Case Study
US State School District’s Centralized Storage System
Data Loss Situation The centralized storage system for the entire state district’s school system was only four years old and huge—twelve virtual machines stored on fourteen RAID 5 systems running ESX 4 servers clustered in a SAN storage environment that distributed all the school district’s data across 70 hard disk drives. During a power surge, the enterprise system lost six of its enterprise drives in staggered failures. Normally, this failure