9.6. Disabling caching for a logical volume

This procedure disables dm-cache or dm-writecache caching that is currently enabled on a logical volume.

Conditions préalables

Procédure

Deactivate the logical volume:
```
# lvchange --activate n <vg>/<main-lv>
```
Replace vg with the volume group name, and main-lv with the name of the logical volume where caching is enabled.
Detach the cachevol or cachepool volume:
```
# lvconvert --splitcache <vg>/<main-lv>
```
Replace the following values:
Replace vg with the volume group name, and main-lv with the name of the logical volume where caching is enabled.
Exemple 9.7. Detaching the cachevol or cachepool volume
```
# lvconvert --splitcache vg/main-lv
Detaching writecache already clean.
Logical volume vg/main-lv writecache has been detached.
```

Verification steps

Check that the logical volumes are no longer attached together:

# lvs --all --options +devices <vg>

LV      Attr       Type   Devices
fastvol -wi------- linear /dev/fast-pv
main-lv -wi------- linear /dev/slow-pv

Ressources supplémentaires