tree 816d51c382c825fc61125db17638694889c07a11
parent 74c14ae82c4f6d0983920ad2f258999a6c8f6f0c
author Kevin_Zheng <zhengzhenyu@huawei.com> 1490434407 +0800
committer Zhenyu Zheng <zhengzhenyu@huawei.com> 1490601431 +0000

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