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Build a data center disaster recovery plan from business impact outward: identify which services must return first, agree with their owners on acceptable downtime and data loss, choose recovery arrangements that can meet those limits, and document how people will activate, execute, test, and maintain them. Keep facility relocation procedures distinct from the technical runbooks for restoring individual systems.
What a data center disaster recovery plan should cover
A useful plan lets the organization make and carry out recovery decisions during a disruption. It should identify who has authority to declare an outage and activate recovery; which facilities, systems, services, processes, and suppliers are in scope; how teams will assess conditions; what recovery order to follow; and how to confirm services are safe and usable again.
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For foundational guidance, NIST Special Publication 800-34 Revision 1 sets out a seven-step contingency-planning process. It was published in May 2010 and updated on November 11, 2010, so treat it as guidance rather than a substitute for current legal, regulatory, contractual, or organizational requirements.
How to build the plan
1. Set policy, scope, and ownership
Secure an executive sponsor and name a plan coordinator. Assign responsibility for business decisions, facilities, networks, system recovery, communications, and coordination with suppliers. Specify who can declare an outage, authorize recovery spending or relocation, and stand down the response.
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Define the sites, business processes, systems, services, data, and third parties covered. Coordinate the plan with business continuity, system contingency, cyber incident response, and facility emergency procedures. They work together, but they address different responsibilities.
2. Perform a business impact analysis
Start with the work the data center supports, not a list of servers. Map each important business process to the applications, infrastructure, data, staff, external services, and facilities it depends on. Determine what disruption would mean for the business and which services must recover before others.
For each critical service, agree with its business owner on two measurable limits:
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- Recovery time objective (RTO): the maximum disruption period the business accepts before the service is restored.
- Recovery point objective (RPO): the maximum amount of data loss, expressed as a period of time, the business accepts.
Set these objectives service by service, based on impact and dependencies. There is no single recovery time or data-loss target that fits every organization or workload. Record who approved each objective and what assumptions the recovery approach relies on.
3. Identify outage scenarios and preventive controls
Consider the disruptions that could affect your site and services, including loss of facility access, power or cooling failure, network interruption, and equipment damage. Use your own risk assessment to identify other relevant events. Note the controls that reduce the likelihood or impact of each scenario.
NIST’s contingency-planning guidance gives data replication and uninterruptible power supplies (UPS) as examples of controls. A UPS is not a complete recovery strategy: required capacity, runtime, electrical compatibility, and installation depend on the facility and its engineering requirements.
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4. Choose recovery strategies
Compare viable approaches against each service’s recovery objectives, required capacity, dependencies, staffing, geographic risks, security requirements, testing evidence, and lifecycle cost. NIST describes alternate equipment, short-term manual processes, and recovery at an alternate location as possible contingency approaches; the appropriate mix depends on the disruption and business impact.
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|---|---|---|
| Alternate equipment | When replacement or alternate equipment can support recovery. | Is it available, compatible, secure, and capable of meeting service requirements? |
| Manual workaround | Typically for short-term disruption when a business process can continue without its normal systems. | How long can staff use it, what capacity can it handle, and how will resulting records be reconciled? |
| Alternate-location recovery | Typically for longer disruptions or physical impacts that prevent use of the primary facility. | How will teams gain access, make systems and data available, restore connectivity and identity services, and provide staffing and supplier support? |
For an alternate location, document how security controls will operate and how the organization will return to normal operations. Plan how to reconcile data created during recovery. These are implementation decisions for your organization; NIST does not prescribe one universal architecture.
5. Write activation and recovery procedures
Make the plan usable under pressure. Include activation authority and triggers, notification and escalation paths, coordination for personnel safety, initial assessment, and checks for damage and access. State the recovery order, restoration actions, validation criteria, communications responsibilities, and steps for returning to the primary site.
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- 8 NEMA 5-15R OUTLETS: Five battery backup & surge protected outlets, Three surge protected outlets; two outlets are widely spaced to accommodate larger plugs; INPUT: NEMA 5-15P right angle, 45 degree offset plug with five foot power cord
- 2 USB CHARGING PORTS: Share 2.4 amps to charge and power tablets, smartphones, MP3 players, and other mobile devices; LED STATUS LIGHTS: indicates Power-On and Wiring Fault
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Keep instructions for relocating operations separate from system-specific restore and validation runbooks. NIST characterizes a disaster recovery plan (DRP) as site-focused planning for relocation after a major physical disruption. Individual system contingency plans provide procedures to restore, recover, test, and return systems to operation, whether at the primary or an alternate site.
6. Test, train, and maintain the plan
Exercise both decisions and technology. Tabletop scenarios can test activation authority, communication, handoffs, and dependency assumptions. Technical recovery tests should establish whether backups, replication, alternate infrastructure, and applications can actually be recovered and validated against their objectives.
For each exercise, record its objectives, participants, observed results, gaps, owners, and due dates. NIST recommends reviewing plans at least annually and after significant changes; review contact details more frequently when they change often. Update related inventories, procedures, and assumptions when facilities, systems, suppliers, or business priorities change.
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Keep related plans distinct
| Plan | Primary purpose |
|---|---|
| Disaster recovery plan (DRP) | Site-focused procedures for relocating information-systems operations after a major disruption that requires relocation. |
| Information system contingency plan (ISCP) | System-focused assessment and recovery procedures, usable at the current or an alternate site. |
| Business continuity plan (BCP) | Procedures for sustaining business operations while recovery proceeds. |
| Cyber incident response plan | Procedures for identifying, mitigating, and recovering from cyber attacks; coordinate it with the DRP and system plans. |
| Occupant emergency plan | First-response procedures for personnel safety and facility emergencies; coordinate it with recovery planning, but do not use it as a substitute for IT recovery procedures. |
This distinction matters during a facility outage: moving operations, restoring a particular application, and sustaining the business are connected tasks, but one procedure set cannot replace the others.
What to compare before committing to a recovery approach
Evaluate strategies against the business-approved objectives and the dependencies discovered in the impact analysis. Compare:
- How quickly each service can be recovered and how much data can be lost.
- Whether the recovery environment can support the required service capacity.
- Whether connectivity, power, identity, security controls, people, and suppliers are covered.
- Whether the alternate location is sufficiently separated from the primary site’s hazards.
- How much effort and time activation requires, and whether staff will be available.
- What tests demonstrate that the approach works, and its ongoing lifecycle cost.
A strategy that appears to meet an RTO or RPO on paper is not established as workable until its dependencies and recovery procedures have been exercised. NIST supports impact-based selection of contingency approaches; it does not identify a universally best vendor or architecture.
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Test and train as part of the planning lifecycle, and review the written plan at least annually and after significant changes, following NIST SP 800-34 Rev. 1. There is no one exercise schedule established here for every organization. Set the cadence and depth of technical testing according to service criticality, the rate of change, and the consequences of failed recovery. Review frequently changing contact lists more often than the full plan.
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