Cloud Backup
What Is Cloud Backup?
Cloud backup is the process of copying and storing business data, applications, and system configurations to a remote cloud-based storage infrastructure managed by a third-party provider. It replaces or supplements traditional tape and on-site disk backup with scalable, off-site storage that is accessible for recovery from any location with an internet connection.
Cloud backup protects organizations against data loss from hardware failure, accidental deletion, ransomware encryption, natural disasters, and site-level outages. Because the backup destination is geographically separate from the production environment, cloud backup survives scenarios that defeat on-site-only backup strategies.
Cloud Backup vs. Cloud Storage
Cloud backup and cloud storage are related but distinct concepts. Cloud storage (Google Drive, SharePoint, Dropbox) makes files accessible from multiple devices and provides basic version history, but it is not a backup solution. Files deleted or corrupted in cloud storage are typically deleted or corrupted in the synced cloud copy as well.
Cloud backup is purpose-built for data protection: it maintains point-in-time snapshots, enforces retention policies, provides granular recovery options, and is specifically designed to restore data to a known good state following a loss event.
Key Capabilities to Evaluate in Cloud Backup Solutions
- Recovery time objective (RTO) support: how quickly can data and systems be restored?
- Recovery Point Objective (RPO) support: how frequently are backups taken to minimize the data loss window?
- Retention policy flexibility: how long are backup versions retained, and can retention be configured by data type?
- Encryption in transit and at rest: is backup data protected from interception and unauthorized access?
- Immutability options: can backups be protected from deletion or modification, including ransomware?
- Granular recovery: can individual files, emails, or database records be recovered without restoring an entire system?
The Importance of Tested Recovery
A cloud backup that has never been tested is an assumption, not a capability. Organizations should schedule regular restore tests to verify that backed-up data is recoverable, that recovery procedures work as documented, and that recovery time meets business continuity requirements. Discovery of a backup failure during an actual recovery scenario is one of the most operationally damaging situations an IT team can face.
Key Takeaways
- Cloud backup copies and stores data to remote cloud infrastructure, protecting against local hardware failure, ransomware, and site-level disasters.
- It differs from cloud storage: cloud backup is purpose-built for recovery, not file access and sync.
- Key evaluation criteria include RTO/RPO support, retention flexibility, encryption, immutability, and granular recovery options.
- Tested recovery procedures are as important as the backup infrastructure itself.
- Immutable cloud backups that ransomware cannot encrypt or delete are an essential defense against ransomware extortion.