Volumes that start with MDV_CRS are metadata volumes that contain configuration information used in SVM-DR and MetroCluster. These volumes are created during the MetroCluster configuration setup proce...Volumes that start with MDV_CRS are metadata volumes that contain configuration information used in SVM-DR and MetroCluster. These volumes are created during the MetroCluster configuration setup process: Implementing the MetroCluster configuration Volumes that start with MDV_aud are staging volumes used to store auditing information before they are consolidated to the appropriate system volumes that were created/specified during auditing setup