The most common approach to backup a Delphix Engine is via Replication. Delphix Replication gives the ability to backup Delphix Engine objects and data, with easy failover and without any intervention or co-ordination from different teams. More details about replication can be found here, https://docs.delphix.com/docs/data-backup-and-recovery-solutions/delphix-replication.
Another approach is to backup Delphix Engine metadata only, which can be used to rebuild the Delphix Engine state from scratch by restoring the backup. This is a fast and convenient method without any additional infrastructure, as long as it satisfies DR requirements use-cases, Recovery Point Objective (RPO), and Recovery Time Objective (RTO). This metadata approach can also be used for migration use cases with replication, to backup and restore objects which are not handled by Replication.
Metadata backup and restore can be achieved via scripts which are available as an open-source project on GitHub, https://github.com/delphix/dxtoolkit/wiki/Backup-and-Restore-Delphix-Engine-metadata
The only pre-requisite for this approach is dxtoolkit. More details about dxtoolkit can be found here https://github.com/delphix/dxtoolkit, and you can post questions about using dxtoolkit here in the community.
Backup and restore of Delphix Engine metadata can either be done automatically (using scripts) or manually (directly using dxtoolkit commands).
To backup and restore automatically with detailed documentation, refer to this link --> https://github.com/delphix/dxtoolkit/wiki/Backup-and-Restore-of-metadata-automatically.
For manual steps to backup Delphix Engine metadata, follow the instructions available here, https://github.com/delphix/dxtoolkit/wiki/Backup-and-Restore-of-metadata-manually.
Here is a brief video on how to backup and restore Delphix Engine Metadata, https://community.delphix.com/viewdocument/delphix-engine-metadata-backup-and