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sys.dm_io_cluster_shared_drives (Transact-SQL)

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Applies to: SQL Server Azure SQL Managed Instance Analytics Platform System (PDW)

This view returns the drive name of each of the shared drives if the current server instance is a clustered server. If the current server instance is not a clustered instance it returns an empty rowset.

Note

To call this from Analytics Platform System (PDW), use the name sys.dm_pdw_nodes_io_cluster_shared_drives.

Column name Data type Description
DriveName nchar(2) The name of the drive (the drive letter) that represents an individual disk taking part in the cluster shared disk array. Column is not nullable.
pdw_node_id int Applies to: ssPDW

The identifier for the node that this distribution is on.

Remarks

When clustering is enabled, the failover cluster instance requires data and log files to be on shared disks so that they may be accessed after the instance fails over to another node. Each of the rows in this view represents a single shared disk which is used by this clustered SQL Server instance. Only disks listed by this view can be used to store data or log files for this instance of SQL Server. The disks listed in this view are those that are in the cluster resource group associated with the instance.

Note

This view will be deprecated in a future release. We recommend that you use sys.dm_io_cluster_valid_path_names (Transact-SQL) instead.

Permissions

The user must have VIEW SERVER STATE permission for the SQL Server instance.

Permissions for SQL Server 2022 and later

Requires VIEW SERVER PERFORMANCE STATE permission on the server.

Examples

The following example uses sys.dm_io_cluster_shared_drives to determine the shared drives on a clustered server instance:

SELECT * FROM sys.dm_io_cluster_shared_drives;

This is the result set:

DriveName

---------

m

n

See also

sys.dm_io_cluster_valid_path_names (Transact-SQL)
sys.dm_os_cluster_nodes (Transact-SQL)
sys.fn_servershareddrives (Transact-SQL)
Dynamic Management Views and Functions (Transact-SQL)