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3.
An initial full backup must be taken with the BACKUP subcommand. This full backup establishes the parent of the first incremental backup.
5.
Incremental backups are taken using the BACKUP subcommand with the --parent option to specify the backup identifier or name of a previous, full backup or an incremental backup. Any previous backup may be chosen as the parent as long as all backups belong to the same timeline.
7.
The restore process for an incremental backup is invoked using the RESTORE subcommand in the same manner as restoring a full backup. The -i option specifies the backup identifier or name of the incremental backup to restore. The restore process begins by going back through the chain of past, parent incremental backups until the initial full backup starting the chain is identified. This full backup provides the initial set of directories and files to be restored to the location specified with the -p option.


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