Bonded head nodes

Daniel Pfenniger daniel.pfenniger at obs.unige.ch
Wed Nov 6 13:19:49 EST 2002


Hi Rob, 

It is possible, but the head nodes require 3 NICS, 
the third NIC is for the world. 

We have a Beo-cluster fully dual bonded, with two head nodes. 
Here are the relevant files (RH7.3):

/etc/modules.conf
--------------------------
alias eth0 tulip
alias eth1 tulip
alias eth2 tulip
alias bond0 bonding
...
--------------------------

/etc/sysconfig/network-scripts/ifcfg-bond0
--------------------------
DEVICE=bond0
IPADDR=192.168.1.100
NETMASK=255.255.255.0
NETWORK=192.168.1.0
BROADCAST=192.168.1.255
ONBOOT=yes
USERCTL=no
BOOTPROTO=none
--------------------------

/etc/sysconfig/network-scripts/ifcfg-eth0
--------------------------
DEVICE=eth0
BOOTPROTO=static
BROADCAST=xxx.xxx.xxx.xxx
IPADDR=xxx.xxx.xxx.xxx
NETMASK=255.255.255.0
NETWORK=xxx.xxx.xxx.0
ONBOOT=yes
--------------------------

/etc/sysconfig/network-scripts/ifcfg-eth1
--------------------------
DEVICE=eth1
USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
BOOTPROTO=none
--------------------------

/etc/sysconfig/network-scripts/ifcfg-eth2
--------------------------
DEVICE=eth2
USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
BOOTPROTO=none
--------------------------

	Dan

robnash at rogers.com wrote:
> 
> Hello Everyone,
> 
> Fist off I would like to thank everyone for the valuable input regarding the "Two heads are better that one" question.
> 
> I have another question. I have been doing quite a lot of reading on how to bond Ethernet interfaces. In all my reading I have yet to come across literature that describes booting nodes in bonded mode. Is this possible? I have been hacking around with PXE and it seems to me it's not doable due to the fact that the boot process happens in two phases? Does anyone out there know the steps involved in get a fully bonded cluster up and running using the NIC?s prom as the initiator?
> 
> I have the INTEL 10/100/1000MX copper cards.
> 
> Thank you in advance,
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