Should be more clear for device name opt
We are allowed to config the volume_device_name when
running tests, but not or hypervisors guarantee that
they will respect the user defined device name(KVM),
and tests may fail due to inappropriate device name
set.
We should include this information about this opt
to avoid confusions.
Change-Id: I193940c3ae565dd4803f19a77326006ebdc038cc
diff --git a/tempest/config.py b/tempest/config.py
index 93b8ab2..f1cc23a 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -291,7 +291,9 @@
cfg.StrOpt('volume_device_name',
default='vdb',
help="Expected device name when a volume is attached to "
- "an instance"),
+ "an instance. Not all hypervisors guarantee that they "
+ "will respect the user defined device name, tests may "
+ "fail if inappropriate device name is set."),
cfg.IntOpt('shelved_offload_time',
default=0,
help='Time in seconds before a shelved instance is eligible '