You can use the Commvault software to back up and restore Amazon RDS for PostgreSQL.
To perform PostgreSQL cloud backups from replica, consider the following recommendation:
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For PostgreSQL master-replica configurations:
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Use the master node for backups to avoid potential conflicts with the recovery process on replicas, which might interfere with tools such as pg_dump. Configuring backups on the master node introduces some overhead, as the Commvault access node connects directly to the master database to perform pg_dump.
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If using a replica for backups, ensure to configure max_standby_archive_delay and max_standby_streaming_delay settings to allow sufficient time for the Commvault triggered pg_dump to complete without being canceled due to WAL replay conflicts. For more information, see PostgreSQL Hot Standby Conflicts.
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Schedule backups during off-peak or quiet hours
- Schedule backups during off-peak or quiet hours to ensure faster execution and minimize the risk of connection interruptions or resource contention.
Backups
Backups You Can Perform
- Full backups
When You Can Perform Backups
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On a schedule: the backup plan that you assign manages scheduled backups
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On demand: You can perform on-demand backups at any time
Data You Can Back Up
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PostgreSQL user databases
Note
The following databases will be skipped from the backups of:
- Amazon RDS PostgresSQL database - rdsadmin, template0, template1
Restores
Backups You Can Use for Restores
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The most recent backup: For example, restore the most recent backup to its original location
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A backup from a specific date: For example, restore data to a point in time before it became unusable
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Backups from a date range: For example, restore data that was accidentally deleted
Destinations You Can Restore To
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In-place: Restore data to the location that it was backed up from
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Out-of-place: Restore data to the following destinations:
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Cross-cloud: You can restore PostgreSQL databases from one cloud platform (such as Amazon Web Services and Google Cloud) to a different cloud platform. The source computer and destination computer should have the same operating system.
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An instance in the same platform or a different platform (such as Alibaba Cloud, Amazon Web Services, Azure, and Google Cloud) across regions
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An on-premises instance
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A disk location
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Note
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You cannot restore data to Amazon RDS Multi-AZ (Availability Zone) reader instances.
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Commvault supports pgvector extension for Amazon RDS for PostgreSQL. The destination instance should also have pgvector extension in case of Out-of-Place restore.