If you are not familiar with the oc command, refer to OpenShift - Getting Started with the oc command.
The oc get pvc command will return the list of persistent volume cliams.
~]$ oc get pvc
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
pvc001 Bound volume001 4Gi RWO glusterfs-registry-block 1y
pvc002 Bound volume002 4Gi RWO glusterfs-registry-block 1y
pvc003 Bound volume003 4Gi RWO glusterfs-registry-block 1y
Or a single persistent volume claim can be returned.
~]$ oc get pvc pvc001
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
pvc001 Bound volume001 4Gi RWO glusterfs-registry-block 1y
The -A o --all-namespaces flag can be used to return every persistent volume claim in every namespace.
oc get pvc --all-namespaces