nova/releasenotes/notes/deprecate_sparse_lvs-99f30d70a68a028d.yaml
Sylvain Bauza 0b11a09327 Deprecate sparse LVs
That feature was never tested in Nova and we had some bugs. Deprecating it.

Change-Id: I6f05bb32313de1d832fe080c00a74508224acd77
2018-03-07 22:51:40 +01:00

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YAML

---
deprecations:
- |
The ``[libvirt]/sparse_logical_volumes`` configuration option is now
deprecated. Sparse logical volumes were never verified by tests in Nova
and some bugs were found without having fixes so we prefer to deprecate
that feature.
By default, the LVM image backend allocates all the disk size to a logical
volume. If you want to have the volume group having thin-provisioned
logical volumes, use Cinder with volume-backed instances.