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authorJesse Andrews <anotherjesse@gmail.com>2010-05-27 23:05:26 -0700
committerJesse Andrews <anotherjesse@gmail.com>2010-05-27 23:05:26 -0700
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+..
+ Copyright [2010] [Anso Labs, LLC]
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+Volume Documentation
+====================
+
+Nova uses ata-over-ethernet (AoE) to export storage volumes from multiple storage nodes. These AoE exports are attached (using libvirt) directly to running instances.
+
+Nova volumes are exported over the primary system VLAN (usually VLAN 1), and not over individual VLANs.
+
+AoE exports are numbered according to a "shelf and blade" syntax. In order to avoid collisions, we currently perform an AoE-discover of existing exports, and then grab the next unused number. (This obviously has race condition problems, and should be replaced by allocating a shelf-id to each storage node.)
+
+The underlying volumes are LVM logical volumes, created on demand within a single large volume group.
+
+
+The :mod:`storage` Module
+-------------------------
+
+.. automodule:: nova.volume.storage
+ :members:
+ :undoc-members:
+ :show-inheritance:
+
+The :mod:`storage_unittest` Module
+----------------------------------
+
+.. automodule:: nova.tests.storage_unittest
+ :members:
+ :undoc-members:
+ :show-inheritance:
+