title: Location selection criteria for a second data center or off-site storage of materials.
abstract: As organizations develop secondary data centers, it is critical that they be placed in locations that serve the organization yet do not have a shared risk with the primary data center. The organization needs to consider factors or guidelines which mitigate potential issues that could affect both the primary and secondary data center. It is impossible to eliminate all risk to a single data center but an organization needs to ensure that at least one data center remains operable. The article will propose that data centers be located 50 km or approximately 30 miles apart. The proposal is supported by evaluating earthquake intensity maps that will show that earthquakes damage drops to relatively safe levels after the 30 miles from the epicenter. The article will show that other environmental factors such as power, floods, fire, transportation, fire, and soil are also mitigated by a 30-mile separation guideline.
authors.affiliation: Homeland Security, Monrovia, California, USA.
authors.forename: Mitchell
authors.initials: M
authors.lastname: Cochran
authors.forename: Paul
authors.initials: P
authors.lastname: Witman
mesh_terms: D004189:Disaster Planning / Q000592:standards*; D004190:Disasters; D055866:Earthquakes; D011211:Electric Power Supplies; D005390:Fires; D005843:Geography; D016247:Information Storage and Retrieval / Q000379:methods* / Q000592:standards; D057192:Tsunamis