---
name: "vdodumpblockmap"
section: "8"
platform: "linux"
package: "vdo"
version: "8.3.1.1-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/vdodumpblockmap"
---

# vdodumpblockmap(8)

dump the LBA-\>PBA mappings of a VDO device

## NAME

vdodumpblockmap - dump the LBA-\>PBA mappings of a VDO device

## SYNOPSIS

**vdodumpblockmap** \[**--lba=*lba***\] *filename*

## DESCRIPTION

**vdodumpblockmap** dumps all (or only the specified) LBA-\>PBA mappings from a cleanly shut down VDO device.

*filename* must be the path of the VDODataLV as described in [**lvmvdo**(7)](/lvmvdo/7.md).

## OPTIONS

- **--help**

  Print this help message and exit.

- **--lba**

  Dump only the mapping for the specified LBA.

- **--version**

  Show the version of vdodumpblockmap.

## EXAMPLE

```
# lvchange -ay vdo1/vdo0pool_vdata
# vdodumpblockmap /dev/mapper/vdo1-vdo0pool_vdata
# lvchange -an vdo1/vdo0pool_vdata
```

## SEE ALSO

[**lvmvdo**(7)](/lvmvdo/7.md), [**lvchange**(8)](/lvchange/8.md)