Add a note that even though there are configuration options
governing the number and total GB consumed by volumes in the
image-volume-cache, the internal tenant configured as the
cache owner is nonetheless subject to quotas, which can affect
the actual amount of stuff cached.
Change-Id: Ice12d2f7401fa481bb410c7518bfc436d90bb86a
Closes-bug: #2045984
This directory is intended to hold any documentation that relates to
how to run or operate Cinder. Previously, this content was in the
admin-guide section of openstack-manuals.