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DEPLOYMENT 92 — Bare Metal → Azure Stack HCI → Windows/Linux VMs + AKS

Deployment Stack Overlay

┌──────────────────────────────────────────────────┐
│             Workload (App/Process)             │
├──────────────────────────────────────────────────┤
│            Windows/Linux VMs + AKS             │
├──────────────────────────────────────────────────┤
│                Azure Stack HCI                 │
├──────────────────────────────────────────────────┤
│                   Bare Metal                   │
└──────────────────────────────────────────────────┘

Detailed System Infrastructure

┌─────────────────────────────────────────────────────────────────┐
│              WORKLOADS                                          │
│  ┌──────────────────────────────────────────────────────────┐   │
│  │  Windows Server VMs │ Linux VMs │ AKS Arc K8s clusters   │   │
│  │  Azure Arc-enabled data services (Arc SQL, Arc PG)       │   │
│  └──────────────────────────────────────────────────────────┘   │
└────────────────────────────┬────────────────────────────────────┘
                             │
┌────────────────────────────▼────────────────────────────────────┐
│              AZURE STACK HCI MANAGEMENT                         │
│  ┌──────────────────────────────────────────────────────────┐   │
│  │  Azure Portal (manages on-premises HCI via Azure Arc)    │   │
│  │  Windows Admin Center (local web UI)                     │   │
│  │  ┌────────────────────────────────────────────────────┐  │   │
│  │  │  AKS on Azure Stack HCI (K8s clusters)             │  │   │
│  │  │  Azure Arc (extends Azure mgmt to on-premises)      │  │   │
│  │  │  Azure Monitor (telemetry to Azure cloud)           │  │   │
│  │  │  Microsoft Defender for Cloud (security posture)    │  │   │
│  │  └────────────────────────────────────────────────────┘  │   │
│  └──────────────────────────────────────────────────────────┘   │
└────────────────────────────┬────────────────────────────────────┘
                             │
┌────────────────────────────▼────────────────────────────────────┐
│              AZURE STACK HCI OS (on each node)                  │
│  ┌──────────────────────────────────────────────────────────┐   │
│  │  Hyper-V (VMs) │ S2D (Storage Spaces Direct)             │   │
│  │  SDN (Software Defined Networking — via Windows SDN)     │   │
│  │  Cluster Services (Windows Server Failover Clustering)   │   │
│  └──────────────────────────────────────────────────────────┘   │
│  Storage Spaces Direct (S2D) — pools local NVMe across nodes    │
└────────────────────────────┬────────────────────────────────────┘
                             │
┌────────────────────────────▼────────────────────────────────────┐
│                       BARE METAL                                │
│  Azure Stack HCI certified hardware (600+ solutions listed)     │
│  Intel Xeon / AMD EPYC │ RAM ECC │ NVMe (S2D) │ 10/25GbE RoCE │
└─────────────────────────────────────────────────────────────────┘

Technical Implementation Details

• Networking: Often relies on Linux bridges (lxcbr0) and veth pairs.
• Storage: Local directory or CoW filesystems (ZFS/Btrfs).
• Isolation: Hardware-assisted virtualization (VT-x/AMD-V).
• Storage: Virtual disks (qcow2/vmdk) on shared or local storage.
• Management: Orchestrated via native CLI or high-level API controllers.

Use Case

Microsoft-centric enterprises running on-premises HCI with Azure cloud management — hybrid cloud strategy bridging on-premises with Azure services.

Pros

• Azure portal management for on-premises workloads
• Azure Arc extends cloud services on-premises
• Native Windows + Hyper-V support
• Microsoft support SLA

Cons

• Microsoft Azure subscription required (ongoing cost)
• Windows-centric — Linux is secondary
• Certified hardware list restricts choices
• Complex licensing (Azure Stack HCI + Windows Server + Arc)