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Storage plans

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ApsaraDB for SelectDB offers storage plans to help you save on costs. You can use storage plans to offset the fees for pay-as-you-go storage resources. This topic describes the basics, pricing, offset factors, and offset rules of ApsaraDB for SelectDB storage plans. It also explains how to purchase, upgrade, renew, and unsubscribe from a storage plan, and how to view offset details.

Important

The fees in this topic are for reference only. For actual fees, refer to the information on the console.

Overview of storage plans

Item

Description

Offset object

Storage resource usage for ApsaraDB for SelectDB instances.

Supported regions

China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Ulanqab), China (Shenzhen), China (Heyuan), China (Guangzhou), China (Chengdu), and China (Hong Kong). Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Philippines (Manila), Thailand (Bangkok), Japan (Tokyo), and South Korea (Seoul). US (Silicon Valley) and US (Virginia). UK (London) and Germany (Frankfurt).

Note

You do not need to specify a region when you purchase a storage plan. By default, the storage plan can be used for offsets in regions where ApsaraDB for SelectDB is available.

Billing method

Subscription.

Supported subscription durations include 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11 months, and 1 and 2 years.

Capacity

The storage capacity of a storage plan ranges from 100 GB to 1,000,000 GB. The default is 200 GB. You can adjust the value in 100 GB increments.

Quantity

You can purchase and use multiple storage plans at the same time.

You can purchase up to 99 items per transaction.

Offset order

The offset order depends on the instance's product type, region, and the storage plan's purchase time and subscription duration. For more information about the offset order, see Offset rules for storage plans.

Upgrade/Downgrade

Only upgrades are supported.

If the total capacity of your storage plans is insufficient for an offset, you can upgrade the storage plans or purchase new ones. For more information about how to upgrade a storage plan, see Upgrade a storage plan.

If the capacity of a storage plan is too large, you can unsubscribe from it. You can also purchase a new storage plan with a suitable capacity after the current one expires. For more information about how to unsubscribe, see Unsubscribe from a storage plan.

Renewal

Renewals are supported.

When you purchase or renew a storage plan, you can choose whether to enable auto-renewal. You can also manually renew the storage plan before it expires. For more information about how to renew a storage plan, see Renew a storage plan.

Unsubscription

Unsubscriptions are supported.

The default refund formula is: Refund amount = Amount paid for the order - (Original price of the order / Actual subscription days of the order) × Used days. For more information, see Unsubscription rules.

For more information about how to unsubscribe, see Unsubscribe from a storage plan.

Pricing of storage plans

Billing method

Instance deployment

Unit price of storage plan

Subscription

Single-zone (locally redundant)

CNY 0.12 per GB/month

Multi-zone (zone-redundant)

CNY 0.15 per GB/month

Offset factors of storage plans

The offset factor of a storage plan varies by region and storage class. Therefore, the offset amount for the same storage resource usage may differ across regions or storage classes.

Region

Storage class

Offset factor

Storage plan offset amount (for 100 GB of storage resource usage)

China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Ulanqab), China (Shenzhen), China (Heyuan), China (Guangzhou), and China (Chengdu)

Standard - locally redundant storage

1

100.000 GB (= 100 GB × 1)

US (Virginia)

Standard - locally redundant storage

1.05

105.000 GB (= 100 GB × 1.05)

Malaysia (Kuala Lumpur), Philippines (Manila), Thailand (Bangkok), and South Korea (Seoul)

Standard - locally redundant storage

1.083

108.300 GB (= 100 GB × 1.083)

China (Hong Kong), Singapore, Indonesia (Jakarta), US (Silicon Valley), Germany (Frankfurt), UK (London), and Mexico

Standard - locally redundant storage

1.133

113.300 GB (= 100 GB × 1.133)

Japan (Tokyo)

Standard - locally redundant storage

1.183

118.300 GB (= 100 GB × 1.183)

Offset examples

  • For 100 GB of storage resource usage in the China (Hangzhou) region, the storage plan offset amount is 100 GB.

  • For 100 GB of storage resource usage in the US (Virginia) region, the storage plan offset amount is 105 GB.

  • For 100 GB of storage resource usage in the Malaysia (Kuala Lumpur) region, the storage plan offset amount is 108.3 GB.

  • For 100 GB of storage resource usage in the Singapore region, the storage plan offset amount is 113.3 GB.

  • For 100 GB of storage resource usage in the Japan (Tokyo) region, the storage plan offset amount is 118.3 GB.

Offset rules for storage plans

Instance dimension

ApsaraDB for SelectDB applies your purchased storage plans to offset usage based on instance product type priority, region priority, and the offset factor. The storage plan with the earliest expiration time is used first. If your storage resource usage exceeds the total capacity of your storage plans, the excess usage is billed at the pay-as-you-go rate. For more information about pay-as-you-go storage resource rates, see Billable items and pricing. The following figure shows the priority for offsetting instance resources using a resource plan.

Note

In the figure, the Chinese mainland currently includes China (Hangzhou), China (Shanghai), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Ulanqab), China (Shenzhen), China (Heyuan), China (Guangzhou), and China (Chengdu).

image

Storage plan dimension

If multiple valid storage plans exist, the offset priority is shown in the following figure.

image

Billing examples

  • Storage plan capacity is equal to storage resource usage

    You purchase a 200 GB storage plan with a 1-month subscription. All your ApsaraDB for SelectDB instances are in the China (Hangzhou) region, and the total storage resource usage is stable at 200 GB per hour. The storage plan capacity is fully used for the offset, and there is no excess usage. Therefore, the storage resource fee for the month is CNY 0.12 per GB/month × 200 GB × 1 month + CNY 0.00 = CNY 24.00. Compared to the pay-as-you-go billing method, you save CNY 0.0003 per GB/hour × 200 GB × 24 hours × 30 days - CNY 24.00 = CNY 19.20.

  • Storage plan capacity is greater than storage resource usage

    You purchase a 400 GB storage plan with a 1-month subscription. You have three ApsaraDB for SelectDB instances. One instance is in the China (Hangzhou) region, one is in the Singapore region, and one is in the Japan (Tokyo) region. The storage resource usage for each instance is stable at 100 GB per hour. The storage plan offset amount is 100 GB × 1 + 100 GB × 1.133 + 100 GB × 1.183 = 331.6 GB. The storage resource usage does not exceed the plan's capacity. Therefore, the storage resource fee for the month is CNY 0.12 per GB/month × 400 GB × 1 month + CNY 0.00 = CNY 48.00. Compared to the pay-as-you-go billing method, you save CNY 0.0003 per GB/hour × (100 GB + 100 GB + 100 GB) × 24 hours × 30 days - CNY 48.00 = CNY 16.80.

  • Storage plan capacity is less than storage resource usage

    You purchase a 300 GB storage plan with a 1-month subscription. You have three ApsaraDB for SelectDB instances. One instance is in the China (Hangzhou) region with a stable hourly usage of 150 GB. One instance is in the Singapore region with a stable hourly usage of 100 GB. One instance is in the Japan (Tokyo) region with a stable hourly usage of 100 GB. After the storage plan capacity is fully used for offsets, excess storage resource usage from the Japan (Tokyo) region remains. The excess amount is 100 GB - (300 GB - 150 GB × 1 - 100 GB × 1.133) / 1.183 = 69 GB (rounded). This usage is billed on a pay-as-you-go basis. Therefore, the storage resource fee for the month is CNY 0.12 per GB/month × 300 GB × 1 month + CNY 0.0003 per GB/hour × 69 GB × 24 hours × 30 days = CNY 50.90. Compared to the pay-as-you-go billing method, you save CNY 0.0003 per GB/hour × (150 GB + 100 GB + 100 GB) × 24 hours × 30 days - CNY 50.90 = CNY 24.70.

Purchase a storage plan

Important

  • If your storage resource usage exceeds the capacity of your storage plan, the excess usage is billed at the pay-as-you-go rate. You should estimate or determine your storage resource usage before you purchase a storage plan with a suitable capacity. This helps prevent waste from over-provisioning and ensures complete coverage.

  • When you configure the subscription duration on the ApsaraDB for SelectDB storage plan purchase page, you can choose whether to enable auto-renewal. We recommend that you select Auto-renewal. This prevents the storage plan from expiring, which could lead to incomplete offset coverage and additional costs from pay-as-you-go billing.

  • A storage plan takes effect immediately after a successful purchase. During its validity period, the plan offsets the storage resource usage of your ApsaraDB for SelectDB instances on an hourly basis. The offset is applied based on the instance product type priority, region priority, and offset factor.

  1. Log on to the ApsaraDB for SelectDB purchase page.

  2. Set Product Type to Storage Plan.

  3. Set Plan Type to SelectDB Storage Plan.

  4. Configure Capacity, Quantity, and Subscription Duration.

  5. Select Auto-renewal.

  6. Click Buy Now.

  7. On the Confirm Order page, confirm the Parameter Settings and select the Terms of Service checkbox.

  8. Click Pay and complete the payment as prompted.

View resource plan offset details

View offset details by resource plan

On the Reserved Instance Management page, you can perform the following operations:

  • View the overall information about a resource plan.

    Click the Instance Summary tab. Locate the target resource plan using the Product and Product Name columns.

    You can view information such as the Status, Total Capacity, Period Capacity, Effective Time, and Expiration Time of the resource plan.

    You can also click Statistics in the Operation column to go to the Resource Plan Usage Statistics (Hourly) page. On this page, you can view the offset details for the storage resource usage of each instance.

    Note

    • The statistical data is delayed by one day. You can view consumption data for the resource plan up to the previous day. For real-time consumption data, refer to the usage details.

    • Consumption statistics include only the resource plan offset amount that results from instance usage. It does not include the clearing of remaining capacity due to resource plan refunds or expiration.

    • The instance consumption overview displays only the names of the top 8 instances by offset amount. Instances that are not in the top 8 are categorized as "others".

  • View the offset details for a resource plan.

    Click the Usage Details tab. Locate the target resource plan using the Product and Resource Plan Name columns. You can view information for each offset, such as Offset Time, Remaining Amount Before Offset, Offset Amount, Remaining Amount After Offset, Offset Account, Offset Product, Offset Instance ID, Offset Billable Item, Original Instance Usage, and Offset Factor.

View resource plan offset details by instance

  1. Go to the Bill Details page.

  2. Locate the target instance.

    Configure the following search items and click Search.

    Configuration item

    Description

    Billing Cycle

    The date of the bill.

    Instance Name

    The name of the target instance.

    Product Detail

    Select ApsaraDB for SelectDB (Pay-As-You-Go) or ApsaraDB for SelectDB (Subscription).

    Statistic Item

    Select Billable Item.

    Statistic Period

    Select Details.

  3. In the detailed bill results, find the record where the Billable Item Code is storage_size or elastic_storage_size.

    Here, you can view information such as Offset Resource Plan ID, Resource Plan Offset Amount, Usage Before Offset, and Usage After Offset. If this information is not present, it means that no storage resource plan was used for an offset, and the storage resources were billed at the pay-as-you-go rate.

    If offset information exists, you can click the number in the Resource Plan Offset Amount column to go to the Resource Management page. This page displays the usage details of the resource plan by default. On this page, you can view the storage resource plan offset details for the instance during the Consumption Time period of the current record.

Upgrade a storage plan

  1. Go to the Manage Reserved Instances page.

  2. On the Instance Summary tab, find the target storage plan using the Product and Resource Plan Name columns. Click Upgrade in the Operation column.

  3. On the Upgrade/Downgrade page, configure the Capacity.

    Note

    When you upgrade a storage plan, the new capacity must be greater than the current capacity.

  4. Select the Terms of Service checkbox.

  5. Click Buy Now.

  6. On the Pending Orders page, click Purchase to complete the upgrade.

Renew a storage plan

Renew on the Resource Management page

  1. Go to the Manage Reserved Instances page.

  2. On the Instance Summary tab, find the target storage plan using columns such as Product and Product Name. Click Renew in the Operation column.

  3. On the Renewal page, configure the Subscription Duration.

  4. Select the Terms of Service checkbox.

  5. Click Buy Now.

  6. On the Pending Orders page, click Purchase to complete the renewal.

Renew on the Renewal Management page

  1. Go to the Renewal Management page.

  2. On the Resource Renewal page, set Product Name to ApsaraDB for SelectDB (Storage Plan).

  3. Locate the target storage plan.

    Select the Manual Renewal, Auto Renewal, or Non-renewal tab. In the data list, find the target storage plan and click Renew in the Operation column.

  4. On the Renewal page, configure the Subscription Duration.

  5. Select the Terms of Service checkbox.

  6. Click Buy Now.

  7. On the Pending Orders page, click Purchase to complete the renewal.

Note

  • When you configure the subscription duration on the ApsaraDB for SelectDB storage plan renewal page, you can choose whether to enable auto-renewal. We recommend that you select Auto-renewal. This prevents the storage plan from expiring, which could lead to incomplete offset coverage and additional costs from pay-as-you-go billing.

  • On the Manual Renewal or Non-renewal tab of the Renewal Management page, you can enable auto-renewal for a storage plan. Available auto-renewal periods include 1, 2, 3, and 6 months, and 1, 2, and 3 years.

  • After you enable auto-renewal, the automatic renewal payment is deducted by default 9 days before the expiration date. If the payment fails, the system retries on the following day and continues to do so until the payment is successful, up to one day before the expiration date. You can set the start date for the automatic renewal payment deduction on the Renewal Management page. The earliest start date that you can set is 3 days before expiration.

Unsubscribe from a storage plan

Go to the Unsubscription Management page. You can perform the following operations:

  • Unsubscribe from resources in use.

    Note

    • After you unsubscribe, the resource plan is immediately released and cannot be recovered.

    • After you unsubscribe, the storage resource usage of your ApsaraDB for SelectDB instances is offset by other storage plans or billed on a pay-as-you-go basis. Ensure that your account has a sufficient balance.

    1. Click Unsubscribe from resources in use.

    2. Set Product Dimension to Resource Plan.

    3. Locate the target resource plan.

      Find the target storage plan based on Product Name, the storage plan's Instance ID, Order Time, and the unsubscription type (Unsubscribe for 5 days of no use or Non-full refund).

    4. In the Operation column for the target resource plan, click Unsubscribe Resource.

    5. On the Unsubscribe Resource page, select the checkbox to confirm the unsubscription rules.

    6. Click Unsubscribe Now and complete the unsubscription as prompted.

  • Unsubscribe from a renewal cycle.

    Note

    • For information about how the refund amount is calculated, see Unsubscription rules.

    • If you unsubscribe from a renewal that has not yet taken effect, the validity period of the resource plan is shortened. A full refund for the renewal order is credited to your account. Coupons that were used are not refunded.

    1. Click Unsubscribe from renewal cycle.

    2. Locate the target resource plan.

      Find the target storage plan based on Product Name and the storage plan's Instance Name/ID.

    3. In the Operation column for the target resource plan, click Unsubscribe from Renewal.

    4. On the Unsubscribe from Renewal page, set the Post-change Expiration Time and select the checkbox to confirm the unsubscription rules.

    5. Click Unsubscribe Now and complete the unsubscription as prompted.

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