topic internal communication in BladeSystem - General

internal communication

eduzav — Fri, 09 Apr 2010 15:15:04 GMT

I don't understand how is the relationship between fisicals nics of the blades with the virtual connect switch.
For example If I have a c7000 enclosure with 2 blades 680 with 4 nics and the enclosure have 2 HP 1/10Gb Virtual Connect Ethernet Module, How is the map between a physical port of the switch with one particular nic of any blade?
I viewed the manual, but I didn't understand it.
Thanks

Re: internal communication

gregersenj — Fri, 09 Apr 2010 17:07:58 GMT

It's not that difficult, you just need to put i right inside you head.

The Virtual connect module is descript as an unmanaged switch.

So lets take a look at a GBE2 or Cisco switch.
A GBE2 is a 24 port switch.
You have got 16 ports, that are hardwired to the server NIC's, through the midplane, these are the internal ports. The last 8 ports are the external ports, that you see on the back, also known as the uplink ports, wich mostly connect to the excisting LAN.

each server got 2 or 4 embedded/on-board NIC's, now called LOM's LAN On Motherboard.
Full Hight Servers got 4, and Half Hight Servers got 2 LOM's.

You can have 16 Half hight Servers, and you have 16 internal ports on the switches. Wich mean each Half hight Server got Connection to 1 port on each switch.
LOM 1 is connected to Interconnectbay 1
LOM 2 is connected to Interconnectbay 2
And Server bay 1 is connect to Port 1 on the switch. Server bay 2 is connected Port 2. And so on.

The full hight servers, has 4 LOM's, since you can have only 8 servers in the enclosure.
Server 1 LOM 1 - ICB 1 Port 1
Server 1 LOM 2 - ICB 2 Port 1
Server 2 LOM 1 - ICB 1 Port 2
Server 2 LOM 2 - ICB 2 Port 2
and so on
Server 1 LOM 3 - ICB 1 Port 9
Server 1 LOM 4 - ICB 2 Port 9
And so on.

Virtual Connect is the same.

I will find a link to you, and post it.

BR
/jag

Re: internal communication

gregersenj — Fri, 09 Apr 2010 17:16:33 GMT

Page 18

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00816246/c00816246.pdf

But read all of it :)

Have a nice weekend
/jag

Re: internal communication

eduzav — Sat, 10 Apr 2010 00:20:54 GMT

Perfect, thanks, I could understand it.
Also I helped me with the following doc http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00705292/c00705292.pdf

I didn't know that the interconect switch had 16 internal ports, that was the problem...
Thanks

Re: internal communication

eduzav — Sat, 10 Apr 2010 00:23:14 GMT

Thanks for help me.
Regards,
Eduardo

Re: internal communication

gregersenj — Tue, 13 Apr 2010 11:44:28 GMT

You're welcome :)