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Merged
adrian207 merged 2 commits into from
Oct 24, 2025
Merged

Feature/server migration #9

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67b137b
Merge pull request #8 from adrian207/master
adrian207 Oct 24, 2025
fc2bde9
docs: Update hardware requirements to server-based calculations
adrian207 Oct 24, 2025
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35 changes: 25 additions & 10 deletions ON_PREMISES_README.md
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Expand Up @@ -78,24 +78,39 @@ NO CLOUD │ 100% LOCAL │ AIR-GAP READY

---

## 📊 Hardware Requirements
## 📊 Hardware Requirements (Server Migration Sizing)

### Tier 1 (50-100 users)
### Tier 1 (10-50 servers)
```
1 server: 24 vCPU, 128 GB RAM, 2 TB SSD
Cost: ~$10,000
2 servers (redundancy): 24 vCPU, 128 GB RAM each
Storage: 2 TB NVMe + 8 TB HDD per server
Migration Rate: ~5 servers per day
Cost: ~$15,000

Formula: 30 servers × 100 GB × 2 = 6 TB migration data
```

### Tier 2 (500-1,000 users)
### Tier 2 (50-200 servers)
```
3 servers: 32 vCPU, 256 GB RAM, 12 TB each
Cost: ~$40,000
3-4 servers: 40 vCPU, 384 GB RAM each
Storage: 4 TB NVMe + 20 TB HDD per server
Migration Rate: ~15-20 servers per day
Cost: ~$65,000

Formula: 150 servers × 200 GB × 2 = 60 TB migration data
Recommended: Separate NAS/SAN for file server data
```

### Tier 3 (3,000-5,000 users)
### Tier 3 (200-1,000 servers)
```
6 servers: 48 vCPU, 512 GB RAM, 24 TB each
Cost: ~$150,000
6-8 servers: 56 vCPU, 768 GB RAM each
Storage: 8 TB NVMe + 32 TB SSD per server
Plus: Dedicated 100-500 TB SAN/Ceph cluster
Migration Rate: ~50+ servers per day
Cost: ~$225,000

Formula: 500 servers × 300 GB × 2 = 300 TB migration data
Network: 40/100 Gbps backend recommended
```

---
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