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Cloud-first strategy — why we stopped buying servers

20. 08. 2020 1 min read CORE SYSTEMScloud

We bought our last physical server in 2019. Since then, the strategy has been clear: cloud-first. Not cloud-only — but every new project starts in the cloud.

Why Azure

Microsoft Azure as our primary cloud: integration with Microsoft ecosystem, enterprise customers (banks, insurance companies) prefer Azure, EU data centers for GDPR, and hybrid capabilities (Azure Arc, Azure Stack). AWS for ML workloads (SageMaker).

Migration — pragmatic approach

Lift & shift to start, then gradual re-platform. We can’t stop business for six months because of refactoring. We gradually replace components with cloud-native alternatives — VM → App Service, SQL Server → Azure SQL.

Cloud isn’t automatically cheaper

A VM running 24/7 in the cloud is more expensive than your own server. Cloud saves money with auto-scaling, shutting down dev/test outside working hours, reserved instances and managed services. Our bill in the first months exceeded budget by 40%. Only FinOps practices brought it under control — more on that next time.

Cloud-first doesn’t mean cloud-only

Every new project in the cloud, existing ones we migrate gradually. Dogma is the enemy of good decisions.

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CORE SYSTEMS

Stavíme core systémy a AI agenty, které drží provoz. 15 let zkušeností s enterprise IT.

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