Infrastructure · Data artifact

Replica Placement Policy

Data artifactInfrastructureInfrastructurearc:ReplicaPlacementPolicy

A declarative scheduling constraint set, such as pod anti-affinity and zone spread rules, that keeps replicas of a service off shared failure domains.

Responsibility. Constrains where service replicas may be co-located.

Also known as: Pod anti-affinity rules, Topology spread constraints

Direct neighbourhood (hover for relationship types)

Relationships

constrains control

Container Orchestrator Ch4.5

Design guidance

MUST explicitly design high availability through placement rules, redundant infrastructure and runbooks; it does not emerge automatically.

Classification

Technologies: Kubernetes
Quality attributes: Reliability (ISO/IEC 25010 | NIST AI RMF: valid and reliable)
Risks mitigated: Single node or zone failure taking down all replicas

Sources

Ch4.5: T. Nguyen, "NVIDIA NIM and Triton Inference Server," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 4.5. ISBN: 9798244538229.