Our customer want to know the following Hot Standby Engine issue. Now, they tried to write the operational documentaion for their environment(NPM v10.0) and they need some informaion for it.
1. Hot standby Engine watch the Orion polling engine? or Orion database? And, how long watch interval?
2. If the Hot Standby Engine was catched failure event of Orion NPM server, when it start monitoring, data collection instead of failure server? immediately happened server failure? or wait for several interval time? or try to access to NPM server many times?
3. If the failure Orion NPM server was recovered, when it start monitoring, data collection instead of Hot Standby Engine? it takes a several times? customer want to know the timing of switch the Hot Standby Engine and failure NPM server.
If anyone have many information about these issues, please advice us.
Regards,
Ryuichi-