Allegheny County’s Emergency Services 9-1-1 Division handles 4,500 to 5,000 calls for police, fire and EMS dispatch services each day. Preventing unplanned downtime was a non-negotiable criterion in the county’s RFP process, and a primary reason for installing Stratus ftServer systems. At the County’s primary site, two CAD applications run in virtual machines (VMs) on one ftServer system while a second ftServer system supports the Microsoft SQL CAD database. The overflow/disaster recovery site mirrors primary-site operations in near real-time and can take over complete operations in a very short period of time.