topic Re: APA software in Operating System - HP-UX

APA software

Jimmy Tom_2 — Fri, 13 Feb 2004 16:32:20 GMT

Is there another HP supported way to provide active/passive and active/active network fail over capabilities without this APA software?

It seems that IBM and SUN have this feature for free, while HP charge money for the APA sw.

thx in advance

Re: APA software

Sridhar Bhaskarla — Fri, 13 Feb 2004 16:39:12 GMT

Hi,

Only otherway I know is with ServiceGuard which does Active/passive failover. And you will have to pay for it too. You can setup a single node cluster which can take care of active - standby lan card failure.

-Sri

Re: APA software

Jimmy Tom_2 — Fri, 13 Feb 2004 17:12:15 GMT

Sridhar, are you saying I have to paid HP for either the apa sw or ServiceGuard sw to get this feature? There is no other way?

thx

Re: APA software

Sridhar Bhaskarla — Fri, 13 Feb 2004 17:14:29 GMT

Hi,

You could probably do an active/passive with your own scripts. But as far as HP goes and my knowledge goes, there isn't any free way of doing either of active/passive and active/active.

-Sri

Re: APA software

Jimmy Tom_2 — Fri, 13 Feb 2004 17:22:08 GMT

So what commands would you use to do the active/pass link?

Re: APA software

Sridhar Bhaskarla — Fri, 13 Feb 2004 17:43:06 GMT

Hi Jimmy,

You will need to have a standby card connected to the same lan (bridged) but in unconfigured state.

You can write a script that runs either through cron or continuously with sleeps in it. You will need to find if the primary interface is down. One way is to check for the hardware state of the lancard. You can use a small script like below

lanadmin << EOF 2>&1 |grep "Operation Status"
lan
ppa 5
display
quit
EOF

If the output is down, then the physical state of the card is possibly down, then you can use 'ifconfig' command to unconfigure the primary interface and configure the IP address on the standby interface.

This is only an idea. You will need to improvise on it.

-Sri