Single Nexus 5548UP- FCoE configuration with multiple server ports

[kuber.sharma]

Hello Everyone,

I am new to Networking so please bear with me.

Here is some background information. We have a SINGLE Nexus 5548 UP switch to which we are connecting both the storage and the UCS C240 M3 servers (with CNA). Both the storage and server has 2 ports each going to this nexus switch.

We want to implement FCoE with this solution.

Below are the steps (for server ports) that I have followed to configure the nexus. But the port not logging into the SAN (no flogi) with the config.

***************************
Enable Features
***************************

config t
feature lacp
feature dot1x
feature interface-vlan
feature sshServer
feature npiv
end

******************************************
Confgure Ethernet Ports - Server 
******************************************

configure
interface ethernet 1/17
description To_UCS_rack_server_1_FCoE_port_1
switchport mode trunk
switchport trunk native vlan 6
switchport trunk allowed vlan 1,6
spanning-tree port type edge trunk
priority-flow-control mode on
no shutdown
end

configure
interface ethernet 1/18
description To_UCS_rack_server_1_FCoE_port_2
switchport mode trunk
switchport trunk native vlan 6
switchport trunk allowed vlan 1,6
spanning-tree port type edge trunk
priority-flow-control mode on
no shutdown
end

******************************************
Create VLAN
******************************************
configure
vlan 6
name FCOE_VLAN
fcoe vsan 6
end

******************************************
Setup FCoE QOS
******************************************

configure terminal
system qos
service-policy type qos input fcoe-default-in-policy 
service-policy type queuing input fcoe-default-in-policy 
service-policy type queuing output fcoe-default-out-policy 
service-policy type network-qos fcoe-default-nq-policy 
end

******************************************
Create vfc for Initiators (UCS Servers)
******************************************

configure
interface vfc 17
bind interface ethernet 1/17
switchport description virtual_fiber_channel_Server1_Port1
end

configure
interface vfc 18
bind interface ethernet 1/18
switchport description virtual_fiber_channel_Server1_Port2
end

******************************************
Adding vFC’s to VSAN
******************************************

configure
vsan database

vsan 6 interface vfc 17
vsan 6 interface vfc 18

******************************************
Create Zonesets and Zones
******************************************

configure

show flogi database vsan 6      ----> Do not see any pwwn here???
show fcns database vsan 6

Any help in the regard would be highly appreciated.

Cheers,
KS

[Walter Dey]

did you enable feature fcoe

http://www.4salesbyself.com/cisco-nexus-5500-configuring-fcoe.aspx

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli_rel_4_0_1a/CLIConfigurationGuide/fcoe.html

http://www.emc.com/collateral/hardware/technical-documentation/h10524-fcoe-case-studies-tb.pdf

[kuber.sharma]

Thanks for your reply.

Yes, I did enable the FCoE feature.

Question: If I have 3 servers, do I create a separate zone for each one of them? Or can I have one zone with the pWWN of all the servers?

Thanks in advance.

Cheers,

KS

[kuber.sharma]

Fixed the issue. "switchport trunk native vlan 6" was causing the issue. Maybe the storage and Servers were not configured with proper VLAN's. I removed the native vlan and everything logged in fine.

Any how I have configured a single zone with all 3 servers pWWN's. I know single initiator zoning is the way to go.

Can you please guide me if I can move these servers in their separate zones without any outages?  If it helps, all severs have 2 pWWN's. The current zoneset is active with that single zone.

Please let me know if you need any additional details.

Cheers,

KS

[Walter Dey]

Hi KS

Excellent !

Regarding zoning, most (all) storage vendors prefer (recommend) single initiator - single target zoning. This requires more work, but might be better from the operational view.

I didn't do it, but you should be able to add this single initiator - single target zones to your existing zoneset, activating it, and see if it is ok (every pwwn has a * in front, which means a flogi has been done, and therefore there is no typo). Then in second step you remove the initial zone, and do again a zoneset activation.

Good luck !

Walter.