* Pasi Kärkkäinen wrote: > > Is it possible to resize (grow) dm-multipath devices on the > fly nowadays? > > I googled and found some discussions about the subject, but > the conclusion seemed to be it's not possible.. that was a > while ago, so I was wondering if this has been fixed/implemented.. > > Using LVM and adding another new LUN/PV is not an option > always.. it's a lot easier to manage the whole thing if it's > possible to resize/grow existing LUNs on the fly. Nowadays all disk-arrays make online LUN extension a breeze but unfortunately it seems that dm-multipath is still not able to see new size without downtime: http://www.redhat.com/archives/dm-devel/2007-August/msg00205.html Look also at this recent thread on RHEL5 mailing-list where you can find also a post from a Red Hat representative: http://www.redhat.com/archives/rhelv5-list/2008-July/msg00267.html Sure, you can just add a new LUN, pvcreate and vgextend but it is not a viable solution because it causes LUN proliferation. Sincerely, I'm still subscribed to this mailing-list only to see if someone solve this SHAME! It's a feature that Linux really needs. Hope someone pick this cry of pain! -- Domenico Viggiani -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
