Snapshots vs Backups

Snapshots vs Backups: Key Differences

Snapshots

Local Filesystem Snapshots

• Local filesystem snapshots stored on the same physical node
• Instant creation - takes seconds to create
• Node-specific - cannot be moved or cloned to other nodes
• Purpose: Quick rollback points for testing or temporary changes
• Limitation: Tied to the local storage of the specific node

Backups

Centralized Backup Storage

• Complete VM images stored in centralized backup storage
• Cluster-wide availability - accessible from any node
• Portable - can be used to restore or clone VMs anywhere in the cluster
• Purpose: Disaster recovery, long-term storage, and VM cloning
• Advantage: Not tied to any specific node's local storage