This topic describes how to configure a backup schedule in Database Backup (DBS). When you configure a backup schedule, you can specify key information such as the database or table that you want to back up, backup frequency, storage method, and backup cycle. DBS automatically backs up the databases on a regular basis based on the backup policy that you configure.
Prerequisites
A backup schedule is created. For more information, see Create a backup plan.
An account is created for the database that you want to back up, and the required permissions are granted to the database account. For more information, see Account permissions.
A backup gateway is installed on the server of the database on which you want to perform a physical backup. For more information, see Install a backup gateway.
NoteTo check whether a backup gateway is installed, go to the Backup Gateways page in the DBS console.
Procedure
In this example, a logical backup schedule is configured for an ApsaraDB RDS for MySQL instance. The specific configuration procedure varies based on the database type. For more information about how to configure backup and restoration for different types of databases, see Backup and restoration overview.
Log on to the Database Backup (DBS) console.
In the left-side navigation pane, click Backup Schedules. In the top navigation bar, select a region.
On the Backup Schedules page, find the ID of the backup schedule that you want to configure and click Configure Backup Schedule in the Actions column.
In the Configure Backup Source and Destination step of the Configure Backup Schedule wizard, configure the backup source and destination, and click Next in the lower-right corner of the page.
Table 1. Database parameters
Section
Parameter
Description
N/A
Schedule Name
The name of the backup schedule. DBS automatically generates a backup schedule name. We recommend that you enter a descriptive name that is easy to identify. Backup schedule names do not need to be unique.
Backup Source Information
Backup Mode
The method that is used to back up data. By default, the backup method that you selected when you purchased the backup schedule is used. In this example, Logical Backup is displayed.
Database Location
The location of the database that you want to back up. Valid values:
RDS Instance
User-Created Database with Public IP Address <IP Address:Port Number>
ECS-Hosted Database
Express Connect DB/VPN Gateway/Intelligent Gateway
PolarDB
No public network IP: Port's self-built database (accessed through the database gateway)
NoteIn this example, RDS Instance is selected. If you select other location types, you must configure more parameters. For more information, see the Other parameters section of this topic.
Instance Region
The region in which the ApsaraDB RDS instance that you want to back up resides.
If you set the Database Location parameter to PolarDB or ECS-Hosted Database, select the region in which the instance that you want to back up resides.
RDS Instance ID
The ID of the ApsaraDB RDS instance that you want to back up.
Database Account
The username of the account that is used to connect to the database that you want to back up. The account must have permissions to back up the database. For more information, see Account permissions.
NoteFor ApsaraDB RDS instances, read-only permissions are required for backup, and read and write permissions are required for backup and restoration.
Password
The password of the account that is used to connect to the database that you want to back up.
After you enter the username and password of the database account, click Test Connection next to the password to check whether the information about the database that you want to back up is valid. If the specified parameters are valid, the Test Passed message is displayed. If the Test Failed message is displayed, click Check next to Test Failed. Modify the information about the database that you want to back up based on the check results.
SSL Encryption:
The connection method that is used to transmit the backup data. Valid values:
Non-encrypted
SSL-encrypted: SSL encrypts network connections at the transport layer to improve the security and integrity of data in transit. However, SSL increases the network connection response time.
If you want to select SSL-encrypted, you must enable SSL encryption for the ApsaraDB RDS instance before you configure the backup schedule. For more information, see the Step 1: Enable the SSL encryption feature for an RDS instance section of the "Configure the SSL encryption feature" topic.
NoteThis parameter is displayed only when you configure a backup schedule for a MySQL database.
Compliance warranty regarding cross-border data transfers:
Read and agree to the compliance commitment by selecting the check box.
Backup Destination Information
Backup Storage Type
The type of storage that is used to store the backup data. Valid values:
DBS Storage (recommended): Backup data is stored in DBS without the need to create an Object Storage Service (OSS) bucket. You are charged based on the volume of your data that is stored in DBS. For more information about the billing method, see Storage costs.
OSS For User: You must create a bucket in the OSS console in advance. For more information, see Create buckets.
NoteIn this example, DBS Storage (recommended) is selected. If you select OSS For User, you must configure the OSS Bucket Name parameter. Only the Standard storage class is supported.
If the volume of data to be backed up is large, we recommend that you purchase subscription storage plans to offset fees. For more information, see Use storage plans. Storage plans are more cost-efficient than the pay-as-you-go billing method.
Storage Encryption
The method that is used to encrypt the stored data. Valid values:
Encrypted: recommended. DBS uses AES-256 to encrypt data.
The server-side encryption feature is used in OSS. When you upload an object to OSS, OSS encrypts and stores the object. When you download the encrypted object from OSS, OSS decrypts the object and returns the decrypted object to you. For more information, see Server-side encryption.
Non-encrypted: The backup data is not encrypted.
OSS Bucket Name
The name of the Object Storage Service (OSS) bucket that you want to use to store data.
This parameter is displayed only if you set the Backup Storage Type parameter to OSS For User.
Table 2. Other parameters
Section
Parameter
Description
Backup Source Information
Database Type
The type of the database that you want to back up. Default value: MySQL.
Gateway instance ID
The ID of the database gateway.
Address
The endpoint used to connect to the database that you want to back up.
Port Number
The port used to connect to the database that you want to back up.
ECS Instance ID
The ID of the Elastic Compute Service (ECS) instance on which the database that you want to back up is deployed.
Peer VPC
The virtual private cloud (VPC) in which the database that you want to back up is deployed.
PolarDB Instance ID
The ID of the PolarDB for MySQL cluster that you want to back up.
In the Edit Backup Objects step, find the database or table that you want to back up and add it to the Selected section. Then, click Next.
NoteIf you selected Logical Backup when you purchased a backup schedule, DBS allows you to specify the databases and tables to be backed up during full backups. You can back up a single table, a single database, multiple databases, or an entire database instance for some types of databases during full backups. DBS supports incremental backups only for some types of databases. By default, all the incremental data is backed up during incremental backups.
You can click Select All in the lower-left corner of the Available section to back up the entire database. The database objects that can be backed up and the backup granularity vary based on the database type. For more information, see Database engines and features.
By default, a backup schedule cannot be used to back up a database that is created after the backup schedule is configured. To back up the database, you can add the database to the backup schedule on the Edit Backup Objects page of the backup schedule. For more information, see Modify backup objects.
If you selected Physical Backup when you purchased a backup schedule, you must back up an entire database instance.
In the Configure Backup Time step, configure the parameters that are described in the following table. Then, click Next in the lower-right corner of the page.
Parameter
Description
Full-scale Backup Frequency
The frequency of the backup schedule. Valid values: Periodic Backup and Single Backup.
NoteIn scenarios in which incremental data needs to be restored, we recommend that you select Periodic Backup and perform a full backup at least once a week. Otherwise, a large number of binary logs must be replayed during restoration. This process is prone to errors and may result in a prolonged recovery time objective (RTO).
Full Data Backup Recurrence
The days of the week on which DBS runs the backup schedule. This parameter is required if the Full-scale Backup Frequency parameter is set to Periodic Backup. Select at least one day of the week.
Started At
The point in time at which DBS starts a full backup. This parameter is required if the Full-scale Backup Frequency parameter is set to Periodic Backup. We recommend that you specify a point in time during off-peak hours. Example: 01:00.
NoteIf a previous full data backup is not complete at the start time of the next backup, DBS skips the next backup.
Incremental Backup
Specifies whether to enable incremental backup. If you enable incremental backup, make sure that the binary logging feature is enabled for the database that you want to back up.
NoteThis parameter is displayed only if you set the Full-scale Backup Frequency parameter to Periodic Backup.
By default, the binary logging feature is enabled for an ApsaraDB RDS for MySQL instance. If you use a self-managed database, you must manually enable the binary logging feature.
Maximum Concurrent Threads for Full Data Backup
The maximum number of concurrent threads that are available for a full backup. You can configure this parameter to adjust the backup speed. For example, you can reduce the number of backup threads to minimize impacts on the database.
The maximum number of actual concurrent threads varies based on backup schedule specifications. For more information, see How do I change the maximum backup speed?
Backup network speed limit
The limit on the network bandwidth. Unit: MB/s. You can set the limit based on your business requirements. The default value 0 indicates that the network bandwidth is unlimited.
NoteThis parameter is displayed only when you configure a backup schedule for a MySQL database.
In the Edit Lifecycle step, configure the lifecycle for full backup data in the Configure Full Data Backup Lifecycle section.
NoteIf you set the Incremental Backup parameter to Enable in Step 6, you must configure the lifecycle for incremental backup data.
After the configurations are complete, click Precheck in the lower-right corner of the page.
If the Precheck Passed message appears, click Start Task.
NoteIf the state of the backup schedule changes to Running, the backup schedule takes effect.
If an exception or error occurs when you start the backup schedule, troubleshoot the exception or error at the earliest opportunity. For more information, see How do I fix errors for an abnormal backup schedule in DBS? If your issue persists after you use the solution that is provided in the preceding topic, contact technical support in the DBS DingTalk group (ID: 35585947).
What to do next
After a database is backed up, you can view the backup schedule or restore the database. For more information, see View a backup schedule or Restore a database.
You can call the CreateBackupPlan operation to create a backup schedule. You can also call the CreateAndStartBackupPlan operation to create, configure, and start a backup schedule. For more information, see CreateBackupPlan or CreateAndStartBackupPlan.
For more information about how to modify the backup source, backup objects, or backup policy such as the backup time and backup set retention time of a backup schedule, see Manage a backup plan.
For more information about backup and restoration scenarios, such as backup to the cloud, geo-redundancy, backup security, and quick restoration, see Common scenarios.
For more information about fees that may be subsequently incurred by a backup schedule, see Billing FAQ.
To reduce costs, you can pause a backup schedule that you do not need. For more information, see Pause or start a backup schedule.
FAQ
If your backup schedule is abnormal, at least one task becomes abnormal in the backup schedule. In most cases, the abnormal task may be a full backup task or an incremental backup task. The abnormal task may also be a task of other types. For more information, see How do I fix errors for an abnormal backup schedule in DBS?