Vertical Scaling

Kind: technique

Layer: Performance Core

Record: architecture:vertical-scaling

Severity: contextual

Scope: infrastructure, process

Canonical: Ontology

A technique for adding capacity by giving one instance more CPU, memory or I/O.

Listed in Architecture principles, after Horizontal Scaling and before Elasticity.

Requires

• Resource Headroom

Reinforces

• Simplicity

Enables

• Capacity Increase without Distribution

Conflicts with

• Hard Resource Ceiling

In tension with

• Cost/Limit

Tensions

• Vertical Scaling / Cost/Limit

Violated by

• Hard Resource Ceiling

Refactored by

• Profiling
• Horizontal Scaling

Severity

• contextual

Category

• Scalability / Performance / Optimization

Linked from

• Quality Attributes
• Scalability / Performance / Optimization
• Severity levels
• The resolutions