Technical Logic Behind HA

Hi Guys,

I’ve a question on HA behind technical logic.

I know that Node1 and Node2 has synchronization between them and if Node1(Primary) goes down then Node2(Backup) will take over the primary mode. But the question is that application always send request to Node1, so if Node1 is down then how the Node2 receive request ? ???

For Example:

URS send request to Stat1, if Stat1 goes down then how URS know that it should send Stat2 because URS have Stat1 connection in its connections.

Also appreciate if someone can suggest me a documentation which covers the HA working architecture.

Backup application is specified then used when Solution Control puts it into primary mode if in warm standby.

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HA is covered on each deployment guide for each product. Each has its working modes and some have limits like not all being Hot Standby for example, others just don’t have HA.