| Column Name | Data Type | Description | 
| block_size | NUMBER | Size in bytes of the blocks which form this StorageExtent. | 
| cache_state | STRING | The volume’s cache state. | 
| caption | STRING | Short textual description of the object. | 
| consumable_blocks | NUMBER | The maximum number of blocks of size BlockSize  which are  available for consumption when layering StorageExtents using the BasedOn association. | 
| copy_capacity_kb | NUMBER | Capacity of the vdisk copies. | 
| copy_count | NUMBER | The number of copies of this vdisk. | 
| creation_class_name | STRING | Name of the class or the subclass used in the creation of an instance | 
| data_organization | STRING | Type of data organization used: Other, Unknown, Fixed Block, Variable Block,  Count Key Data. | 
| data_redundancy | NUMBER | Number of complete copies of data currently maintained. | 
| delta_reservation | NUMBER | This is a percentage that specifies the amount of space that should be reserved in a replica for caching changes. | 
| element_name | STRING | A user-friendly name for the object | 
| extent_status | STRING | Additional status information | 
| flash_copy_id | STRING | The flash copy ID of the volume. | 
| flash_copy_map_count | NUMBER | The number of Flash Copy Mappings that contain this volume. | 
| flash_copy_name | STRING | The flash copy name of the volume. | 
| free_capacity_kb | NUMBER | Amount of the storage volume’s capacity that is available. | 
| is_controlled | STRING | This property provides a quick interface for finding Devices with no ControlledBy associations to Controllers | 
| is_formatted | STRING | Has the volume been formatted by SAN Volume Controller? | 
| is_mirrored | STRING | Indicates if the volume is mirrored: Y or N. | 
| is_no_single_point_failure | STRING | Indicates whether or not there exists no single point of failure. | 
| is_primordial | STRING | If true, indicates that the containing System  does not have the ability to create or delete this operational element. | 
| is_sequential_access | STRING | Set to TRUE if the Storage is sequentially accessed by a MediaAccessDevice | 
| is_space_efficient | STRING | Indicates if any MirrorExtent associated with this StorageVolume is Space-Efficient | 
| is_throttle_mbs | STRING | If true,  the units for Throttle are MB/s otherwise they are IO/s. | 
| is_underlying_redundancy | STRING | True indicates that the underlying StorageExtent(s) participate in a StorageRedundancyGroup | 
| last_updated | DATE | Date and time last updated | 
| native_status | STRING | The volume’s native operational status: Offline, Online, Degraded, Formatting. | 
| nbr_of_blocks | NUMBER | Total number of logically contiguous blocks of size Block Size which form this Extent. | 
| operational_status | STRING | The status of the volume. | 
| package_redundancy | NUMBER | How many physical packages can currently fail without data loss | 
| preferred_node | STRING | The ID of the preferred node. | 
| real_capacity_kb | NUMBER | The storage volume’s real capacity. | 
| sc_id | STRING | The remote copy ID of the volume | 
| sc_name | STRING | The remote copy name of the volume | 
| storage_volume_id | STRING | Unique ID for the volume | 
| storage_volume_name | STRING | Storage volume name | 
| svc_io_group_id | NUMBER | Foreign key to aps_v_svc_io_group | 
| svc_storage_pool_id | NUMBER | Foreign key to aps_v_svc_storage_pool | 
| svc_storage_system_id | NUMBER | Foreign key to aps_v_svc_storage_system | 
| svc_storage_volume_id | NUMBER | Primary key | 
| sync_rate | NUMBER | If a disk is mirrored the synchronization rate controls the speed at which the mirrored copies keep themselves in sync | 
| system_name | STRING | System name | 
| throttle | NUMBER | The maximum bandwidth of the volume | 
| unique_id | STRING | The unique ID of the volume. | 
| unit_device_id | NUMBER | The volume’s Unit Device Identifier as defined by OpenVMS | 
| used_capacity_kb | NUMBER | Amount of the storage volume’s capacity that is in use. | 
| volume_type | STRING | The type of the volume. Possible values: Sequential, Striped, Router, Image, Many. |