Backup Chain

If you enable backup to a repository for a backup policy, Veeam Backup for Microsoft Azure creates a new backup for the database of each processed Cosmos DB for PostgreSQL account in a standard repository during every backup session. A sequence of backups created during a set of backup sessions makes up a regular backup chain.

Each Cosmos DB for PostgreSQL backup in the backup chain contains metadata that stores information about the protected instance, the backup policy that created the backup, as well as the date, time and configured retention settings. Veeam Backup for Microsoft Azure uses metadata to identify outdated backups, to retrieve information on the source database configuration during recovery operations, and so on.

Note

The forever forward incremental backup method is not implemented for Cosmos DB for PostgreSQL accounts — during every backup session, Veeam Backup for Microsoft Azure creates a full backup in the regular backup chain.

The period of time during which Cosmos DB for PostgreSQL backups are kept in the backup chain is defined by retention policy settings. For details, see Cosmos DB Backup Retention.