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RDS for MySQL

Backups of deleted instances

Rebuilding an instance

This topic introduces the operation steps for rebuilding an instance from the backup of deleted instances.

Precautions

The type, database version, backup settings, parameter settings, table name case settings, and time zone settings of the restored instance are the same as those of the original instance.

The data information in the restored instance is consistent with the information at the backup point in time.

The restored instance contains the account information at the point in time the backup was used.

If you want to create a pay-as-you-go instance, make sure your account balance is greater than or equal to 100 CNY.

If you want to create a yearly or monthly subscription instance, make sure your account balance is sufficient to pay the order amount.

Prerequisites

The instance is deleted and the status of the deleted instance backup is Recycled.

Procedure

Log on to the RDS for MySQL console.

In the top menu bar on the upper left, select the region.

In the left navigation bar, choose MySQL > Backups.

Click the Backups of deleted instances page at the top of the page, and in the Backups of deleted instances list, click the Rebuild instance of the target instance Action column.

On the Data recovery page, after setting the following parameters for the new instance, click Confirm order.

Parameter	Description
Instance name	Set the instance name. Naming rules are as follows: The length should be between 1 and 128 characters. It cannot start with a digit or hyphen (-). The name consists of Chinese characters, English letters, digits, underscores (_), and hyphens (-).
Storage type	Select the storage type for the instance. RDS for MySQL offers three storage types: Local SSD, FlexPL cloud disk, and PL0 cloud disk. If the storage type of the original instance is different, the supported storage types when restoring to the new instance are different. The specific rules are as follows: If the original instance storage type is local SSD or FlexPL, changing the storage type is not supported. If the original instance storage type is PL0, you can select either FlexPL or PL0.
Specification type	Supports three specification types: General type (formerly "shared type"), Dedicated type (formerly "general type"), and General type (ARM). General type: Exclusive use of allocated memory and storage resources, shares CPU resources with other shared instances in the same physical machine.CPU utilization is maximized through resource reuse, with high cost performance. CPU utilization is maximized through resource reuse, with high cost performance. Dedicated type: Fully exclusive use of allocated CPU, memory, and storage resources, with stable performance, not affected by other instances in the physical machine. General type (ARM): A general type based on ARM architecture. tip If the storage type of the original instance is Cloud ESSD PL0 or Cloud ESSD FlexPL, only General type is available for the restored new instance. For details about different specifications, refer to Product specifications.
Node specification	Configure the number of nodes and node specifications for the instance. The configuration rules are as follows: If the original instance type is Double node: Up to 10 read-only nodes can be added, and the data on each node is exactly the same as the primary node. You can specify different availability zones in the same region for the primary node and the secondary node. The specification of the secondary node is consistent with that of the primary node. Up to 10 read-only nodes can be added, and the specifications of the read-only nodes can be set on demand. Primary, secondary, and read-only nodes can be deployed in up to three availability zones. If the instance type of the original instance is Multiple node: The specification of the secondary node is consistent with that of the primary node. You can add up to 8 secondary nodes, and at least 1 secondary node needs to be reserved. Nodes can be distributed in at most 3 availability zones. If the original instance's type is Single node, you only need to set the specification and availability zone of the primary node first. tip To enable availability zone-level disaster recovery for double-node and multiple-node instances, it is recommended to deploy the primary and secondary nodes in different availability zones. For double-node instances, if the specification of a read-only node is lower than that of the primary node, high load on the primary node may cause latency or even OOM on the read-only node. It is recommended to select the same or a higher specification for the read-only nodes as that of the primary node. For multi-node instances, it is recommended to reserve an independent secondary node that does not carry business, so that it can be switched to the primary node if necessary. RDS for MySQL assumes no responsibility for any risks or losses incurred due to the failure to configure independent secondary nodes or the inability to complete the primary node switching due to excessive latency of all secondary nodes. When creating an instance, its nodes are preferentially assigned to the default availability zone. You can manually adjust the assignment as needed. The default availability zone is not fixed and is periodically adjusted by RDS for MySQL.
Storage space	Storage space includes data space, system file space, Binlog file space, and transaction file space. Enter a storage space in the range of 20 GB to 32,000 GB, with a step size of 10 GB. Select a value based on your business needs. tip Different storage types and specifications have different storage space value ranges. For detailed information on storage space value ranges, see Product specifications.
Automatic storage expansion	After enabling, the storage space of the instance can be automatically expanded within the set trigger conditions and the upper limit of automatic expansion. The trigger condition is the proportion of available storage space set, and the value range is 10% to 50%. The value range of the automatic expansion upper limit varies depending on the primary node specification. tip Each expansion is Max (5GB, 15% of the current storage space), and rounded up to the nearest multiple of 5GB; if the total space is less than 50GB and the available space usage ratio is less than 10%, then scale-out 10GB. If the expansion fails due to insufficient host storage space or insufficient account balance, the system will suspend the automatic expansion task and report the "InstanceStorageAutoScalingFailed" event to Cloud Monitoring. You can learn more by Viewing an event and setting alarms by Creating event policy to deal with problems in a timely manner. If the automatic expansion fails, the system will suspend subsequent expansion tasks until the cause of the failure is detected and resolved. You can view and manage automated operations rules configured for instances in the Database Workshop. For more information, refer to Automatic operation and maintenance management.
Network protocol type	Set the network protocol type for the new instance. You can select IPv4 or IPv4 + IPv6.
Virtual private cloud	Select the target VPC from the drop-down list. You can also click Create VPC on the right to create a new VPC. For more information on this operation, refer to Creating a VPC. tip A Virtual Private Cloud (VPC), is an isolated network environment with higher security and performance than those of the traditional classic network. You can only choose from the VPC resources under the project that can be accessed by the current account. Creating MySQL instances with shared VPCs is not supported, and shared VPCs are not displayed in the drop-down list.
Subnet	Choose an available subnet in the selected VPC. tip A subnet is an IP address block in the VPC. All cloud resources in the VPC must be deployed in subnets. For more information, refer to Creating a subnet. By default, the subnet uses Automatic IP assignment to assign private network IP addresses. You can click the assignment method drop-down list, select Manual IP assignment, and then specify a correct and unused IP address in the pop-up box. A MySQL instance can only use subnets in the availability zones of its primary or secondary nodes. Subnet and VPC can be classified into different projects. Please confirm that the target subnet and the selected VPC belong to the same project, which can be checked in the Project console.
Associate allowlist	Set the way the instance associates with the allowlist, Immediately or Later is optional.
Allowlists	If the way to select the associating allowlist is Immediate, you need to associate the allowlist for the instance on the Create instance page. Click the allowlist text box to enter the Associate allowlist page. On this page, after checking the allowlist, click OK and return to the Create instance page. The selected allowlist will be displayed in the allowlist text box. tip On the Associate allowlist page, you can also create a new allowlist. For more information about creating an allowlist, see Creating an allowlist. An instance can associate up to 100 allowlists. Click "×" next to an allowlist to remove the allowlist. If the region has a default allowlist and the account has privileges for the project of the default allowlist, the default allowlist is automatically associated with the new instance. If the region does not have a default allowlist or the account does not have privileges for the project of the default allowlist, a new instance cannot use the default allowlist and can only use the allowlists under the project specified in the top navigation bar.
Database port	Specify the private network port for the default endpoint. The value range of the port number is 1000~65534. When you create a new connection endpoint or open a new address, the private network port of the default endpoint will be automatically used to configure as the default port in real time. This default value can be modified by modifying the private network port of the default endpoint, see Modifying address prefix and port.
Time zone	Consistent with original instance
Parameter configuration	You can choose a system parameter template or a custom parameter template. RDS for MySQL provides three system templates: default parameter template, asynchronous parameter template, and high performance parameter template. For more information about system templates, see About system parameter templates. Parameter templates are determined by compatible versions. If you create a MySQL 5.7 instance, the MySQL 5.7 default parameter template is selected by default. You can also select the MySQL 5.7 asynchronous parameter template or MySQL 5.7 high performance parameter template. You can click View parameter template on the right to go to Parameter template page to create a custom template. For more information, refer to Creating a parameter template.
Affiliate project	Choose the project to which the instance belongs (optional). By default, the created instance is attributed to the default. tip A project is a virtual concept that includes a set of resources, users, and roles. A project allows you to view and manage a group of resources in a unified manner and control the permissions of users and roles to these resources. For more details, refer to Resource Management.
Tag	Add tags to the instance (optional). tip You can classify MySQL instances by tags to facilitate instance search and resource aggregation. For more information, see Tag overview. If you need to separate accounts by tags, you need to enable tags in Bill management > Bill tags to apply corresponding tags to bill details. For more information, refer to Tag-based separate billing for instances.
Deletion protection	Deletion protection is a feature of RDS for MySQL that protects instances from accidental deletion. After enabling, the instance can not be deleted directly, it can only be deleted after disabling the deletion protection. tip When creating a new instance, delete protection is enabled by default.
Proxy configuration	Set whether to enable the database proxy service for the instance, and if enabled, set the number of proxy cores. tip The database proxy function for a double-node instance can be configured during and after creation. The proxy function of a multi-node instance cannot be disabled. Single-node instances do not support the database proxy feature. The default is the number of recommended proxy cores. The number of recommended proxy cores is related to the instance type. For a multiple-node instance, the recommended number is the total CPU count of all serviceable nodes multiplied by 0.25 (rounded up). For a double-node instance, the recommended number is the total CPU count of all serviceable nodes multiplied by 0.5 (rounded up). For example, an instance has a primary node and a secondary node, and the number of CPUs for both the primary and secondary nodes is 8. Since (8+8)*0.25=4, the number of recommended proxy cores is 4. The upper limit of the number of proxy cores is 1024, and the lower limit is 2. RDS for MySQL provides 2 cores of free proxy resources for each instance, and the excess is charged according to the number of cores. For detailed billing information about dbatman services, please refer to Billing items and prices.
Billing method	Select the billing method for the instance. Pay-as-you-go: If you plan to use your MySQL instance for a short period of time, choose pay-as-you-go (hourly rate). You can release the instance when it is no longer needed, saving money. Subscription: If you plan to use your MySQL instance for a long period of time, select Subscription (one-time payment) and choose the duration of the purchase in the lower left corner of the page. Subscription is more affordable than pay-as-you-go, and the longer you buy, the more discounts you get. tip You can also create a pay-as-you-go instance first and confirm that the instance meets the requirements before switching to a yearly/monthly subscription. If you choose pay-as-you-go billing, make sure your Volcano Engine account balance is at least 100 CNY. For more information on billing, see Billing overview.
Subscription duration	If you choose subscription, you need to select the purchase duration. Support monthly purchase (can purchase 1~9 months) and yearly purchase (can purchase 1~3 years).
Automatic renewal	If you choose Subscription, you can check the box of Automatic renewal, and the platform will automatically renew the subscription on a monthly basis before the expiration of the instance, so there is no need to renew the subscription manually. You can also modify the renewal configuration at Renewal Management.

Complete the subsequent steps based on the billing type selected.

If Pay-as-you-go is selected: on the Confirm order page, confirm the order details, read and check Database Products and Services Terms and Unsubscription rules, and click Buy now to restore the backup to a new instance.

If Subscription is selected:

On the Confirm order page, confirm the order details, read and check the Database Products and Services Terms and Unsubscription rules, and click Submit the order.

On the Confirm order information page, reconfirm the order information, and click Next step.

On the Submit payment information page, confirm the payment details and select the payment method, click Go to payment, and complete the payment according to the prompts to restore to a new instance.

tip

If you are using a root account, point your mouse to

to the right of the Configuration fee at the bottom of the page to view the fee details for purchasing the instance with the current configuration, including the original price, discount, and discounted price. If you are using a IAM account and do not have the policy that allows the QueryDiscountPrice action, you can only view the original price. For more information about policies, refer to Policy overview.

Related API

API	Description
RebuildDBInstance	Call the RebuildDBInstance API to rebuild a MySQL backup from a deleted instance backup.

Last updated: 2026.04.01 10:47:09