A server parameter controlling concurrent disk I/O operations executed simultaneously during maintenance

maintenance_io_concurrency is a configuration parameter for setting the number of concurrent disk I/O operations that PostgreSQL expects can be executed simultaneously during maintenance operations.

maintenance_io_concurrency was added in PostgreSQL 13.

Default value

The default value for maintenance_io_concurrency is: 10.

Change history


GUC configuration item, Management / adminstration, Storage

See also