Cohesity FortKnox vs Commvault Kubernetes Backup: Side-by-Side Comparison (2026)

Cohesity FortKnox

Mid-market and enterprise teams facing ransomware threats need FortKnox because its air-gapped virtual vault makes encrypted backups genuinely unreachable during active attacks, not just theoretically so. The immutable snapshots with retention locks address NIST PR.DS and RC.RP functions that most backup tools treat as afterthoughts, while integrated threat scanning before restore prevents you from recovering compromised data. Skip this if your organization can tolerate a longer recovery window; the isolation model trades some restore speed for the certainty that your backup tier stays isolated even when production infrastructure is already encrypted.

Commvault Kubernetes Backup

Enterprise teams running Kubernetes across multiple clouds need Commvault Kubernetes Backup primarily for its air-gapped backup copies, which stop ransomware dead in ways incremental snapshots cannot. The tool covers NIST RC.RP and RS.MI strongly, meaning recovery actually works after incidents rather than just being documented. Skip this if your Kubernetes footprint is small or single-cluster; the licensing model assumes scale and the pre-configured automation pays off only when you're managing dozens of workloads across Azure, AWS, and on-premises simultaneously.