What feature does a Portworx StorageClass provide to Kubernetes storage?

A Portworx StorageClass in Kubernetes is a fundamental component for enabling dynamic volume provisioning. It allows administrators to define different tiers or profiles of storage, specifying parameters such as replication factor (repl), I/O profile (ioprofile), and encryption. When a user submits a PersistentVolumeClaim (PVC) that references a Portworx StorageClass, the Portworx provisioner automatically creates a corresponding PersistentVolume (PV) that matches the defined specifications, without requiring manual intervention. This process is the essence of automated storage provisioning.

A. Automated monitoring: Monitoring is handled by separate components like Prometheus or Portworx Central, not by the StorageClass object, which defines storage policies.

C. Automated backups: While snapshot policies can be linked to a StorageClass, the automation of backup schedules and lifecycle management is handled by Portworx Backup (PX-Backup), not the StorageClass itself.

1. Portworx Enterprise Documentation

"Dynamic Provisioning": "Portworx can dynamically provision volumes for your applications. Using Kubernetes StorageClasses

you can define different storage profiles for your applications. When your users request a volume

they can select one of these profiles without having to worry about the underlying storage."

Source: Portworx by Pure Storage Official Documentation. Section: Storage Operations -> Provisioning on Kubernetes -> Dynamic Provisioning.

2. Kubernetes Official Documentation

"Storage Classes": "A StorageClass provides a way for administrators to describe the 'classes' of storage they offer... StorageClass objects are also a mechanism that allow administrators to specify a default provisioner and parameters for when a PVC does not request any specific class."

Source: Kubernetes Documentation. Section: Concepts -> Storage -> Storage Classes.

3. Portworx Enterprise Documentation

"Create a StorageClass": "A StorageClass provides a way for administrators to describe the 'classes' of storage they offer. Different classes might map to quality-of-service levels

or to backup policies

or to arbitrary policies determined by the cluster administrators. When a user creates a persistent volume claim

they can specify a storage class

which will then be used to dynamically provision a volume."

Source: Portworx by Pure Storage Official Documentation. Section: Install and Configure -> Install Portworx -> Install Portworx on Kubernetes -> Create a StorageClass.