High-Availability/Disaster Recovery Options

Hello,

 

High-Availability/Disaster Recovery Options

 

Currently my SW environment is running on single datacenter DC1 with (1 primary and 2 additional polling engine with 1 SQL server)

 

We are planning to create one HA in DC2 with 1 polling engine and 1 SQL server replica of primary SQL server and another polling engine in DC3

 

Is this possible to create above environment? Can my additional polling engine (DC2 & DC3) can also working normally to help divide load for other polling engines under DC1?

 

need to get recommendations from those who are familiar with the setup

Parents
  • So HA is normally talking about within each DC, n+1 resiliency for your server that you wish to protect. Disaster Recovery is when you want to provide additional resources to protect in case of DC failover so you'd have the same setup as what you would have in your primary DC. 

    So for example, DC1 has 1 x Primary Poller, 2 x Add Pollers and 1 x SQL Server, HA would provide 1 x Primary Poller, 1 x Primary Poller HA, 2 x Add Pollers, 2 x Add Pollers HA and 1 x SQL Server (could look to have SQL clustering or even have a cold SQL Server to restore to).

    DC2 would have the same to provide DC resiliency. - 1 x Primary Poller, 2 x Add Pollers and 1 x SQL Server, HA would provide 1 x Primary Poller, 1 x Primary Poller HA, 2 x Add Pollers, 2 x Add Pollers HA and 1 x SQL Server 

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  • So HA is normally talking about within each DC, n+1 resiliency for your server that you wish to protect. Disaster Recovery is when you want to provide additional resources to protect in case of DC failover so you'd have the same setup as what you would have in your primary DC. 

    So for example, DC1 has 1 x Primary Poller, 2 x Add Pollers and 1 x SQL Server, HA would provide 1 x Primary Poller, 1 x Primary Poller HA, 2 x Add Pollers, 2 x Add Pollers HA and 1 x SQL Server (could look to have SQL clustering or even have a cold SQL Server to restore to).

    DC2 would have the same to provide DC resiliency. - 1 x Primary Poller, 2 x Add Pollers and 1 x SQL Server, HA would provide 1 x Primary Poller, 1 x Primary Poller HA, 2 x Add Pollers, 2 x Add Pollers HA and 1 x SQL Server 

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