cinder/releasenotes/notes/support-extend-inuse-volume-9e4atf8912qaye99.yaml

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---
features:
- |
Add ability to extend ``in-use`` volume. User should be aware of the
whole environment before using this feature because it's dependent
on several external factors below:
* nova-compute version - needs to be the latest for Pike.
* only the libvirt compute driver supports this currently.
* only iscsi and fibre channel volume types are supported on the nova side currently.
Administrator can disable this ability by updating the
``volume:extend_attached_volume`` policy rule.