Data center management requires air-gapped immutable backups to mitigate ransomware risks. In this article, we examine how combining Veeam Backup & Replication with Proxmox VE storage targets guarantees strict SLA compliance and zero RPO loss.
Key Architecture Components
1. **Primary Cluster**: VMware vSphere & Proxmox VE hypervisors across 3 redundancy zones.
2. **Immutable Backup Repository**: Linux Hardened Repository (LHR) utilizing XFS file system with immutable bit attributes.
3. **Offsite Replication**: Encrypted TLS 1.3 sync to AWS S3 Object Lock storage.
Testing & Verification
Backup strategies are only as good as their restore tests. We automate monthly SureBackup restore jobs in isolated sandbox VLANs to verify SQL Server DB integrity and Active Directory domain controller sync.