Two Layers of HA Clustering
MassiveGRID clusters are protected by two independent layers of high availability. Hardware redundancy with zero-downtime failover, plus Proxmox HA with automatic VM recovery.
Hardware Redundancy
Before Proxmox HA ever needs to act, the underlying hardware is already fully redundant. A component failure at the hardware level is absorbed transparently — your services never notice.
Dual NICs in Bonded Configuration
Every server has two network interface cards operating in active-active bond. A failed NIC means zero packet loss — traffic continues on the surviving interface.
Paired Top-of-Rack Switches
Each rack connects to two independent switches. A switch failure is invisible to the servers — traffic fails over instantly at the Ethernet level.
Redundant Routers & Uplinks
Dual routers with multiple uplinks to different Tier-1 carriers. BGP handles path selection and failover automatically — zero downtime.
Proxmox HA Clustering
If an entire physical node fails, Proxmox HA detects the outage, fences the failed node, and automatically restarts affected VMs on a healthy node. Fully automatic with no manual intervention required.
Corosync Fencing
Multi-node clusters communicate through Corosync with quorum-based fencing. Split-brain scenarios are prevented, and cluster integrity is maintained at all times.
Automatic VM Recovery
When a node fails, affected VMs are automatically restarted on healthy nodes. Total recovery takes ~2 minutes (60s detection + 60s fencing + VM boot time).
Live Migration
Move running VMs between cluster nodes with zero downtime. Planned maintenance never means service interruptions.
KVM Resource Isolation
Hardware-level isolation via KVM ensures each VM operates in its own secure enclave. No noisy neighbors, no resource contention.
Deploy on a Resilient Platform
Experience infrastructure where downtime is engineered out of existence. Two layers of protection, zero excuses.
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