Contains information about disks defined in the [server configuration](../../engines/table-engines/mergetree-family/mergetree.md#table_engine-mergetree-multiple-volumes_configure).
Columns:
-`name` ([String](../../sql-reference/data-types/string.md)) — Name of a disk in the server configuration.
-`path` ([String](../../sql-reference/data-types/string.md)) — Path to the mount point in the file system.
-`free_space` ([UInt64](../../sql-reference/data-types/int-uint.md)) — Free space on disk in bytes.
-`total_space` ([UInt64](../../sql-reference/data-types/int-uint.md)) — Disk volume in bytes.
-`keep_free_space` ([UInt64](../../sql-reference/data-types/int-uint.md)) — Amount of disk space that should stay free on disk in bytes. Defined in the `keep_free_space_bytes` parameter of disk configuration.
