How to change Low Priority Link NIC in VCS 6.0 Linux

[uvahpux]

Hi All,

Greetings!

I need you guys  help to change my network interface  which was configured for Low priority link. 

We are running a two node cluster vcs 6.0 in Linux platform as per the below configuration.

There are two llt network  and a low priority is configured in this vcs and below are the interface information.

eth0 - Low priority link.

eth1 - llt1

eth2 - llt2

Now there is a requirement to configure a linux bonding for public interface ( eth0 ), after the linux bonding configuration the public interface name will change as bond0. so i need to update the vcs configuration accrodingly.

Please help me in this regard.

[mikebounds · Accepted solution]

You just need to update /etc/llttab and then restart VCS, gab and llt - you can reboot to do this, or to do this online:

On one node:

hastop -all -force

Then on both nodes:

gabconfig -U
lltconfig -U
lltconfig -c
. /etc/gabtab

Then on both nodes

hastart

Mike

[Adhiraj_Joshi]

You can do this on the fly:

First remove the low pri link using:

lltconfig -u <eth0-tagname>

And add the new low-pri link using:

lltconfig -t <bond0-tagname>  -d /dev/<bond0 device> -b ether -l 

The "-l" is for low pri.

Regards,

Adhiraj.

[Adhiraj_Joshi]

Please note that with the above command, changes will not be persistent across reboot/cluster restart. If you want the changes to be persistent, then please update the llttab by replacing the eth0 entry with bond0 link.

[uvahpux]

Thank you all.

[priyanka3rdfeb]

Thanks for your reply,

Following is the content of /etc/llttab on node1

set-node node1
set-cluster 26020
link bond0 bond0 - ether - -

Does it mean that bond0 (bonded interface) will be used for the VCS heartbeat?

[arangari]

Out of the two solutions provided above - one by Mike and other by Adhiraj, I think the one by Adhiraj is better as it doesnt need HA to be stopped.  

[mikebounds]

I would agree with this