Does High Availability cover Stacked Pollers?

BUMP

Hello, well High Availability is the framework with decision logic, implementing the mechanisms for monitoring, services handling, failover and so on. High availability pool is always covering the entire server. The Platform version with HA has quite different model of licensing (and also web based license manager), defining so called License Leases. When you create the pool, all the license leases (platform, module, HA, scalability licenses...) are copied to the standby server, so they're ready at the time the failover occurs. High Availability itself doesn't handle installation of the servers, but the platform ship the lightweight installer, which is able to install the additional pollers, websites and the standby servers. Regarding stacked pollers - here we are talking about multiple scalability engine (APE) licenses assigned to the single server, so the High Availability as is shouldn't have any problem with it, just is worth after upgrade to the latest version to check the scalability (stackable) license assignment as the migration from the previous version is not trivial.

I hope it helps to understand

Hi Jan,

Thanks for the reply. I'll make sure that the stacked APE is licensed correctly on the server before implementing HA.

Note to self and others. Since HA 2018.2, after applying an HA license to an APE server, the APE licenses previously assigned get un-assigned.

The correct way to license APE servers that are stacked when using HA is:

1. Assign HA Licenses

2. Assign APE licenses to the HA Pool