AnalyticDB:ACU-hour plans

How offset works

Offset scope

ACU-hour plans offset different resource types depending on the cluster billing method:

Offset rules

• The plan and the cluster must be in the same region.

• One plan can offset multiple clusters in the same region.

• Multiple plans can be purchased and used at the same time.

• Resources beyond the plan are billed on a pay-as-you-go basis.

• Each plan has a validity period of one month. Unused ACU-hours expire at the end of each billing cycle and do not carry over. For example, a plan purchased on April 20 becomes invalid at 00:00:00 on May 21.

• ACU-hour plans cannot be refunded, upgraded, or downgraded.

Offset priority

When a plan offsets resources, the system processes resource types in the following order:

Note: Resource types at the same priority level are offset equally.

Purchase an ACU-hour plan

1. Log on to the AnalyticDB for MySQL console.

2. In the left-side navigation pane, click Clusters.

3. In the upper-right corner of the page, click Create Cluster.

4. Set Product Type to ACU-hour Plan.

5. Configure the following parameters and click Buy Now.

   Parameter	Description
   Plan Type	ACU-hour plan.
   Region	The region where your cluster (Enterprise Edition, Basic Edition, or Data Lakehouse Edition) resides.
   Resource Plan Specification	The size of the plan. Valid values: 200, 1,000, 5,000, 10,000, and 50,000 ACU-hours.
   Quantity	The number of ACU-hour plans to purchase.
   Subscription Duration	The duration in months. Each billing cycle runs from the purchase date and time to the same date and time the following month. At the start of each billing cycle, the plan allocates a fixed quota of ACU-hours (specification x quantity). Unused ACU-hours expire at the end of each billing cycle and do not carry over.

   For example, if a 1,000 ACU-hour plan with a 3-month subscription duration is purchased at 10:00 on May 4:

   • May 4, 10:00 to June 4, 10:00: 1,000 ACU-hours available

   • June 4, 10:00 to July 4, 10:00: 1,000 ACU-hours available

   • July 4, 10:00 to August 4, 10:00: 1,000 ACU-hours available

6. On the Confirm Order page, verify the order details, accept the Terms of Service, and complete the payment. The plan takes effect immediately.

Pricing

ACU-hour plans are available only as subscription purchases.

Chinese mainland

China (Hong Kong) and Singapore

US (Silicon Valley)

View offset details

1. Log on to the Expenses and Costs console.

2. In the left-side navigation pane, click Billing Account > Resource Plans.

3. On the Instances tab, check the Status, Total Capacity, and Remaining Capacity of the ACU-hour plan.

Renew an ACU-hour plan

1. Log on to the Expenses and Costs console.

2. In the left-side navigation pane, click Orders > Renewals.

3. Find the target ACU-hour plan and click Renew in the Actions column.

Billing examples

Example 1: Subscription Data Lakehouse Edition cluster

A subscription Data Lakehouse Edition cluster is purchased in the China (Hangzhou) region with a 3-month subscription duration:

• Reserved computing resources: 32 ACUs

• Reserved storage resources: 24 ACUs

• Elastic resources: A resource scaling plan of the interactive resource group type scales 16 ACUs for 5 hours each time. The plan runs 4 times per month.

• ACU-hour plan: 1,000 ACU-hours with a 3-month subscription duration

Offset result: For subscription clusters, only elastic resources are offset. Monthly elastic consumption is 16 ACUs x 5 hours x 4 times = 320 ACU-hours. The plan offsets 320 ACU-hours each month, and the remaining 680 ACU-hours expire unused.

Example 2: Pay-as-you-go Data Lakehouse Edition cluster

A pay-as-you-go Data Lakehouse Edition cluster is purchased in the China (Hangzhou) region and used for one month:

• Reserved computing resources: 32 ACUs

• Reserved storage resources: 24 ACUs

• Elastic resources: A job resource group with 0 ACUs of reserved resources runs a Spark job that uses 2 cores and 4 GB memory (2 x 0.8 ACUs) for 10 hours.

• ACU-hour plans: Three plans of 10,000 ACU-hours each (total: 30,000 ACU-hours)

Monthly resource consumption:

Offset result: For pay-as-you-go clusters, reserved computing resources, reserved storage resources, and elastic resources are all offset. The plans offset 30,000 ACU-hours, and the remaining 10,336 ACU-hours are billed on a pay-as-you-go basis.