RDM disk support

[jeremymv2]

Raw device mapping disks need to be supported. The challenge with these is they do not support change block tracking or snapshots.

A VMware Raw Device Mapping (RDM) disk is a mapping file that allows a virtual machine (VM) to directly access a storage logical unit number (LUN) on a physical storage subsystem. This bypasses VMware's default storage management interface, VMFS, and allows the VM to access the storage device directly.

[roopakparikh]

What kind of LUNs are these FibreChannel or iSCSI ?

[roopakparikh]

Since its is a LUN mapping, why can't we move the LUN to map to the OpenStack VM directly (assuming there is a way to do taht) instead of converting it ? I assume it would show up as a voume in the OpenStack or can be converted to a Voume. The only question to be aware of are the zoning configuration, in which case we will need to work with the storage admin to make sure the destination host is open to connect to the right WWPN

[jeremymv2]

What kind of LUNs are these FibreChannel or iSCSI ?

The use case we have identified immediately on hand is all FC.