[ovirt-users] for some reason ovirtnode creates unecessary vg and lvs

I managed to configure the mail iscsi domain for my ovirt 4.1 engine and node , it connects to the storage initially and initialises the data center ,but after rebooting the node and engine , it creates unecessary vg and lvs like below 280246d3-ac7b-44ff-8c03-dc2bcb9edb70 d5104206-5863-4f9d-9ea7-2b140c97d65f -wi-a----- 128.00m 2d57ab88-16e4-4007-9047-55fc4a35b534 d5104206-5863-4f9d-9ea7-2b140c97d65f -wi-a----- 128.00m ids d5104206-5863-4f9d-9ea7-2b140c97d65f -wi-a----- 128.00m inbox d5104206-5863-4f9d-9ea7-2b140c97d65f -wi-a----- 128.00m leases d5104206-5863-4f9d-9ea7-2b140c97d65f -wi-a----- 2.00g master d5104206-5863-4f9d-9ea7-2b140c97d65f -wi-a----- 1.00g metadata d5104206-5863-4f9d-9ea7-2b140c97d65f -wi-a----- 512.00m outbox d5104206-5863-4f9d-9ea7-2b140c97d65f -wi-a----- 128.00m xleases d5104206-5863-4f9d-9ea7-2b140c97d65f -wi-a----- 1.00g whats the cause of this NB:mY ISCSI storage is on a centos 7 box