openstack/openstack-manuals
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Merge "[config-ref] Add caution note about auto reactivation volumes for LVM driver"

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Jenkins 2016-08-31 01:14:08 +00:00 committed by Gerrit Code Review
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doc/config-reference/source/block-storage/drivers/lvm-volume-driver.rst
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@ -23,3 +23,21 @@ Use the following options to configure for the iSER transport:
iscsi_protocol = iser
.. include:: ../../tables/cinder-lvm.rst
.. caution::
When extending an existing volume which has a linked snapshot, the related
logical volume is deactivated. This logical volume is automatically
reactivated unless ``auto_activation_volume_list`` is defined in LVM
configuration file ``lvm.conf``. See the ``lvm.conf`` file for more
information.
If auto activated volumes are restricted, then include the cinder volume
group into this list:
.. code-block:: ini
auto_activation_volume_list = [ "existingVG", "cinder-volumes" ]
This note does not apply for thinly provisioned volumes
because they do not need to be deactivated.