> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/server-usage/storage-engines/innodb/innodb-architecture-for-mariadb-enterprise-server/mariadb-enterprise-server-innodb-io-threads.md).

# MariaDB Enterprise Server InnoDB I/O Threads

## Overview

Starting with MariaDB Enterprise Server 10.5 and MariaDB Community Server 10.5, the InnoDB I/O Threads were replaced by the asynchronous I/O functionality in the [InnoDB Background Thread Pool](/docs/server/server-usage/storage-engines/innodb/innodb-architecture-for-mariadb-enterprise-server/mariadb-enterprise-server-innodb-background-thread-pool.md).

## Feature Summary

| Feature        | Detail                                                                                                                                                                                                                                                                       | Resources                                                                                                                                                           |
| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Thread         | InnoDB I/O Threads                                                                                                                                                                                                                                                           |                                                                                                                                                                     |
| Storage Engine | InnoDB                                                                                                                                                                                                                                                                       |                                                                                                                                                                     |
| Purpose        | Reading data from disk / Writing data to disk                                                                                                                                                                                                                                |                                                                                                                                                                     |
| Availability   |                                                                                                                                                                                                                                                                              | [MariaDB Enterprise Server](https://mariadb.com/docs/platform/)                                                                                                     |
| Quantity       | Set by [innodb\_read\_io\_threads](/docs/server/server-usage/storage-engines/innodb/innodb-system-variables.md#innodb_read_io_threads) and [innodb\_write\_io\_threads](/docs/server/server-usage/storage-engines/innodb/innodb-system-variables.md#innodb_write_io_threads) | [Configure the InnoDB I/O Threads](/docs/server/server-usage/storage-engines/innodb/mariadb-enterprise-server-innodb-operations/configure-the-innodb-io-threads.md) |

## Basic Configuration

```ini
[mariadb]
...
innodb_read_io_threads=8
innodb_write_io_threads=8
```

```sql
SET GLOBAL innodb_read_io_threads=8;
SET GLOBAL innodb_write_io_threads=8;

SHOW GLOBAL VARIABLES
   LIKE 'innodb_%_io_threads';
```

```
+-------------------------+-------+
| Variable_name           | Value |
+-------------------------+-------+
| innodb_read_io_threads  | 8     |
| innodb_write_io_threads | 8     |
+-------------------------+-------+
```

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