ServiceGuard and standby LAN interface

[Alexander_7]

Hi Everybody!

I have a problem, may be somebody could help me.

I'm using ServiceGuard 11.12 on HP-UX 11.0.
I can not create a cluster with a standby LAN interface.

ServiceGuard can't create a cluster with a standby interface if this interface is an idle lan card. It says this lan card is a lan card without an IP address and it is not a standby for any other IP addressed lan card.
I also tried to set an ip address to that card and the result is the same.

Thanks in advance.

[Duncan Edmonstone]

Can you post the exact message you get.. and eany entries from syslog.log relating to this.

Thx

Duncan

[Alexander_7]

My cluster configuration file contains:
NETWORK_INTERFACE lan1
HEARTBEAT_IP 10.1.1.27
NETWORK_INTERFACE lan2

where lan2 - is an idle card

>ifconfig lan2
lan2: flags=842
inet 0.0.0.0 netmask ffffffff

cmcheckconf output:
Warning: Network interface lan2 on node balu couldn't talk to itself.
Error: lan2 on node balu cannot be configured in the cluster
because it does not have an IP address, and it is not a standby lan for any other lan.
Failed to evaluate network

[Rainer von Bongartz]

Have you connected your lan2 to your network ??

cmcheckconf needs to have at least a linkloop connection to the lan card

Connect lan2 to your switch or hub and try again

Regards
Rainer

[Alexander_7]

>Have you connected your lan2 to your network ??

>cmcheckconf needs to have at least a linkloop connection to the lan card

>Connect lan2 to your switch or hub and try again

I've tried but it does not help. :-(
linkloop says: link connectivity OK

[Duncan Edmonstone]

check that the two NICs are on the same network - this confirms link level connectivity from lan1 to lan2:

linkloop -i 1 `lanscan | awk ' /lan2/ { print $2 } '`

HTH

Duncan

[Alexander_7]

>linkloop -i 1 `lanscan | awk ' /lan2/ { print $2 } '`

linkloop says:
Link connectivity to LAN station: 0x0...
-- OK

[Duncan Edmonstone · Accepted solution]

Hmmm - if I type just 'ifconfig lanX' on whichever is my standby LAN, I don't get back what you do - I get back 'ifconfig: no such interface'. Try typing

ifconfig lan2 unplumb

and then try the cmcheckconf again

HTH

Duncan

[Roger Baptiste]

Hi Alexander,

I agree with Duncan . The standby lan interface should be unplumbed (i.e disabled).
It is the same on my cluster system.

HTH
raj

[Santosh Nair_1]

The lan card should be unplumbed. Try doing ifconfig lan2 unplumb and then recreating the cluster.

Hope this helps.

-Santosh

[fg_1]

Alexander

1) ifconfig lan2 unplumb
2) rerun the cmcheckconf.ascii file again
3) if this does not work, ensure that you can configure the lan card by normal methods without mcsg. If this works then you may need to apply a patch for the lan card to work with mcsg.

Once you configure the 2nd lan card normally send the output here for verification.

[Alexander_7]

Thank you everybody!
unplumb helped ;-)

Alexander

[Duncan Edmonstone]

If lan2 had some kind of IP stack plumbed into it, then you may find there are some invalid entries in /etc/rc.config.d/netconf for lan2 - make sure the standby NIC isn't mentioned in the netconf file.

HTH

Duncan