Create PV

To create a PV, you need to first create a PVC. Once done, IOMesh will detect the creation of the PVC and automatically generate a new PV based on its specs, binding them together. Then the pair of PV and PVC will be ready for use.

NOTE: IOMesh supports access modes ReadWriteOnce，ReadWriteMany，and ReadOnlyMany, but ReadWriteMany and ReadOnlyMany are only for PVs with volumemode as Block.

Prerequisite

Ensure that there is already a StorageClass available for use.

Procedure

1. Create a YAML config pvc.yaml. Configure the fields accessModes, storage, and volumeMode.

   # Source: pvc.yaml
   apiVersion: v1
   kind: PersistentVolumeClaim
   metadata:
     name: iomesh-example-pvc
   spec:
     storageClassName: iomesh-csi-driver
     accessModes:
       - ReadWriteOnce # Specify the access mode. 
     resources:
       requests:
         storage: 10Gi # Specify the storage value.
     volumeMode: Filesystem # Specify the volume mode.
   

   For details, refer to Kubernetes Persistent Volumes.

2. Apply the YAML config to create the PVC. Once done, the corresponding PV will be created.

   kubectl apply -f pvc.yaml
   

3. Verify that the PVC was created.

   kubectl get pvc iomesh-example-pvc
   

   If successful, you should see output like this:

   NAME                                        STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS        AGE
   iomesh-example-pvc                          Bound    pvc-34230f3f-47dc-46e8-8c42-38c073c40598   10Gi        RWO            iomesh-csi-driver   21h   
   

4. View the PV bound to this PVC. You can find the PV name from the PVC output.

   kubectl get pv pvc-34230f3f-47dc-46e8-8c42-38c073c40598
   

   If successful, you should see output like this:

   NAME                                       CAPACITY   RECLAIM POLICY   STATUS   CLAIM                        STORAGECLASS
   pvc-34230f3f-47dc-46e8-8c42-38c073c40598   10Gi       Delete           Bound    default/iomesh-example-pvc   iomesh-csi-driver