⚡ Enterprise Datacenter Ops Tool
Proxmox VE Cluster Sizer & ZFS ARC Calculator
Accurately size your Proxmox hypervisor nodes, calculate ZFS ARC memory overhead, compute vCPU overcommit ratios, and verify High-Availability (HA) N-1 failover headroom.
⚙️ Cluster & Workload Parameters
3
Minimum 3 nodes recommended for HA Quorum.
ZFS Pool & Storage Specs
VM & LXC Workload Planned
vCPU Overcommit Ratio
0.83:1
🟢 Safe Ratio (< 3:1)
ZFS ARC RAM Cap
8 GB
Allocated per Node
HA Failover (N-1)
PASS
Cluster survives 1 node loss
📊 Cluster Capacity Utilization Live Telemetry
Cluster RAM Allocation (VMs + ZFS + PVE Host) 88 / 192 GB (45.8%)
vCPU Allocation (Total vCPUs / Total Physical Cores) 40 / 48 Cores
Node Memory Allocation Breakdown (Per Node)
Component Memory Allocated
Proxmox PVE Base OS Overhead 4.0 GB
ZFS ARC Memory Max Limit 8.0 GB
VM & Container Memory Allocation 26.6 GB
Remaining Free RAM Headroom 25.4 GB
💡 Engineering Recommendations
- Cluster is operating within healthy CPU overcommit parameters (< 3:1 ratio).
- ZFS ARC is adequately sized for 8 TB raw storage.
- High-Availability (HA) failover headroom is verified for N-1 node tolerance.