cinder/releasenotes/notes/remove-multiattach-request-...

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---
fixes:
- |
`Bug #2008259 <https://bugs.launchpad.net/cinder/+bug/2008259>`_:
Fixed the volume create functionality where non-admin users were
able to create multiattach volumes by providing the `multiattach`
parameter in the request body. Now we can only create multiattach
volumes using a multiattach volume type, which is also the
recommended way.
other:
- |
Removed the ability to create multiattach volumes by specifying
`multiattach` parameter in the request body of a volume create
operation. This functionality is unsafe, can lead to data loss,
and has been deprecated since the Queens release.
The recommended method for creating a multiattach volume is to
use a volume type that supports multiattach. By default, volume
types can only be created by the operator. Users who have a need
for multiattach volumes should contact their operator if a suitable
volume type is not available.