To Reproduce Steps to reproduce the behavior:

1. Deploy RHOSO and try to launch an instance with iscsi connected volume.
2. The following WARNING message is shown every os-brick operation related to volume attachment/detachment

   WARNING os_brick.initiator.connectors.base [None req-XXXX XXX XXX - - default default] Service needs to call os_brick.setup() before connecting volumes, if it doesn't it will break on the next release
   

Expected behavior

• The message should not be shown because it is annoying

Bug impact

• The warning message is filled up the log files and it is really annoying to our users because it doesn't indicate the actual issues.

Known workaround

• Set os_brick/lock_path in nova.conf

Additional context

• From OSP17.1, this message is shown but it is annoying in every volume operation in os-brick.
• Nova doesn't have the related configuration in os-brick.