Glossary of Data Backup & Recovery Essentials

A practical guide for Michigan business owners preparing their disaster recovery strategy

Why This Glossary Exists (And How to Use It)

Disaster recovery can feel like a confusing alphabet soup of acronyms, jargon, and vendor buzzwords. This glossary is built for business owners, especially small to midsize companies, who want to make informed decisions about protecting their data, systems, and operations.

Whether you’re building your first business continuity plan (BCP) or upgrading an outdated backup strategy, this guide is your quick-reference tool. Bookmark it, share it, and use it when talking with your IT team or managed service provider.

Backup Types & Strategies

Full Backup

A complete copy of all selected data. It’s the most comprehensive type of backup but also takes the most time and storage space.

Incremental Backup

Backs up only the data that has changed since the last backup of any kind. It’s fast and uses less storage but requires multiple backup sets to fully restore data.

Differential Backup

Bigger than incremental, but faster than full. It saves everything that changed since the last full backup. Simplifies restoration compared to incremental backups.

Synthetic Backup

A backup created by combining previous full and incremental backups into a new full backup, without pulling data again from the source. It reduces system impact and speeds up restoration.

Snapshot

A point-in-time “photo” of data and system states, allowing fast restoration. Snapshots are often used in virtualization environments and typically stored on the same system.

Continuous Data Protection (CDP)

Backs up data automatically whenever changes are made. It enables near-zero data loss but may require more complex infrastructure.

Disaster Recovery & Continuity

Disaster Recovery (DR)

A strategy to restore IT systems and data after a disruption, from cyberattacks to natural disasters. The goal: minimize downtime and data loss.

Disaster Recovery as a Service (DRaaS)

A cloud-based solution where a third party hosts and manages your disaster recovery system. Ideal for small businesses that want enterprise-grade protection without the overhead.

Business Continuity and Disaster Recovery (BCDR)

A combined approach to ensure both your operations and IT systems keep running during or after an event. DR is a subset of BCDR.

Failover

The process of switching automatically to a backup system or site when the primary system fails.

Failback

The process of returning operations to the original system or location once it has been restored.

Hot Site

A fully operational backup location that mirrors your main site (can take over operations almost instantly).

Warm Site

A standby location with hardware and backups but not live (requires setup time to activate).

Cold Site

A basic space with power and networking but no equipment (cheapest option but longest recovery time).

Disaster Recovery Plan (DRP)

A written, tested plan outlining how to recover IT systems after a disruption. It includes backup procedures, roles, timelines, and communication protocols.

Storage

On-Premises Storage

Data is stored locally at your physical business site (e.g., servers in a back room). Provides fast access but vulnerable to local disasters or outages.

Cloud Backup

Data is stored offsite in the cloud, offering flexibility, security, and disaster resistance. Common providers include Microsoft Azure, Amazon S3, and Google Cloud.

Hybrid Backup

Combines local and cloud backup for maximum speed and security. Critical for businesses needing quick restores and offsite protection.

Network Attached Storage (NAS)

A dedicated device connected to your network for storing and sharing files. Great for small businesses needing local backup and fast access.

Storage Area Network (SAN)

A high-performance network that provides access to consolidated, block-level storage. More common in large enterprise environments.

Disaster Recovery Processes

Backup Rotation Scheme

A method for managing backup sets over time. Examples include Grandfather-Father-Son and Tower of Hanoi strategies.

Archiving

Long-term storage of infrequently accessed data. Archiving ensures compliance and reduces clutter on active systems.

Retention Period

The length of time backups are kept before being deleted. Varies by industry regulations and business needs.

Versioning

Maintains multiple historical versions of a file. Helpful for recovering from accidental edits, deletions, or ransomware.

Backup Set

The group of files, folders, and systems selected for backup in a specific run.

Restore Point

A saved state of a system or data set that can be used to revert back after an issue.

Test Restore

A simulated recovery process to ensure backups are working properly and restore accurately. Should be done regularly.

Chain of Custody

Documentation showing who accessed or handled backup data (critical for audits, legal compliance, and investigations).

Orchestration (in DR)

Automated coordination of multiple recovery steps and systems. Ensures all parts of a DR plan are executed in the correct order.

Automated Backup

Scheduled or triggered backups that run without manual intervention. Reduces human error and ensures consistency.

Bonus Tip: Want Help Making This All Actually Happen?

You don’t have to master every term here to keep your business protected. That’s what managed service providers like Common Angle are for. They take care of the technical heavy lifting so you can focus on running your business with confidence.