How to backup a Physical RDM ?

Hello All,

I would like to know how we could take a backup of a physical RDM ?

Kindly share ideas and features of the product VDP that would allow or provide a workaround for the backup of the RDM in physical mode.

Also anybody with the knowledge of IBM TSM could provide some steps for TSM backup for RDM in physical mode.

I am looking at VDP or TSM for backup.

Thank you in Advance !