Question

A unique 64 bit address used to identify the hba card of each server is

Answer 1

Since the options are not given, I am giving a general answer.

The correct answer should be - Worldwide Node Name (WWNN).

A worldwide node name (WWNN) is a universally unique 64-bit identifier which is usually assigned to every Fibre Channel node or device.

For servers and hosts, the WWNN will be unique for each HBA (host bus adapter). At times where a server has 2HBAs, they will have two WWNNs. 

Answer 2

WWNN is a unique 64 bit address used to identify the HBA card of each server.

Explanation:

• WWNN is expanded as Worldwide Node Name. It is defined as a global unique identifier of 64 bits.

• This identifier is assigned to each and every nodes of the Fiber channel or device.  

• For the hosts and servers, WWNN is defined as unique identifier for each and every HBA. In case of server, it will be two HBAs and two WWNNs.  

• The WWNN is very common for chassis. Overall, the WWNN is unique for whole array.