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LAN ports of BL860c i2 server in C3000 enclosure

LAN ports of BL860c i2 server in C3000 enclosure

Hello all,

 

We have a C3000 enclosure which hosts 1 BL860c i2 server and 1 BL460c G7.

GbE2c Layer 2/3 Ethernet Blade Switch and HP 1Gb Ethernet Pass-Thru Module for c-Class BladeSystem are also present.

Port mapping of Ethernet Blade Switch is shown in attached pic1 and port mapping of Ethernet Pass-Thru Module is shown in attached pic2.

I have enabled 2 LAN ports in each server but although I can connect to BL460c G7 LAN ports (1 & 9 of Ethernet Pass-Thru Module), I cannot connect to the ones of BL860c i2 (3 & 11). I don't receive any reply on ping.

Port mapping of the servers are also attached.

 

Does anyone have any idea what might be the problem?

 

Thanks in advance for your help.

 

Panagiotis.

21 REPLIES
Psychonaut
Respected Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

Have you tried to see if it's using the mez card? So ports 7 & 15? Or that it's going out the Pass-Thru?
Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

There are 4 LOMs on a BL860c i2.

Usually lan0 to lan3.

First try

# nwmgr -g -v -c lan0

for all LOMs.

Hope this helps!
Regards
Torsten.

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Re: LAN ports of BL860c i2 server in C3000 enclosure

Hello,

 

I have checked ports 7 & 15 and they are not working. they are not even blinking when connected.

 

I also ran the nwmgr command and it dispays all ports (lan0-lan3) as active.

 

Any other suggestion?

Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

Does nwmgr show a link? What is the slot of the BL860 blade?

If you use the 1Gb Pass-Thru, you need to connect a 1Gb switch, any lower or higher speed will not work.

Hope this helps!
Regards
Torsten.

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Re: LAN ports of BL860c i2 server in C3000 enclosure

nwmgr does not show any link.

 

Can you please explain what do you mean regarding the ports speed?

The server's lan ports are listed are as 10Gbps Full Duplex.

Can this be a problem?

Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

According to the documentation of the C3000 chassis all 4 LOMs of the full height blade go to interconnect bay 1.

Ports are
N
N+4
N+8
N+12

where N is the slot of the server.

What is in interconnect bay 1?


Could you please post a

# ioscan -fn

of the server?

Hope this helps!
Regards
Torsten.

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Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

Regarding the port speeds:

Even if the LOMs (LAN on Motherboard) are 10Gb, if you use the 1Gb pass-thru you must connect a 1Gb external port to the pass-thru module, any lower or higher speed does not work.

Hope this helps!
Regards
Torsten.

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Re: LAN ports of BL860c i2 server in C3000 enclosure

A GbE2c Layer 2/3 Ethernet Blade Switch is in interconnect bay 1.

Attached is a picture showing the output of ioscan command.

Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

Could you please copy and paste the

# ioscan -fn

output as text?

Hope this helps!
Regards
Torsten.

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Re: LAN ports of BL860c i2 server in C3000 enclosure

Even if I copy it to a txt, I don't have a way to get the file from the server...

Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

This is bad.

 

How about a remote connection from your PC to the blade or the OA?

 

Can you do this?

 

 

However, you have 4 LOMs on the systemboard and an additional mezzanine card in slot 2.

 

this gives 8 LAN ports.

 

The 4 LOMs connect to interconnect bay 1, the other 4 ports go to interconnect bay 3 and 4. Ports are N and N+8.

 

 

What is in interconnect bay 3 and 4?

 

What LAN ports are configured from server side?


Hope this helps!
Regards
Torsten.

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Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

... and back to your initial question. You say you have 2 LAN ports, but in fact you have 8! For a ping response, you need to have the correct ports configured.

You should now just confirm which of the 8 ports are configured with an IP address (of course each from a different subnet).

Please post this information.

# lanscan
# nwmgr
# nwmgr -S apa

Look into

/etc/rc.config.d/netconf

for the configured ports.

Hope this helps!
Regards
Torsten.

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Re: LAN ports of BL860c i2 server in C3000 enclosure

HP 1Gb Ethernet Pass-Thru Module for c-Class BladeSystem is present in interconnect bay 3.

Nothing is present in interconnect bay 4.

lan0 and lan1 are configured on server side

 

I configured lan4 on server side and once I was connected to port 3 of HP 1Gb Ethernet Pass-Thru Module for c-Class BladeSystem, I was able to ping the IP.

 

So as far as I understand I need to "connect" lan0 with lan4 and lan1 with lan5. is there a way to do this?

 

I have also attached the information that you asked for.

Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

I'm still not sure about the slot number of the server, what is it?

Make sure the ethernet switch is configured for the ports. Based on the formula I gave you, you can find out on which ports of the pass-true module the server is connected, so connect your cables there.

So in summary you have 4 ports on the switch in ic bay 1, 2 ports on pass-thru in ic bay 3, you have 6 useable ports (lan0,1,2,3,4,6).

Hope this helps!
Regards
Torsten.

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Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

To find out the slot of the blade from running OS do

# /opt/propplus/bin/cprop -summary -c "Blade"

Hope this helps!
Regards
Torsten.

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Re: LAN ports of BL860c i2 server in C3000 enclosure

After some tests that I did, I managed to identify that ports 3 & 11 of HP 1Gb Ethernet Pass-Thru Module for c-Class BladeSystem correspond to port 4 and 6 of the server.

So I configured the IP of lan0 to lan4 and the IP of lan1 to lan6.

The problem is that once I remove the IP from lan0 and reboot the server, I have a failure during the startup about the 10G ports.

 

Any advice?

Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

What kind of failure?

If the blade server is in slot 3, the ports at the pass-thru module are N and N+8, this is 3 and 11 - no magic behind this.

Hope this helps!
Regards
Torsten.

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Re: LAN ports of BL860c i2 server in C3000 enclosure

The failure is during the start-up.

Configure HP iexgbe 10 Gigabit Ethernet Interfaces FAILED

 

Torsten.
Acclaimed Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

What is your release version? older versions don't have the driver. swlist will tell.

Hope this helps!
Regards
Torsten.

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Re: LAN ports of BL860c i2 server in C3000 enclosure

OS is HP-UX 11iv3

gregersenj
Honored Contributor

Re: LAN ports of BL860c i2 server in C3000 enclosure

Beware of the difference in port mapping on the full hight blads vs the half hight blades.

 

First. The answer on the confusion in this thread. See link, page 21 fig 11:

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01508406/c01508406.pdf

 

To understand the difference, its easier to take a look in the C7000 enclosure.

If you got half hight blades, port 1 on each LOM is routet to interconnect 1, and the port number used on the interconnect is equal to the server Bay number.

Server Bay 1, LOM 1 > IC 1, Port 1. etc.

Server Bay 1, LOM 2 > IC 2, Port 1. etc.

 

Using full hight servers, you can have only the half number of servers. So not to waste IC ports, the full hight servers got 4 LOM's

2 LOM 1 and 3 is routet IC 1, and LOM 2 and 4 to IC 2.

Logically, one is th believe, that LOM 1 is routet to IC 1, port 1.

No. LOM 1 and 2 is routet to the lower connecters, and 3 and 4 to the upper connectors.

So for a C7000, the mapping is:

Server Bay 1 LOM 1 > IC 1, Port 9 (N+8)

Server Bay 1 LOM 2 > IC 2, Port 9 (N+8)

Server Bay 1 LOM 3 > IC 1, Port 1 (N)

Server Bay 1 LOM 4 > IC 2, Port 1 (N)

 

For a C3000 the mapping is:

Server Bay 1 LOM 1 > IC 1, Port 5 (N+4)

Server Bay 1 LOM 2 > IC 1, Port 13 (N+12)

Server Bay 1 LOM 3 > IC 1, Port 1 (N)

Server Bay 1 LOM 4 > IC 1, Port 9 (N+8)

 

BR

/jag