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Cloud Operations Quick Reference

April 24, 2026

A compact reference for cloud models, architecture, automation, monitoring, security, recovery, and troubleshooting.

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Service and deployment models

Need Typical model
Control of OS and middleware IaaS, with greater customer operating responsibility
Managed application runtime PaaS
Complete business application SaaS
Owned infrastructure or special placement needs Private cloud or hybrid design
Elastic capacity and managed services Public cloud

Architecture and deployment

Goal Practical pattern
Availability Separate failure domains and validate failover
Scale Horizontal scaling, load balancing, autoscaling, and stateless design where appropriate
Repeatability Infrastructure as code, version control, review, and rollback
Drift control Desired state, policy, configuration management, and drift detection
Secure release Tested CI/CD, staged deployment, approval, and rollback
Secure secrets Managed secret store, restricted identities, rotation, and audit

Operations and recovery

Symptom or objective Useful first check
Slow application Saturation, latency by tier, storage I/O, network path, and recent changes
Unavailable service Health checks, DNS, load balancer, workload status, dependencies, and policy
Unexpected cost Utilization, idle capacity, storage tier, data transfer, and commitments
Failed backup Schedule, identity, target, retention, and restore-test evidence
Capacity warning Trend, quota, autoscaling limit, reservation, and forecast
RTO / RPO Required restoration time / allowed data-loss interval

Gather logs, metrics, traces, alerts, and change records before making a broad change. Validate both the user-visible service outcome and the recovery path after remediation.

Revised on Friday, September 11, 2026
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