topic serviceguard and informix in Operating System - HP-UX

serviceguard and informix

TMcB — Mon, 21 May 2007 05:30:17 GMT

hello everyone

still trying to plan ahead for moving our informix database to a serviceguard cluster.

The idea I had in my head was that not only would the raw data be on the shared volume, but so would the /informix software directory.
In the event of a cluster failover to the 2nd server, it would just be a matter of mounting the shared volume and bringing up informix.

After reading the document http://h71019.www7.hp.com/ActiveAnswers/downloads/Serviceguard_IBM-IDC_HP9000_Integrity.pdf
it says I would install informix separately on each node.

This would then mean that once our cluster is up and running, we will always have to make updates / changes to both nodes.

Is it not just a simple matter of sharing the / informix folder?

Any advice is greatly appreciated

Thanks

Re: serviceguard and informix

Luk Vandenbussche — Mon, 21 May 2007 05:49:38 GMT

Hi,

You can perfectly install the informix software on a shared volume.

An other option is to install the the configuration files on a shared directory and work wtih logical links.

Re: serviceguard and informix

TMcB — Mon, 21 May 2007 05:51:59 GMT

thanks Luk

The PDF file made no mention of doing this - so I just wanted to make sure before I try it

Thanks again

Re: serviceguard and informix

TMcB — Mon, 21 May 2007 05:52:52 GMT

sorry - one more question

it also refers to "MC/SG informix database toolkits".
Where can I get these?

Re: serviceguard and informix

Luk Vandenbussche — Mon, 21 May 2007 05:56:00 GMT

It is a seperate software packet

http://h20293.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=T1909BA

Re: serviceguard and informix

TMcB — Mon, 21 May 2007 06:03:18 GMT

thanks -
is this something we will need to purchase - or will the informix cluster run without it

Re: serviceguard and informix

Luk Vandenbussche — Mon, 21 May 2007 06:57:38 GMT

You need to purchase it but you can also write your own script.

The package contains
* start script
* stop script
* monitor script

Re: serviceguard and informix

Rasheed Tamton — Tue, 22 May 2007 04:50:03 GMT

Hello,

When you install your software on the shared vol in a package, you will have to always update any kernel changes and patch updates on the passive host also. People normally tend to forget that when they share the binaries on the shared vol.

Regards.

Re: serviceguard and informix

Salah BOUFARGUINE — Tue, 22 May 2007 08:08:49 GMT

Hi
if you install informix on the shared volume, you can't switch to the standby node if you have problem in informix runtime, so it is recomended to install informix informix on each node