Backups can accumulate on the backup file server and consume a large amount of storage. You can run a script that comes with NSX-T Data Center to automatically delete old backups.
nsx_backup_cleaner.py -d backup_dir [-k 1] [-l 5] [-h] Or nsx_backup_cleaner.py --dir backup_dir [--retention-period 1] [--min-count 5] [--help] Required parameters: -d/--dir: Backup root directory -k/--retention-period: Number of days need to retain a backup file Optional parameters: -l/--min-count: Minimum number of backup files to be kept, default value is 100 -h/--help: Display help message
The age of a backup is calculated as the difference between the backup's timestamp and the time the script is run. If this value is larger than the retention period, the backup is deleted if there are more backups on the disk than the minimum number of backups.
For more information about setting up the script to run periodically on a Linux or Windows server, see the comments at the beginning of the script.