Is elasticity and scalability the same?

Question

AHAMEDSATHICK MOHAMEDALI · Accepted Answer

They’re related, but not the same. Many people use them interchangeably in cloud discussions, but they describe different capabilities: 🔹 Scalability • Definition: The ability of a system to handle increased workload by adding resources (vertical or horizontal). • Focus: Planned growth. • How it works: o Vertical scaling (scale up/down): Adding more power to a single server (CPU, RAM, storage). o Horizontal scaling (scale out/in): Adding more servers or instances to distribute the load. 🔹 Elasticity • Definition: The ability of a system to automatically add or remove resources based on real-time demand. • Focus: Real-time adaptability. • How it works: Resources are dynamically provisioned and released without manual intervention.

Is elasticity and scalability the same?

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