total ACUs consumed = 23,040 ACU-hours + 17,280 ACU-hours + 16 ACU-hours = 40,336 ACU-hours.
Offset method: For a pay-as-you-go cluster, an ACU-hour plan can offset reserved computing resources, reserved storage resources, and elastic resources. The ACU-hour plans offset a total of 30,000 ACU-hours. The remaining 10,336 ACU-hours are billed on a pay-as-you-go basis.
Billing
Billing method
ACU-hour plans are available only on a subscription basis.
Prices
The larger the capacity of the ACU-hour plan you purchase, the more you save.
The actual prices on the product purchase page apply.
Region | ACU-hour plan capacity (ACU-hours) | Duration | List price (USD/ACU/hour) | Discount | Discounted price (USD/ACU/hour) |
The Chinese mainland | 200 | 1 month | 0.04615 | 98% | 0.04525 |
1,000 | 95% | 0.04384 | |||
5,000 | 90% | 0.04154 | |||
10,000 | 85% | 0.03923 | |||
50,000 | 80% | 0.03692 | |||
| 200 | 1 month | 0.06923 | 98% | 0.06785 |
1,000 | 95% | 0.06577 | |||
5,000 | 90% | 0.06231 | |||
10,000 | 85% | 0.05885 | |||
50,000 | 80% | 0.05538 | |||
US (Silicon Valley) | 200 | 1 month | 0.06461 | 98% | 0.0633 |
1,000 | 95% | 0.06138 | |||
5,000 | 90% | 0.05815 | |||
10,000 | 85% | 0.05492 | |||
50,000 | 80% | 0.05168 |
Purchase an ACU-hour plan
Log on to the AnalyticDB for MySQL console.
In the navigation pane on the left, click Clusters.
In the upper-right corner of the page, click Create Cluster.
In the Product Type section, click ACU-hour Plan.
Configure the parameters and click Buy Now.
Parameter
Description
Plan Type
ACU-hour plan.
Region
Select the region where your Enterprise Edition, Basic Edition, or Data Lakehouse Edition cluster resides.
ACU Package Specifications
Supported specifications:
200
1,000
5,000
10,000
50,000
The larger the capacity of the ACU-hour plan, the more you save.
Quantity
Select the number of ACU-hour plans.
Subscription Duration
Select the subscription duration for the ACU-hour plan.
A deduction period starts from the time of successful purchase and ends at the same time on the same day of the next month. At the beginning of each deduction period, a fixed amount of resources (ACU plan specification × Quantity) is allocated. At the end of the deduction period, the remaining resources for that period do not roll over to the next period.
For example, if you purchase one ACU-hour plan with a specification of 1,000 ACU-hours for three months at 10:00 on May 4, the offset quota is as follows:
From 10:00 on May 4 to 10:00 on June 4, the available quota is 1,000 ACU-hours.
From 10:00 on June 4 to 10:00 on July 4, the available quota is 1,000 ACU-hours.
From 10:00 on July 4 to 10:00 on August 4, the available quota is 1,000 ACU-hours.
On the Confirm Order page, confirm the order information, read and select the Terms of Service, and then complete the payment. After you complete the payment, the ACU-hour plan takes effect immediately.
View the offset amount of an ACU-hour plan
Log on to User Center.
In the navigation pane on the left, choose Account > Resource Packages.
On the Resource Packages page, view the details of the target ACU-hour plan, such as the Status, Total Amount, and Remaining Amount.
Renew an ACU-hour plan
Log on to User Center.
In the navigation pane on the left, choose Account > Resource Packages.
On the Resource Packages page, find the target ACU-hour plan and click Renew in the Actions column.