using osds' uuids for the command generation

xtreemfs_client/OSDManager.py

@@ -205,8 +205,8 @@ class OSDManager(object):
                         # if no replication is used (otherwise than for moving the files from osd to osd),
                         # we should reset the replication policy to none
                         policy_command = div_util.create_replication_policy_command(absolute_file_path)
-                        create_command = div_util.create_create_replica_command(absolute_file_path, osd_for_file)
-                        delete_command = div_util.create_delete_replica_command(absolute_file_path, osd_of_file)
+                        create_command = div_util.create_create_replica_command(absolute_file_path, osd_for_file.uuid)
+                        delete_command = div_util.create_delete_replica_command(absolute_file_path, osd_of_file.uuid)
 
                         change_policy_command_list.append(div_util.command_list_to_single_string(policy_command))
                         create_replica_command_list.append(div_util.command_list_to_single_string(create_command))