about NIC redundancy

[rayche]

Hi,

How can I check if the two NIC in my server is redundancy to each other ? that mean, when a NIC failed, another will take over its work automatically . Which command I can use to check ?

And how can I configure NIC redundancy ?

Thanks.

[Torsten.]

You will need to buy and install the APA software:

http://h20293.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=J4240AA

[Steven E. Protter · Accepted solution]

Shalom rayche,

Three general options:

1) Write a script that monitors state of NIC. If its offline issue an ifconfig command to make the standby LAN card the primary, same address. There will always be some lag.
2) Purchase ServiceGuard. Set up the second card as a standby lan and the SG daemons will handle failover a bit more smoothly.
3) AS noted above APA. Auto Port Aggregation. Also costs money.

Its time or money, todays choice.

SEP

[deepuanil]

hi
if mcservice guard is configuered on your server you can see the lan card redundancy setup by giving

# cmviewcl -v command

it will show the redundency configuaration for all lans enabled with all nodes involved in the cluster

means which lan is primery and which all are standby with each nodes

nice day
damu