200-150 · Question #39
Which command should be used to determine which hosts are Fibre Channel targets?
The correct answer is C. MDS-A# show fcns database. The Fibre Channel Name Server (FCNS) database registers all fabric-attached devices with their port types, making it the correct tool to identify which devices are storage targets.
Question
Which command should be used to determine which hosts are Fibre Channel targets?
Options
- AMDS-A# show host database
- BMDS-A# show flogi database
- CMDS-A# show fcns database
- DMDS-A# show host-id
How the community answered
(30 responses)- A3% (1)
- C90% (27)
- D7% (2)
Why each option
The Fibre Channel Name Server (FCNS) database registers all fabric-attached devices with their port types, making it the correct tool to identify which devices are storage targets.
'show host database' is not a valid Cisco MDS NX-OS command and does not exist in the CLI.
'show flogi database' displays fabric login records including WWNs and VSAN membership, but does not classify devices as targets or initiators.
The 'show fcns database' command queries the Fibre Channel Name Server, which maintains a registry of every device in the fabric along with its port type (initiator or target) and service parameters. This is the authoritative per-VSAN view of all registered devices, allowing an administrator to distinguish storage targets from host initiators. No other single command provides this classified device-type information.
'show host-id' is not a valid Cisco MDS NX-OS command and does not exist in the CLI.
Concept tested: Cisco MDS FCNS database device role identification
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/nx-os/command/reference/mds_nxos_cr/fc_commands.html
Topics
Community Discussion
No community discussion yet for this question.