From: "Martijn Grendelman" <martijn.grendelman(a)isaac.nl&gt; To: users(a)ovirt.org Sent: Tuesday, October 1, 2013 5:01:39 PM Subject: [Users] Resizing disks destroys contents Hi, I just tried out another feature of oVirt and again, I am shocked by the results. I did the following: - create new VM based on an earlier created template, with 20 GB disk - Run the VM -> boots fine - Shut down the VM - Via Disks -> Edit -> Extend size by(GB) add 20 GB to the disk - Run the VM Result: no bootable device. Linux installation gone. Just to be sure, I booted the VM with a gparted live iso, and gparted reports the entire 40 GB as unallocated space. Where's my data? What's wrong with my oVirt installation? What am I doing wrong? Regards, Martijn. _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

I have same problem too.   I have one node as ovirt engine and as hypervisor too. I successfully upgrade our engine from 3.1 to 3.2 and then from 3.2 to 3.3 and everything is ok. then i upgrade our cluster version to 3.3 and then our datacenter to 3.3. I increase 1GB on virtual machine with 20GB thin disk  and I receive success message on event and our disk increase to 21GB but after host reboot, i saw message that contains no bootable disk is available!!!  then i try to install new os on that disk (Centos 6.4 minimal) and anaconda show the error on screen : No usable disks have found. I think disk corrupt after resizing. it was test VM but it's very if occur for real and functional VMs.

We should update both of vdsm and ovirt-engine or vdsm is enough? I check ovirt el repo and it does not have new version for vdsm. On 10/12/2013 02:11 AM, Dan Kenigsberg wrote:

On Sat, Oct 12, 2013 at 12:27:02AM +0330, Mohsen Saeedi wrote: I have same problem too.   I have one node as ovirt engine and as hypervisor too. I successfully upgrade our engine from 3.1 to 3.2 and then from 3.2 to 3.3 and everything is ok. then i upgrade our cluster version to 3.3 and then our datacenter to 3.3. I increase 1GB on virtual machine with 20GB thin disk  and I receive success message on event and our disk increase to 21GB but after host reboot, i saw message that contains no bootable disk is available!!!  then i try to install new os on that disk (Centos 6.4 minimal) and anaconda show the error on screen : No usable disks have found. I think disk corrupt after resizing. it was test VM but it's very if occur for real and functional VMs. Yes, this is indeed a bad bad bug. It was inadvertantly fixed on the master branch a while ago. Yesterday, we've backported the fix to 3.3.0.1 http://lists.ovirt.org/pipermail/users/2013-October/017018.html Please avoid trying ovirt-3.3.0's new disk resize feature on file-based storage, unless you upgrade to vdsm vdsm-4.12.1-4 first. Dan.