Business Continuity vs Disaster Recovery: How the Two Plans Differ

Business continuity keeps the business operating during a disruption: who decides, where people work, how customers are served and which tasks run by hand while systems are down. Disaster recovery restores the technology itself, meaning servers, data, applications and connections, in an agreed order and within agreed times. In business continuity vs disaster recovery, the second is one part of the first, so you need both, written to point at each other.

Our glossary entry on business continuity and disaster recovery (BCDR) gives the short definition. This guide compares the two plans in detail: scope, owners, measures, tests and cost. A cyberattack brings in a third plan, covered in our guide to incident response vs disaster recovery.

What is the difference between business continuity and disaster recovery?

NIST's contingency planning guide, SP 800-34 Rev. 1, separates them by subject. Continuity planning applies to the business itself: keeping critical functions and processes going during and after an emergency, such as payroll or customer service. Contingency planning, which includes disaster recovery, applies to information systems: the steps to recover all or part of a system at its existing location or a new one. NIST also notes that a disaster recovery plan can support a business continuity plan by recovering the systems its processes depend on.

How do the two plans work together in an outage?

Take an illustrative case, not a client: a 30-person distributor loses its order system and file server to ransomware at 9 a.m. on a Monday.

• The continuity plan moves first. The owner declares the incident, staff switch to printed order forms and a phone list kept off company systems, the main number is forwarded to mobile phones, customers hear from one person using a prepared message, and finance holds any payment it cannot verify by phone.
• The disaster recovery plan runs alongside. The order system comes back first from a clean, immutable backup, then the file server, then everything else, with the IT lead reporting progress against each system's RTO.
• The handoff back happens when restored systems are checked and the paper orders are entered, a job the continuity plan should assign to a named person.

The numbers in the two plans have to agree. NIST defines maximum tolerable downtime (MTD) as the total outage a business process can accept, and says the RTO of the systems behind it must normally be shorter, because re-entering work done by hand also takes time. If the continuity plan says orders can run on paper for one day and the order system's RTO is three days, one of the plans is wrong.

What does a business continuity plan cover that a DR plan does not?

Everything that is not a system. A continuity plan starts from a business impact analysis, which Ready.gov describes as predicting the consequences of a disruption: lost or delayed sales, overtime and expediting costs, regulatory fines, contractual penalties and customers who leave. From that analysis come:

• Who can declare a disruption, and who approves emergency spending
• Where people work if the office is closed, and on which devices
• A manual workaround for each critical process, with forms printed in advance
• How staff, customers, suppliers, insurers and regulators hear from you, and who speaks
• Which suppliers are critical, and what happens if one fails

What does a disaster recovery plan cover that a continuity plan does not?

The technical detail. Ready.gov says an IT disaster recovery plan should be developed in conjunction with the business continuity plan, with recovery strategies to restore hardware, applications and data. For a small business that means:

• An inventory of systems, each with an owner, its dependencies and a recovery tier
• An RTO and RPO for each system, agreed with the business
• Where every backup copy lives, and which copy is offline or immutable
• Step-by-step restore and failover procedures, in tier order
• A test schedule, with measured results kept on file

Is business continuity management the same as BCDR?

Not quite. Business continuity management is the ongoing program: the impact analysis, the plans, the exercises and the reviews, owned by leadership and repeated as the business changes. BCDR is shorthand for planning continuity and recovery together. Microsoft's reliability guidance makes the program point well: business continuity planning is a process, not a one-time event, and a sound plan covers people and manual or automated processes as well as technology. For a small business the program can be light: a review each year, one exercise, and an update whenever a system, an office or a key person changes.

Which fits a small team?

Both, at a size you will actually maintain. A small business does not need a binder; it needs:

1. A one-page impact analysis: the five to ten processes that matter, how long each can stop, and what a day of stoppage costs.
2. A short continuity plan: decision makers, a phone tree kept off company systems, manual workarounds and prepared messages.
3. A disaster recovery plan with recovery tiers, an RTO and RPO for each system, and restore procedures.
4. One tabletop exercise a year for the continuity side, and scheduled restore tests for the recovery side.

If you can only do one first, start with tested backups and a recovery plan for the systems that hold your data. A business can improvise around a closed office far more easily than around lost data, and the continuity plan should be written around recovery times you have actually measured.

What affects cost, implementation and support?

• Continuity planning costs mostly time: interviews with process owners, writing and exercises. Scope grows with the number of processes, sites, applications and people involved, and with the state of existing documentation.
• Continuity arrangements range from almost free, such as call forwarding and laptops for home working, to expensive, such as a standby office or duplicate equipment.
• Disaster recovery follows the recovery targets: backup storage and retention, immutable offsite copies, and failover for the systems with short RTOs. For scale, Microsoft lists Azure Site Recovery at $25 per protected instance per month for replication to Azure, with storage and failover compute billed separately, as of October 2026.
• Support is the recurring part: keeping contacts and procedures current, checking backups daily, and repeating tests and exercises after changes.

How does NetSys plan continuity and recovery together?

Our business continuity planning engagement starts with the work you cannot stop. We identify critical workflows with their owners, applications, locations and suppliers; agree interruption tolerances and recovery order with leadership; write activation criteria, fallback procedures and communication responsibilities; and run a scoped tabletop or technical recovery exercise that ends in an action list with owners and dates. The disaster recovery side sets an RTO and RPO for each system, keeps offline and immutable backups, and proves recovery with scheduled restore tests. We do not publish a fixed fee for planning; the proposal separates planning from backup changes, recovery infrastructure and remediation. Across more than 30 ransomware incidents in the last three years, every organization we worked with was fully recovered: within 24 hours where a client had a documented disaster recovery plan, and closer to 72 hours where the organization was not yet a client and we were brought in on an emergency basis.

Book a call with an engineer to review the plans you have, or to start one from your list of critical processes.

Frequently asked questions

Is disaster recovery part of business continuity?

Yes. Disaster recovery restores the technology a business depends on, while business continuity covers everything needed to keep operating in the meantime, including people, locations, suppliers and communications. NIST describes a disaster recovery plan as one that can support a business continuity plan by recovering the systems behind its processes.

Do we need a separate business continuity plan and disaster recovery plan?

Two documents, or two parts of one, both work. What matters is that each has an owner, that the recovery times in the disaster recovery plan fit the downtime the continuity plan assumes, and that both can be reached when email and file servers are down, including on paper.

What comes first, the business impact analysis or the DR plan?

The business impact analysis. It shows which processes matter most and how long each can stop, which sets the RTO and RPO the disaster recovery plan has to meet. Without it, the recovery order is decided by whoever happens to be restoring.

How do business continuity, disaster recovery and incident response fit together?

Incident response handles a security event: detecting, containing and removing the threat. Disaster recovery restores systems and data. Business continuity keeps the business running while both happen. In a ransomware attack all three run at once, and NIST notes that a cyber incident response plan may be included as an appendix of the business continuity plan.

How often should each plan be tested?

Review both at least once a year and after major changes. Exercise the continuity plan with a tabletop session, and test disaster recovery more often with real restores, because backups fail quietly. Record the results and fix what each test finds.

Which option fits a small team?

Both, kept short: a one-page impact analysis, a continuity plan with decision makers, workarounds and a phone tree, and a disaster recovery plan with tiers and tested restores. If you must start with one, start with tested backups for the systems that hold your data.

What affects the cost of continuity and recovery planning?

Planning cost follows the number of processes, sites, applications and people involved, and the state of current documentation. Recovery cost follows the targets: shorter RTOs and RPOs mean more frequent copies, failover infrastructure and more testing.