8.4. Performing an Incremental Backup
Use this procedure to perform an offline backup of any changes since a previous backup.
To perform incremental backups, you must perform a full backup as a reference to create the first incremental backup of a sequence. Keep the most recent full backup and a complete sequence of incremental backups to restore from.
Request other users of Satellite Server or Capsule Server to save any changes and warn them that Satellite services are unavailable for the duration of the backup. Ensure no other tasks are scheduled for the same time as the backup.
Prerequisites
- Ensure that your backup location has sufficient available disk space to store the backup. For more information, see 「Estimating the Size of a Backup」.
Procedure
To perform a full offline backup, enter the following command:
satellite-maintain backup offline /var/backup_directory
# satellite-maintain backup offline /var/backup_directory
Copy to Clipboard Copied! Toggle word wrap Toggle overflow To create a directory within your backup directory to store the first incremental back up, enter the
satellite-maintain backup
command with the--incremental
option:satellite-maintain backup offline --incremental /var/backup_directory/full_backup /var/backup_directory
# satellite-maintain backup offline --incremental /var/backup_directory/full_backup /var/backup_directory
Copy to Clipboard Copied! Toggle word wrap Toggle overflow To create the second incremental backup, enter the
satellite-maintain backup
command with the--incremental
option and include the path to the first incremental backup to indicate the starting point for the next increment. This creates a directory for the second incremental backup in your backup directory:satellite-maintain backup offline --incremental /var/backup_directory/first_incremental_backup /var/backup_directory
# satellite-maintain backup offline --incremental /var/backup_directory/first_incremental_backup /var/backup_directory
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Optional: If you want to point to a different version of the backup, and make a series of increments with that version of the backup as the starting point, you can do this at any time. For example, if you want to make a new incremental backup from the full backup rather than the first or second incremental backup, point to the full backup directory:
satellite-maintain backup offline --incremental /var/backup_directory/full_backup /var/backup_directory
# satellite-maintain backup offline --incremental /var/backup_directory/full_backup /var/backup_directory
Copy to Clipboard Copied! Toggle word wrap Toggle overflow