Portworx Documentation has moved to https://docs.portworx.com
Portworx Enterprise version 2.13 has reached end of life and end of extended maintenance. Refer to the release support policy doc here.
Upgrade to the latest version of Portworx Enterprise for continued support. Documentation for the latest version of Portworx Enterprise can be found here.
Upgrade to the latest version of Portworx Enterprise for continued support. Documentation for the latest version of Portworx Enterprise can be found here.
Resize a Portworx PVC
This document describes how to dynamically resize a volume (PVC) using Kubernetes and Portworx.
Pre-requisites
- Resize support for PVC is in Kubernetes 1.11 and above. If you have an older version, use pxctl volume update to update the volume size.
- The StorageClass must have
allowVolumeExpansion: true
. - The PVC must be in use by a Pod.
Example
To resize a Portworx PVC, you can simply edit the PVC spec and update the size. Let’s take an example of resizing a MySQL PVC.
- Download the MySQL StorageClass spec and apply it. Note that the StorageClass has
allowVolumeExpansion: true
- Download the MySQL PVC spec and apply it. We will start with a 5GB volume.
- Download the MySQL Deployment spec and apply it. Wail till the pod becomes 1⁄1 and then proceed to next step.
- Run
kubectl edit pvc mssql-data
and change the size in the “spec” to 10Gi.
After you save the spec, kubectl describe pvc mssql-data
should have an entry like below that confirms the volume resize.
Normal VolumeResizeSuccessful 5s volume_expand ExpandVolume succeeded for volume default/mssql-data
Last edited: Tuesday, May 16, 2023
Questions? Visit the Portworx forum.