V$ASM_VOLUME

In an Automatic Storage Management instance, V$ASM_VOLUME displays information about each Oracle ADVM volume. In a database instance, V$ASM_VOLUME displays no rows.

Column	Datatype	Description
`GROUP_NUMBER`	`NUMBER`	Cluster-wide number assigned to the disk group (composite primary key)
`VOLUME_NAME`	`VARCHAR2(30)`	Name of the volume
`COMPOUND_INDEX`	`NUMBER`	A 32-bit number consisting of a disk group number in the high-order 8 bits and a volume number in the low-order 24 bits (for efficient access to the view)
`SIZE_MB`	`NUMBER`	Size of the volume (in megabytes)
`VOLUME_NUMBER`	`NUMBER`	Number of the Volume within the disk group (composite primary key)
`REDUNDANCY`	`VARCHAR2(6)`	Redundancy type for the volume: `UNPROT` `HIGH` `MIRROR` `PARITY`
`STRIPE_COLUMNS`	`NUMBER`	Number of columns in a stripe set
`STRIPE_WIDTH_K`	`NUMBER`	Stripe width of the volume (in kilobytes)
`STATE`	`VARCHAR2(8)`	Indicates whether the volume is enabled (`ENABLED`) or disabled (`DISABLED`)
`FILE_NUMBER`	`NUMBER`	Volume file number
`INCARNATION`	`NUMBER`	Volume file incarnation number
`DRL_FILE_NUMBER`	`NUMBER`	volume Dirty Region Logging (DRL) file used for mirrored volumes
`RESIZE_UNIT_MB`	`NUMBER`	Volume allocation unit (in megabytes) that a volume can be created
`USAGE`	`VARCHAR2(30)`	Optional usage string for the volume
`VOLUME_DEVICE`	`VARCHAR2(256)`	OSD path for the volume device
`MOUNTPATH`	`VARCHAR2(1024)`	Optional mount path string for the volume
`REGPATH`	`VARCHAR2(1024)`	???
`REGISTERED`	`VARCHAR2(5)`	??? (`TRUE`) or not (`FALSE`)