Question : Setup multiple ethernet interfaces on Redhat to support Oracle RAC

Hello,
I am trying to setup a redhat system to support Oracle RAC which requires multiple Ethernet interfaces configured for redundancy for it to work.  How do I do this?  Also what is it that I have to do to the Dell chassis backplane switches to configure them to work in this scenario and recognize the interfaces?

H/W & S/W configuration:

• Dell 1955 10 blade chassis with Redhat 5.5 and Oracle 11g RAC. installed on 3 blades.

• The chassis is up and running with it's own IP address and pingable.
  

The DRAC/MC is reachable.

• Redhat 5.5 installed on the blades.  

I only need your help for one blade setup then I will duplicate it to the other blades.

I think I need to setup 'aliases' also but not exactly sure if and/or how this is done.  Has anyone setup multiple i/f's for RAC before?

Not sure if I am phrasing this question correctly but hoping I am somewhat clear in my request.

Cheers,
Damon

Answer : Setup multiple ethernet interfaces on Redhat to support Oracle RAC

I'm fairly sure what you want to do is called NIC/Interface bonding, a.k.a. NIC teaming.

This will allow two (or more) NIC's to appear as a single NIC.  This does assume that your blade chassis does have either two switches or two pass through NIC modules so that the two NIC's on the blade server both have physical paths into the network.

https://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/ref-guide/s1-networkscripts-interfaces.html#S2-NETWORKSCRIPTS-INTERFACES-CHAN