# S3 Status Variables

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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).
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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>

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