This topic describes the release notes for Database Backup (DBS) and provides links to the relevant references.

2021

Release date Feature Description References
August 2021 Optimization The emergency disaster recovery feature is further enhanced to allow you to create a privileged account in a sandbox instance. Create a sandbox instance for the emergency disaster recovery of an ApsaraDB RDS for MySQL database
June 2021 Emergency disaster recovery The emergency disaster recovery feature is enhanced. Create a sandbox instance for the emergency disaster recovery of a self-managed database
Optimization For emergency instances, reading of binary log files is accelerated at the backend, and snapshots can be generated based on binary log files without processing at the backend. N/A
Fixed issues
  • The issue where the error message "dataset not exist" is displayed when you release a DBS sandbox instance is fixed.
  • The issue of failing to restore a data source based on a backup schedule is fixed.
  • The issue of failing to specify the port number of a public endpoint in the console when you restore databases is fixed.
  • The issue of failing to obtain valid instance and remap information when you perform logical backups for PolarDB O Edition databases is fixed.
N/A
May 2021 NAS storage pool Self-managed Object Storage Service (OSS) buckets and NAS file systems are supported in addition to the built-in storage space of DBS. This facilitates backup management. What is a storage pool?
Fixed issues
  • The issue of failing to delete expired backup sets is fixed.
  • The issue of failing to redeploy machines due to the soft deletion of the backup gateway is fixed.
  • The issue of failing to enable incremental backup for MariaDB databases is fixed.
N/A
April 2021 True incremental-forever backup for an Oracle database Full backup and synthetic backup are supported to reduce backup costs and resource overheads. This feature is in public preview. To use this feature, join the DingTalk group whose ID is 35585947. Create a true incremental-forever backup for an Oracle database
Backup gateway V0.0.113
  • The parameter files that are used to create Oracle Windows services and Oracle standalone databases are restored.
  • The backup gateway can be configured at the frontend to disable databases before data is restored and enable databases after data is restored.
N/A
New regions DBS is newly available on Alibaba Gov Cloud and in the China (Heyuan) and China (Ulanqab) regions of the Alibaba Cloud public cloud. N/A
Fixed issues The issue of the repeated creation of incremental tasks for primary and secondary MongoDB instances is fixed. N/A
March 2021 Multi-level storage pool The multi-level storage pool feature is supported to allow data backups to be automatically replicated across storage pools. Backup policies that use multi-level storage pools are configured to manage on-premises and cloud databases and share data backups among storage pools. This enhances security and reduces backup costs. This feature is in public preview. To use this feature, join the DingTalk group whose ID is 35585947. Create a backup policy that uses multiple levels of storage pools
Source deduplication The source deduplication feature is supported to back up only data that has been modified since the last backup and ignore other data that has been backed up. This greatly reduces bandwidth and storage costs. This feature is in public preview. To use this feature, join the DingTalk group whose ID is 35585947. Source deduplication
Optimization
  • The DescribeRegions operation is optimized to improve availability.
  • The restoration feature is optimized so that the sandbox instance can be restored to the point in time of the latest snapshot when the sandbox instance cannot be restored to a specified point in time.
  • The automatic access to data sources is disabled, which does not affect the backup set synchronization feature of the backup schedules that have been synchronized.
N/A
Fixed issues Configuration issues of the Malaysia (Kuala Lumpur) region are fixed. N/A
January 2021 DBS sandbox The public preview of the DBS sandbox feature ends on January 28, 2021. After January 28, 2021, you are charged for the use of the sandbox feature.
  • If the sandbox feature is enabled for backup schedules after 00:00:00 on January 28, 2021 (UTC+8), you are charged based on DBS sandbox fees.
  • If the sandbox feature is enabled for backup schedules before 00:00:00 on January 28, 2021 (UTC+8), DBS extends the validity period of public preview to 00:00:00 on March 1, 2021 (UTC+8).

    If you want to continue using the sandbox feature after the public preview period ends, go to the DBS console to re-enable the sandbox feature.

Overview
Backup for MySQL based on logs MySQL databases can be backed up based on binary logs by using the physical backup method. This helps you achieve a recovery point objective (RPO) within seconds. Log backup for MySQL

2020

Release date Feature Description References
November 2020 Batch operations on data sources Batch import, backup, and including of data sources are supported. Backup tasks can be managed in batches based on backup policies and logical groups.
Recovery drill Recovery drills are supported to verify the integrity of backup data and the reliability of the disaster recovery system. Disaster recovery drills
October 2020 Backup of MariaDB databases MariaDB 10.0 and 10.3 databases can be backed up, including ApsaraDB RDS for MariaDB TX instances and self-managed MariaDB databases. Preparing
September 2020 Backup set query Backup sets can be queried without the need of restoring databases by using built-in Data Lake Analytics (DLA). Backup set query overview
Backup of files The data of the server that hosts your databases can be backed up in a centralized manner. The data includes logs, programs, and attachments. Back up a file
DBS sandbox instance Sandbox instances can be created to make data of physical backups available in a short period of time. Overview