# S3 Status Variables

{% hint style="info" %}
The [S3 storage engine](https://mariadb.com/docs/server/server-usage/storage-engines/s3-storage-engine) is available from [MariaDB 10.5.4](https://app.gitbook.com/s/aEnK0ZXmUbJzqQrTjFyb/community-server/old-releases/10.5/10.5.4).
{% endhint %}

This page documents status variables related to the [S3 storage engine](https://mariadb.com/docs/server/server-usage/storage-engines/s3-storage-engine). See [Server Status Variables](https://mariadb.com/docs/server/server-management/variables-and-modes/server-status-variables) for a complete list of status variables that can be viewed with [SHOW STATUS](https://mariadb.com/docs/server/reference/sql-statements/administrative-sql-statements/show/show-status).

See also the [Full list of MariaDB options, system and status variables](https://mariadb.com/docs/server/server-management/variables-and-modes/full-list-of-mariadb-options-system-and-status-variables).

#### `S3_pagecache_blocks_not_flushed`

* Description:
* Scope:
* Data Type:
* Introduced: [MariaDB 10.5](https://app.gitbook.com/s/aEnK0ZXmUbJzqQrTjFyb/community-server/old-releases/10.5/what-is-mariadb-105)

#### `S3_pagecache_blocks_unused`

* Description:
* Scope:
* Data Type:
* Introduced: [MariaDB 10.5](https://app.gitbook.com/s/aEnK0ZXmUbJzqQrTjFyb/community-server/old-releases/10.5/what-is-mariadb-105)

#### `S3_pagecache_blocks_used`

* Description:
* Scope:
* Data Type:
* Introduced: [MariaDB 10.5](https://app.gitbook.com/s/aEnK0ZXmUbJzqQrTjFyb/community-server/old-releases/10.5/what-is-mariadb-105)

#### `S3_pagecache_reads`

* Description:
* Scope:
* Data Type:
* Introduced: [MariaDB 10.5](https://app.gitbook.com/s/aEnK0ZXmUbJzqQrTjFyb/community-server/old-releases/10.5/what-is-mariadb-105)

<sub>*This page is licensed: CC BY-SA / Gnu FDL*</sub>

{% @marketo/form formId="4316" %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://mariadb.com/docs/server/server-usage/storage-engines/s3-storage-engine/s3-storage-engine-status-variables.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.