smom-dbis-138/docs/guides/EXACT_VALIDATOR_RPC_CONFIG.md

# Exact Validator and RPC Configuration

## Subscription: 6d3c4263-bba9-497c-8843-eae6c4e87192

## Core Requirements

### ✅ Validator Nodes
- **Deployment**: ALL 42 non-US Commercial Azure regions
- **VM Size**: `Standard_D4_v2` (4 vCPUs) - **SAME across ALL regions**
- **VM Family**: Dv2 Family
- **Count**: 1 validator per region
- **Total Validators**: 42 nodes

### ✅ RPC Nodes (Core Backbone)
- **Deployment**: ALL 42 non-US Commercial Azure regions
- **VM Size**: `Standard_D8s_v6` (8 vCPUs) - **SAME across ALL regions**
- **VM Family**: Dsv6 Family
- **Count**: 1 RPC node per region
- **Total RPC Nodes**: 42 nodes

### ✅ System Nodes
- **Deployment**: ALL 42 regions (AKS required)
- **VM Size**: `Standard_D2_v2` (2 vCPUs)
- **VM Family**: Dv2 Family
- **Count**: 1 system node per region
- **Total System Nodes**: 42 nodes

### ⚪ Sentry Nodes
- **Deployment**: Distributed as needed (0-1 per region)
- **VM Size**: `Standard_D4_v2` (4 vCPUs)
- **VM Family**: Dv2 Family
- **Count**: 0-42 sentry nodes (distributed)

## Exact Per-Region Configuration

### Standard Configuration (All 42 Regions)

```hcl
# Validator: SAME across ALL regions
validator_vm_size = "Standard_D4_v2"  # 4 vCPUs - Dv2 Family

# RPC: SAME across ALL regions (core backbone)
rpc_vm_size = "Standard_D8s_v6"  # 8 vCPUs - Dsv6 Family

# System: Required for AKS
system_vm_size = "Standard_D2_v2"  # 2 vCPUs - Dv2 Family

# Sentry: Distributed as needed
sentry_vm_size = "Standard_D4_v2"  # 4 vCPUs - Dv2 Family

# Node counts
node_count = {
  system     = 1  # Required for AKS
  validators = 1  # Required in ALL regions (SAME VM size)
  sentries   = 0  # Optional, distributed as needed
  rpc        = 1  # Required in ALL regions (core backbone)
}
```

## All 42 Regions

1. Belgium Central (bc)
2. Brazil South (bs)
3. Brazil Southeast (bse)
4. Canada Central (cc)
5. Canada East (ce)
6. Central India (ci)
7. Chile Central (chc)
8. East Asia (ea)
9. France Central (fc)
10. France South (fs)
11. Germany North (gn)
12. Germany West Central (gwc)
13. Indonesia Central (ic)
14. Israel Central (ilc)
15. Italy North (in)
16. Japan East (je)
17. Japan West (jw)
18. Jio India Central (jic)
19. Jio India West (jiw)
20. Korea Central (kc)
21. Korea South (ks)
22. Malaysia West (mw)
23. Mexico Central (mc)
24. New Zealand North (nzn)
25. North Europe (ne)
26. Norway East (no)
27. Norway West (nw)
28. Poland Central (pc)
29. Qatar Central (qc)
30. South Africa North (san)
31. South Africa West (saw)
32. Southeast Asia (sea)
33. South India (si)
34. Spain Central (sc)
35. Sweden Central (swc)
36. Switzerland North (sn)
37. Switzerland West (sw)
38. UAE Central (uac)
39. UAE North (uan)
40. UK South (uks)
41. UK West (ukw)
42. West Europe (we)
43. West India (wi)

## Quota Requirements Per Region

### Minimum (without sentries)
- **Dv2 Family**: 6 vCPUs (system: 2, validators: 4)
- **Dsv6 Family**: 8 vCPUs (RPC: 8)
- **Total**: 14 vCPUs per region

### With Sentries
- **Dv2 Family**: 10 vCPUs (system: 2, validators: 4, sentries: 4)
- **Dsv6 Family**: 8 vCPUs (RPC: 8)
- **Total**: 18 vCPUs per region

## Total Global Quota Requirements

### Minimum (without sentries)
- **Dv2 Family**: 252 vCPUs (6 × 42 regions)
- **Dsv6 Family**: 336 vCPUs (8 × 42 regions)
- **Total**: 588 vCPUs

### Maximum (with sentries)
- **Dv2 Family**: 420 vCPUs (10 × 42 regions)
- **Dsv6 Family**: 336 vCPUs (8 × 42 regions)
- **Total**: 756 vCPUs

## Deployment

### Configuration File
- **Main Config**: `terraform/multi-region-global.tf`
- **Region Codes**: `terraform/locals.tf`

### Enable Deployment

```bash
cd terraform
# Edit terraform.tfvars to set:
# enable_multi_region = true

terraform init
terraform plan -out=tfplan
terraform apply tfplan
```

## Validation

### Verify Validator Consistency
All 42 regions must use `Standard_D4_v2` for validators:
```bash
terraform output global_multi_region_clusters | grep validator_vm
# Should show Standard_D4_v2 for all regions
```

### Verify RPC Backbone
All 42 regions must have RPC nodes with `Standard_D8s_v6`:
```bash
terraform output global_multi_region_clusters | grep rpc_vm
# Should show Standard_D8s_v6 for all regions
```

## Summary

- ✅ **42 validator nodes** - Same VM size (`Standard_D4_v2`) across ALL regions
- ✅ **42 RPC nodes** - Same VM size (`Standard_D8s_v6`) across ALL regions (core backbone)
- ✅ **42 system nodes** - Required for AKS in all regions
- ⚪ **0-42 sentry nodes** - Distributed as needed
- ✅ **Total: 126-168 nodes** across 42 regions