RDM Mapping in Nutanix XCP

What is your use case?

Nutanix doesn't use or allow RDM's in the traditional sense of a physical block devices mounted through the VMW vStorage stack; however, if your use case was perhaps a microsoft failover cluster, you could use Volume Groups and in-guest iSCSI to make that work, and it works well.

Hello Jon,

Thanks for the explanation. Actually, I am not configuring my cluster into any RDM related use case. After walk through the nutanix cluster and it options, I couldnt find any provision with related to RDM on the nutanix storage configuration so , I am curious to know about how to achive RDM related scenarios in the Nutanix platform. Hence, I raised this concern here.

Also , I am not aware much about the volume groups concepts in Nutanix storage stack. Can you please explain how to achive RDM usecases using the volumegroups in Nutanix enviorment

Thanks
Bhoopathy

HI

I have a scenario for you , I am currently running an application on virtual machine with VMware using FC SAN and Physical RDM . Now I am migrating that to Nutanix , what all options are available for me . what all changes I need to have at application layer ? eg . FC to ISCSI RDM ..

Regards

Vishal

Physical RDM isn't supported. You would need to change to an in-guest iSCSI setup to a volume group. Higher up in the chain are links to how to set it up. Make sure you have at least the pro license.

There are a few ways to tackle this.

My preferred way is to turn this into a virtual mode RDM, and then storage vMotion it to Nutanix, which will actually turn it into a VMDK. That way you dont have to deal with anything special, its just a VMDK.