This page lists some notes and limitations of the backup process:

1. The user should define a mounted remote filesystem as the backup destination, see Configurable Parameters and Settings
2. HSM, iSCSI or RAID data is not backed-up
3. API Connect domains (v5/Compatibility mode) are not backed-up, except when in full device backup
4. Only persisted data is backed-up. Unsaved configuration changes will not be backed-up
5. Key materials are only backed up by Secure Backup
6. Administrative operations should not be performed during the backup execution. Doing so may cause failure or inconsistent results
7. Backup of IDG Docker containers is not supported (it may or may not work)
8. Backup of Tenant devices is not supported