Hi Benjamin,
if you want to do backup/recovery as a 3rd party tool, the best would be to use the SAP Backint for SAP HANA interface, which has been created exactly for that. (details on this can be found here Blog: "Backint for SAP HANA" Certification Avai... | SAP HANA).
Other than that, you'd have to interact with the hana daemon to create an appropriate SQL recover script, placed at the right location to have it executed upon restart.
To my knowledge, this is not supported for usage outside of SAP development.
- Lars