Yes, I think you are right, after I saw this in dmesg, I noticed with fdisk the block device was updated rbd21: detected capacity change from 5368709120 to 6442450944 Maybe this also works (found a something that refered to a /sys/class, which I don’t have) echo 1 > /sys/devices/rbd/21/refresh (I am trying to online increase the size via kvm, virtio disk in win 2016) -----Original Message----- From: David Turner [mailto:drakonstein@xxxxxxxxx] Sent: maandag 18 september 2017 22:42 To: Marc Roos; ceph-users Subject: Re: Rbd resize, refresh rescan I've never needed to do anything other than extend the partition and/or filesystem when I increased the size of an RBD. Particularly if I didn't partition the RBD I only needed to extend the filesystem. Which method are you mapping/mounting the RBD? Is it through a Hypervisor or just mapped to a server? What are you seeing to indicate that the RBD isn't already reflecting the larger size? Which version of Ceph are you using? On Mon, Sep 18, 2017 at 4:31 PM Marc Roos <M.Roos@xxxxxxxxxxxxxxxxx> wrote: Is there something like this for scsi, to rescan the size of the rbd device and make it available? (while it is being used) echo 1 > /sys/class/scsi_device/2\:0\:0\:0/device/rescan _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com