Following query will show you ClickHouse Disks via reading system.disks table.
SELECT name, path, formatReadableSize(sum(free_space)) as free_space, formatReadableSize(sum(total_space)) as total_space, formatReadableSize(sum(keep_free_space)) as keep_free_space, type FROM system.disks GROUP BY name, path, type FORMAT PrettyCompact
Example Output:
Query id: 92dac3b4-7b3e-4d98-9e64-d4d071669e77 ┌─name────┬─path─────────────────┬─free_space─┬─total_space─┬─keep_free_space─┬─type──┐ │ default │ /var/lib/clickhouse/ │ 46.11 GiB │ 58.37 GiB │ 0.00 B │ local │ └─────────┴──────────────────────┴────────────┴─────────────┴─────────────────┴───────┘ 1 row in set. Elapsed: 0.018 sec.