Which command should be used to determine which hosts are Fibre Channel targets?
A. MDS-A# show host database
B. MDS-A# show flogi database
C. MDS-A# show fens database
D. MDS-A# show host-id
Which command should be used to determine which hosts are Fibre Channel targets?
Answer is C, because show flogi will give you Interface, VSAN, FCID, Port name and node name, but show fcns (yes, fcns, not fens), will give you FCID, Type, pwwn, vendor and FC4-type:feature – and feature will say scsi-fcp:target or scsi-fcp:init (initiator).
The flogi table is a local table to switch and it allows you to see which devices successfully logged in to the fabric.
FCNS database in the other hand is the collective and distributed table that shows every single device successfully logged in to the SAN fabric.
FCNS database is the place that I will look to see my entire fabric and not just local switch.
this is interesting tho: In a Fibre Channel fabric, each host or disk requires an FCID. Use the show flogi database command to verify if a storage device is displayed in the fabric login (FLOGI) table as in the examples below. If the required device is displayed in the FLOGI table, the fabric login is successful. Examine the FLOGI database on a switch that is directly connected to the host HBA and connected ports. now I’m confused !!
I believe the answer is C: but the question Is incorrect : it should read C. show fcns database
This example shows how to display the contents of the FCNS database:
switch# show fcns database
This example shows how to display the detailed contents of the FCNS database:
switch# show fcns database detail
This example shows how to display the management VSAN (VSAN 2):
switch# show fcns database vsan 2
This example shows how to display the database for all configured VSANs:
switch# show fcns database
Correct answear is #show flogi database