Using SSD persistent disks

This page explains how to create dynamic PersistentVolume resources that are backed by SSD persistent disks.

SSD persistent disks

By default, dynamically provisioned PersistentVolumes use the default StorageClass and are backed by standard hard disks. If you need faster SSDs, you can use the premium-rwo storage class from the Compute Engine persistent disk CSI Driver to provision your volumes. This can be done by setting the storageClassName field to premium-rwo in your PersistentVolumeClaim as shown in the following example:

# ssd-claim.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: my-volume
spec:
  storageClassName: premium-rwo
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 30Gi

To create the my-volume PersistentVolumeClaim object, use the following kubectl apply command:

kubectl apply -f ssd-claim.yaml

When you create this PersistentVolumeClaim object with kubectl apply, Kubernetes dynamically creates a corresponding PersistentVolume object.