Our company already has a dedicated server in a data centre which hosts a few ecommerce websites, but having had it crash recently my boss has asked me to look into the feasibility of having a redundant server which sits behind the main one, mirroring it. Should the main server crash or require downtime etc the system falls back to the redundant server so there's no website downtime.
Is this actually possible and if so, where should I start looking to learn more?
Is this actually possible and if so, where should I start looking to learn more?