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SG0-001 · Question #451

When a single Fibre Channel port can be configured to represent multiple virtual devices on the same physical port, it is known as which of the following?

The correct answer is A. NPIV. The technology that allows a single physical Fibre Channel N-port to register multiple N-port IDs, effectively representing multiple virtual N-ports to the fabric, is known as NPIV. This is crucial for virtualization environments to provide unique WWNs to virtual machines.

Storage Functionality

Question

When a single Fibre Channel port can be configured to represent multiple virtual devices on the same physical port, it is known as which of the following?

Options

  • ANPIV
  • BN-port ID
  • CMultiplexing
  • DIQN

How the community answered

(29 responses)
  • A
    86% (25)
  • B
    7% (2)
  • C
    3% (1)
  • D
    3% (1)

Why each option

The technology that allows a single physical Fibre Channel N-port to register multiple N-port IDs, effectively representing multiple virtual N-ports to the fabric, is known as NPIV. This is crucial for virtualization environments to provide unique WWNs to virtual machines.

ANPIVCorrect

NPIV (N-Port ID Virtualization) allows a single physical Fibre Channel HBA port to register multiple N-port IDs (WWNs) with the Fibre Channel fabric. This enables individual virtual machines or logical partitions to have their own unique WWNs, appearing as separate devices to the SAN, while sharing the physical HBA port.

BN-port ID

An N-port ID is a unique identifier (WWN) assigned to an N-port on a Fibre Channel device, not a mechanism for virtualization of multiple devices on one physical port.

CMultiplexing

Multiplexing is a general communication concept of combining multiple signals over a shared medium; while Fibre Channel uses multiplexing, it is not the specific term for virtualizing multiple devices on a single port.

DIQN

IQN (iSCSI Qualified Name) is an identifier used in iSCSI storage networks, not Fibre Channel networks.

Concept tested: N-Port ID Virtualization (NPIV)

Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_x/config/n_port_virtualization/NPIV.html

Topics

#NPIV#Fibre Channel virtualization#SAN connectivity

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