--- title: Change the default StorageClass content_type: task weight: 90 --- This page shows how to change the default Storage Class that is used to provision volumes for PersistentVolumeClaims that have no special requirements. ## {{% heading "prerequisites" %}} {{< include "task-tutorial-prereqs.md" >}} {{< version-check >}} ## Why change the default storage class? Depending on the installation method, your Kubernetes cluster may be deployed with an existing StorageClass that is marked as default. This default StorageClass is then used to dynamically provision storage for PersistentVolumeClaims that do not require any specific storage class. See [PersistentVolumeClaim documentation](/docs/concepts/storage/persistent-volumes/#persistentvolumeclaims) for details. The pre-installed default StorageClass may not fit well with your expected workload; for example, it might provision storage that is too expensive. If this is the case, you can either change the default StorageClass or disable it completely to avoid dynamic provisioning of storage. Deleting the default StorageClass may not work, as it may be re-created automatically by the addon manager running in your cluster. Please consult the docs for your installation for details about addon manager and how to disable individual addons. ## Changing the default StorageClass 1. List the StorageClasses in your cluster: ```bash kubectl get storageclass ``` The output is similar to this: ```bash NAME PROVISIONER AGE standard (default) kubernetes.io/gce-pd 1d gold kubernetes.io/gce-pd 1d ``` The default StorageClass is marked by `(default)`. 1. Mark the default StorageClass as non-default: The default StorageClass has an annotation `storageclass.kubernetes.io/is-default-class` set to `true`. Any other value or absence of the annotation is interpreted as `false`. To mark a StorageClass as non-default, you need to change its value to `false`: ```bash kubectl patch storageclass standard -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"false"}}}' ``` where `standard` is the name of your chosen StorageClass. 1. Mark a StorageClass as default: Similar to the previous step, you need to add/set the annotation `storageclass.kubernetes.io/is-default-class=true`. ```bash kubectl patch storageclass gold -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}' ``` Please note you can have multiple `StorageClass` marked as default. If more than one `StorageClass` is marked as default, a `PersistentVolumeClaim` without an explicitly defined `storageClassName` will be created using the most recently created default `StorageClass`. When a `PersistentVolumeClaim` is created with a specified `volumeName`, it remains in a pending state if the static volume's `storageClassName` does not match the `StorageClass` on the `PersistentVolumeClaim`. 1. Verify that your chosen StorageClass is default: ```bash kubectl get storageclass ``` The output is similar to this: ```bash NAME PROVISIONER AGE standard kubernetes.io/gce-pd 1d gold (default) kubernetes.io/gce-pd 1d ``` ## {{% heading "whatsnext" %}} * Learn more about [PersistentVolumes](/docs/concepts/storage/persistent-volumes/).