On Mon, Jan 11, 2010 at 10:06 AM, Simon Loewenthal/NL/Tele2 <simon.loewenthal@klunky.co.uk> wrote: > I don't see the connection with multipath and the lvm.conf? Multipath > is running well. <quote> How do I really know LVM is really using the mutlipath other than disabling one of the ports on the switch, which I don't wish to do on a production box. </quote> multipath -ll will show you your multipath topology. you can then see if the top-level multipath device matches the pvs that are in use (such as pvdisplay -v). For "testing" multipathing, which you say is running well, look into dmsetup with which you can alter the topology and remove paths. _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/