configuring lancards for service guard....

[khilari]

# lanscan
Hardware Station Crd Hdw Net-Interface NM MAC HP-DLPI DLPI
Path Address In# State NamePPA ID Type Support Mjr#
1/0/1/1/0/4/0 0x000F202BB200 0 UP lan0 snap0 1 ETHER Yes
119
1/0/12/1/0 0x001321BD6FB6 1 UP lan1 snap1 2 ETHER Yes 119
1/0/14/1/0 0x001321BD7F12 2 UP lan2 snap2 3 ETHER Yes 119
LinkAgg0 0x000000000000 900 DOWN lan900 snap900 5 ETHER Yes 119
LinkAgg1 0x000000000000 901 DOWN lan901 snap901 6 ETHER Yes 119
LinkAgg2 0x000000000000 902 DOWN lan902 snap902 7 ETHER Yes 119
LinkAgg3 0x000000000000 903 DOWN lan903 snap903 8 ETHER Yes 119
LinkAgg4 0x000000000000 904 DOWN lan904 snap904 9 ETHER Yes 119

Now, this is my question lan 0 has the node ip on it. When i make a cluster on this node. The package ip address which is relocatable will use this lan 0 for its communication?
Second if i configure lan 1 with ifconfig do i dedicate that for heart beat?
Lan o is for stanby so i let it stay that way and dont configure it as it is lan1 failover?
Kindly confirm, and also when i do lanscan i get
LinkAgg0 0x000000000000 900 DOWN lan900 snap900 5 ETHER Yes 119
LinkAgg1 0x000000000000 901 DOWN lan901 snap901 6 ETHER Yes 119
LinkAgg2 0x000000000000 902 DOWN lan902 snap902 7 ETHER Yes 119
LinkAgg3 0x000000000000 903 DOWN lan903 snap903 8 ETHER Yes 119
LinkAgg4 0x000000000000 904 DOWN lan904 snap904 9 ETHER Yes 119
what is that showing????. is that of any significanse.
Thanks alot.

[Steven E. Protter]

Shalom,

I think you can go either way. I'd be consistent, and make lan0 on all nodes the primary and lan1 the standby, but thats just so my brain doesn't fry during trouble diagnosis.

Note you do seem to be running APA, Auto Port Aggregation on this system. You need to know what ports on what NIC cards are being aggregated prior to setting up your cluster packages.

SEP

[khilari]

Hi, i didnt quite get the point of aggregating ports, can u please specify. Or any type of document that might help me understand port aggregation.

[Ninad_1 · Accepted solution]

Khilari,

Please find the link for APA Support guide
http://docs.hp.com/en/J4240-90031/ch01.html

Basically APA is used to logically group 2 or more network ports/links to get more bandwidth also helping in load balancing and automatic failure detection of links.

Regards,
Ninad

[khilari]

so in short, i have 3 network ports, and i can group lets say lan0 and lan1 into lan 900 to logically get more bandwidth. And leave lan 2 as standby.(Talking in terms of service guard).
Now, the two ports lan 0 and lan 1 will be responsible for heartbeat communication, ip address of the node itself. Package communication and failovers etc.

If i configure lan900 as 1 logical for lan 0 and lan 1 then do i need other aggregates like lan 901, lan 902 .........

Kindly, confirm on this concept.
Thanks.

[Ninad_1]

Hi,

Its the other way round.
First you need to configure APA and then use the link aggregates in Service Guard.
See chapter 7 in the link I provided which shows you how to use lanadmin to see the configuration and status of the link aggregates.
Once you have configured the network ports into aggregates
Then use these Link aggregates in your cluster nodes - Note you dont use ifconfig but cmmodnet in the cluster control file to configure ip addresses to package and heart beat lans.
Please do read Managing Service Guard
http://docs.hp.com/en/B3936-90079/index.html


Regards,
Ninad