Physical RDM Snapshots?

[ekisner]

As a potential feature request, I figured I would first ensure I understand what I'm saying.

We cannot snapshot a VM with a pRDM attached.  This makes sense to me because it's basically out of VMware's hands what happens to the LUN.

Veeam has leveraged storage APIs to allow storage-level snapshots to be taken by supported arrays, directly on the arrays:

Backup from Storage Snapshots —Veeam Availability Suite

My question, if VMware were to invest the development time implementing vendor-specific APIs to leverage storage snapshots (snapshot the actual LUN), would this be a passable way to overcome the obstacles associated with snapshotting a physical RDM (and associated VM)?

Or would the cogs not all necessarily turn at the same speed causing the whole clock house to come crashing down?

[IT_pilot]

Virtual Machine Snapshots are not available when the RDM is used in physical compatibility mode.

Difference between Physical compatibility RDMs and Virtual compatibility RDMs (2009226) - https://kb.vmware.com/s/article/2009226

[dskwared]

Could you convert the physical RDM disk to a virtual RDM disk? That would at least give you the ability to snapshot the RDM disk once it's converted.