At Dayton Children’s we designed and built an Active/Active dual datacenter client systems infrastructure. Utilizing Citrix Application Delivery Controllers and Global Server Load Balancing, this design is fully redundant at every layer. With this technology, the infrastructure will automatically failover following the loss of individual applications or even the loss of an entire Citrix ADC HA pair. The complete failover of all client systems is achieved with a simple DNS switch to point to the DR Cache database.
To facilitate comfort and readiness to perform a DR cutover, we designed and implemented a custom Python script to guide and assist the ODBA during a DR event. Rigorous testing and customer driven updates enabled us to tailor the process to Dayton Children’s personnel and engender confidence when deciding to activate the DR system.