Genesys CTI User Forum

Genesys CTI User Forum => Genesys CTI Technical Discussion => Topic started by: DJM on March 11, 2011, 05:05:23 PM

Title: Non-Genesys HA for Genesys apps
Post by: DJM on March 11, 2011, 05:05:23 PM

Hi all

Just wondering if anyone here has ever set up some sort of non-Genesys controlled HA - in particular for those applications which do not support even warm standby.

Other options being something like dynamic DNS, or HA VMWare etc etc.  Obviously having this sort of HA/failover in addition to Genesys failover for a particlar application would be a recipe for disaster, but there doesn't seem many other options for those few apps which don't have hot/warm standby.

Cheers
DJM

Title: Re: Non-Genesys HA for Genesys apps
Post by: Steve on March 11, 2011, 08:12:48 PM

I'm a great fan of hardware clustering, especially for the config layer. The database running in a resource group which can fail over to either of the hosts. DB Server in another resource group, dependent on the DB RG. Meaning it can only start if the DB is up and running. Finally Config Server running in a third group, dependent on the DB Server group. LCA running on both host servers, starting when the servers start.

For this to work properly you have to stop SCI from being able to control DB Server and Config Server, they must be under cluster control. You stop the app, the cluster sees an error and restarts it, you stop it again and the cluster thinks something is wrong so restarts it on the other server.

We also put some of our applications behind Cisco Content Switches, these allow us to load balance multiple GAD webservers, provide N+1 resilience for GVP and provide Primary/Secondary resilience for other applications.