OCI Services Expert
Expert guidance on Oracle Cloud Infrastructure services, cloud architecture patterns, cost optimization, deployment strategies, and OCI best practices for enterprise solutions.
Quick Reference
When to Use: OCI architecture, cost optimization, deployment planning Scope: All OCI services - compute, storage, networking, AI, database Perspective: Enterprise architect with multi-cloud awareness
Core Service Categories
Compute
- •Compute Instances: Flexible VMs, Bare Metal
- •OKE: Managed Kubernetes
- •Container Instances: Serverless containers
- •Functions: Event-driven serverless
Storage
- •Object Storage: Data lakes, backups (11 9s durability)
- •Block Volume: High-IOPS databases
- •File Storage: NFS shared filesystems
Database
- •Autonomous DB: Self-driving ATP/ADW
- •Base Database: Traditional Oracle DB
- •MySQL HeatWave: Analytics-accelerated MySQL
AI Services
- •Generative AI: LLMs (Cohere, Llama, custom)
- •AI Services: Vision, Language, Speech
- •Data Science: ML model development
Networking
- •VCN: Virtual networks
- •Load Balancer: L4/L7 balancing
- •FastConnect: Dedicated private connection
Architecture Patterns
Three-Tier Web App
code
Internet > Load Balancer > Compute (Auto-scaling) > Autonomous DB
|
WAF (DDoS)
Microservices on OKE
code
API Gateway > OKE Cluster > Service Mesh > ADB per service
|
Container Registry
Cost Optimization
| Strategy | Savings |
|---|---|
| Reserved Capacity | Up to 72% |
| Preemptible Instances | 50-70% |
| Archive Storage | 90% vs Standard |
| Auto-scaling | Pay for actual use |
OCI Verified Pricing (2026)
IMPORTANT: Always confirm at oracle.com/cloud/price-list for the latest rates.
Always Free Tier (No Time Limit)
| Resource | Free Allocation | Notes |
|---|---|---|
| Autonomous Database | 2 instances (20GB each) | ATP, ADW, or AJD |
| Ampere A1 Compute | 3,000 OCPU-hours + 18,000 GB-hours/mo | Shared across VM/Container Instances |
| Flexible Load Balancer | 1 LB (10 Mbps) | Layer 7 with SSL |
| Network Load Balancer | 1 NLB | Layer 4, fully free |
| Object Storage | 10GB Standard + 10GB Archive | |
| Data Egress | 10 TB/month | Per region |
| VCNs | 2 VCNs | |
| Block Volume | 200GB total |
Compute Pricing
| Shape | Type | Price | Notes |
|---|---|---|---|
| VM.Standard.A1.Flex | Ampere ARM | $0.0165/OCPU-hr | Best value; first 3,000 hrs FREE |
| VM.Standard.E4.Flex | AMD EPYC | $0.025/OCPU-hr | |
| VM.Standard3.Flex | Intel | $0.032/OCPU-hr | |
| Container Instance | Ampere A1 | $0.0165/OCPU-hr | Uses same free tier pool |
| BM.GPU.H100.8 | 8x H100 GPUs | ~$30/hr | AI/ML workloads |
Database Pricing
| Service | Price | Notes |
|---|---|---|
| Autonomous DB (Always Free) | $0 | 2 instances, 20GB each |
| Autonomous DB (Paid) | $0.336/OCPU-hr | License included |
| Autonomous DB (BYOL) | $0.0807/OCPU-hr | 76% savings with own license |
Storage Pricing
| Tier | Price/GB/Month | Use Case |
|---|---|---|
| Object Storage (Standard) | $0.0255 | Hot data, images, assets |
| Object Storage (Infrequent) | $0.018 + $0.01/GB retrieval | Cooler data |
| Archive Storage | $0.0026 | Long-term retention |
| Block Volume | $0.0255 | Persistent disk |
Cost Comparison vs AWS
| Scenario | OCI | AWS | Savings |
|---|---|---|---|
| 50TB Egress | ~$340 | ~$4,500 | 92% |
| 1 OCPU VM/mo | ~$12 | ~$35 | 66% |
| 100GB Object Storage | $2.55 | $2.30 | Similar |
Architecture Cost Examples
Personal Blog (Next.js):
| Component | Monthly Cost |
|---|---|
| Autonomous JSON DB | $0 (Always Free) |
| Container Instance (1 OCPU) | $0-18 (Free tier covers) |
| Object Storage (50GB) | $1.28 |
| Network Load Balancer | $0 (Free) |
| Egress (<10TB) | $0 |
| TOTAL | $0-20/mo |
Small SaaS App:
| Component | Monthly Cost |
|---|---|
| Autonomous DB (2 ECPU) | ~$240 |
| OKE Cluster (3 nodes) | ~$150 |
| Load Balancer (100 Mbps) | ~$50 |
| Object Storage (500GB) | ~$13 |
| TOTAL | ~$450/mo |
OCI vs Other Clouds
OCI Strengths:
- •Oracle DB workloads: Best performance + licensing
- •Cost: 20-40% cheaper than AWS/Azure
- •Predictable pricing: No surprise egress fees
- •Bare metal performance: RDMA, NVMe
Choose OCI for:
- •Oracle Database migration
- •High-performance computing
- •Cost-sensitive projects
- •Existing Oracle infrastructure
Related Skills
- •
oracle-adk- AI agent development - •
oracle-database-expert- Database optimization - •
oracle-agent-spec- Agent definitions
See official OCI documentation for comprehensive service documentation and deployment patterns.