An application team is preparing to deploy an ElasticSearch application and wants all Portworx volumes...

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To ensure Portworx volumes for an ElasticSearch application are created only on specific Kubernetes nodes, the Volume Placement Strategy feature is used. This feature allows administrators to define node affinity or anti-affinity rules that restrict volume provisioning to a subset of nodes. By tagging the six nodes with appropriate labels and configuring the StorageClass or volume parameters to respect these labels, Portworx guarantees that volumes will only be provisioned on those nodes. This targeted volume placement is critical for performance optimization, data locality, and compliance with infrastructure constraints. Autopilot automates scaling and Stork manages storage-aware scheduling but does not directly control volume node placement. The Portworx deployment documentation highlights Volume Placement Strategy as the tool for precise volume-to-node mapping in Kubernetes clusters【Pure Storage Portworx Deployment Guide†source】.