Difference between WWNs, WWNN and WWPN?

In storage system and for the FC connectivity WWNs, WWNN and WWPN plays an important role. In this article will see about these in more detail.

What is WWNs?

  • It is known as World Wide Name.
  • It is a 64-bit globally unique number, usually present in hexadecimal notation.
  • WWN is assigned at the vendor’s and form many devices this can be change.
  • WWN is a general term. When referring to a WWN, you are either referring to a World Wide Port Name (WWPN) or a World Wide Node Name (WWNN)

What is WWPNs?

  • It is known as World Wide Port Name.
  • It is the globally unique identifier for each individual port on a Fibre Channel network.
  • Fibre Channel management tools are referring to the WWPN when talking about a WWN.

What is WWNNs?

  • It is known as World Wide Node Name.
  • It is the globally unique identifier for each node on a Fibre Channel network.
  • It identify each individual computer on the SAN.
  • As each computer can have multiple Fibre Channel adapters, each WWNN can have multiple WWPNs assigned to it.

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