V$ASM_USER

V$ASM_USER displays the effective operating system user names of connected database instances and of file owners.

Column	Datatype	Description
`GROUP_NUMBER`	`NUMBER`	Oracle ASM disk group number
`USER_NUMBER`	`NUMBER`	Oracle ASM internal unique user number
`COMPOUND_INDEX`	`NUMBER`	A 32-bit number consisting of a disk group number in the high-order 8 bits and a user number in the low-order 24 bits (for efficient access to the view)
`INCARNATION`	`NUMBER`	Incarnation number of the user
`CLUSTER_ID`	`VARCHAR2(128)`	Oracle ASM cluster ID. The `CLUSTER_ID` and `OS_NAME` pair can be used to uniquely identify a user.
`OS_ID`	`VARCHAR2(128)`	Operating system user ID
`OS_NAME`	`VARCHAR2(33)`	Operating system user name
`CON_ID`	`NUMBER`	The ID of the container to which the data pertains. Possible values include: `0`: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs. `1`: This value is used for rows containing data that pertain to only the root n: Where n is the applicable container ID for the rows containing data For this view, the value is always `0`.