ADVANCED // ENTERPRISE
MODULE 10 // SCALING

Capacity Management.

Manage capacity and optimize costs at scale.

CAPACITY STRATEGY

Capacity management balances performance (enough resources for peak load) with cost (not paying for unused capacity). Auto-scaling helps but isn't magic.

Understand scaling characteristics: how quickly can you add capacity, how quickly does demand change, and what's the cost of under-provisioning vs over-provisioning?

Forecast demand using historical patterns and planned events. Don't wait for auto-scaling to react—pre-scale for known peaks.

REACTIVE SCALING

Scale based on current metrics. Simple but lags behind demand spikes.

BASIC

PREDICTIVE SCALING

Scale based on forecasted demand. Handles known patterns (daily cycles, events).

ADVANCED

RESERVED CAPACITY

Pre-purchased capacity for baseline load. Cost savings for predictable workloads.

COST OPT

SPOT INSTANCES

Use interruptible capacity for batch work. Significant savings for flexible workloads.

SAVINGS
KNOWLEDGE CHECK // Q10
Why pre-scale for known peaks instead of relying on auto-scaling?