---
name: "thin_trim"
section: "8"
platform: "linux"
package: "thin-provisioning-tools"
version: "1.3.4-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/thin_trim"
---

# thin\_trim(8)

Issue discard requests for free pool space (offline tool).

## NAME

**thin\_trim** - Issue discard requests for free pool space (offline tool).

## SYNOPSIS

```
thin_trim [options] --metadata-dev {device|file} --data-dev {device|file}
```

## DESCRIPTION

**thin\_trim sends discard requests to the pool device for unprovisioned areas.**

**This tool cannot be run on live metadata.**

## OPTIONS

- **-h, --help**

  **Print help and exit.**

- **-V, --version**

  **Print version information and exit.**

## SEE ALSO

**[thin\_dump(8)](/thin_dump/8.md), [thin\_repair(8)](/thin_repair/8.md), [thin\_restore(8)](/thin_restore/8.md), [thin\_rmap(8)](/thin_rmap/8.md), [thin\_metadata\_size(8)](/thin_metadata_size/8.md)**

## AUTHOR

**Joe Thornber \<ejt@redhat.com\>**