An administrator is configuring virtual machines to use Worldwide Port Names (WWPNs) to access the storage.
Which two conditions are required? (Choose two.)
A.
The switches in the fabric must be N-Port ID Virtualization aware.
B.
The virtual machines must be using passthrough Raw Disk Mapping (RDMp).
C.
The virtual machines must be using Virtual Machine Disk (VMDK).
D.
The switches in the fabric must be Storage I/O Control aware.
Explanation:
Explanation/Reference:
A and B are correct.
URL: https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.vm_admin.doc%2FGUID-74DDA7F7-84AC-4251-8749-552A2678A33C.html
Section: Configure Fibre Channel NPIV Settings
Subsection: NPIV support is subject to the following limitations
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To tack on about RDMp:https://blogs.vmware.com/vsphere/2011/11/npiv-n-port-id-virtualization.html
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NPIV support is subject to the following limitations:
NPIV must be enabled on the SAN switch. Contact the switch vendor for information about enabling NPIV on their devices.
NPIV is supported only for virtual machines with RDM disks. Virtual machines with regular virtual disks continue to use the WWNs of the host’s physical HBAs.
The physical HBAs on the ESXi host must have access to a LUN using its WWNs in order for any virtual machines on that host to have access to that LUN using their NPIV WWNs. Ensure that access is provided to both the host and the virtual machines.
The physical HBAs on the ESXi host must support NPIV. If the physical HBAs do not support NPIV, the virtual machines running on that host will fall back to using the WWNs of the host’s physical HBAs for LUN access.
Each virtual machine can have up to 4 virtual ports. NPIV-enabled virtual machines are assigned exactly 4 NPIV-related WWNs, which are used to communicate with physical HBAs through virtual ports. Therefore, virtual machines can utilize up to 4 physical HBAs for NPIV purposes.
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