> ## Documentation Index
> Fetch the complete documentation index at: https://docs.siderolabs.com/llms.txt
> Use this file to discover all available pages before exploring further.

> FilesystemTrimConfig is a filesystem trim (fstrim) configuration document.
Filesystem trim (the equivalent of the `fstrim` command) periodically discards unused blocks
of mounted filesystems which support trimming.

When this document is present, Talos builds a stable per-node, per-volume schedule and trims
eligible volumes at the configured interval. If the document is absent, no automatic trimming
is performed (unless enabled explicitly on a per-volume basis).


# FilesystemTrimConfig

```yaml theme={null}
apiVersion: v1alpha1
kind: FilesystemTrimConfig
interval: 168h0m0s # The interval at which the filesystems are trimmed.
```

<table>
  <thead>
    <tr>
      <th>Field</th>
      <th>Type</th>
      <th>Description</th>
      <th>Value(s)</th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>`interval`</td>
      <td>Duration</td>
      <td>The interval at which the filesystems are trimmed.<br /><br />The trim is performed at a stable, hash-derived time within the interval, which is different<br />for each volume and each node, so that trims are spread out over time.</td>

      <td />
    </tr>
  </tbody>
</table>