[ovirt-users] Use of virtual disks

[Langley, Robert]

Right. I know about understand those features. The problem is that whenever I try them, they fail. Constant complaints about the snapshot. Which I am unable to delete.
How else can I work with the disk files?
I need something on a more advanced level.

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________________________________
From: Eyal Shenitzky <eshenitz at redhat.com>
Sent: Wednesday, February 21, 2018 12:01:57 AM
To: Langley, Robert
Cc: users at ovirt.org
Subject: Re: [ovirt-users] Use of virtual disks

Hi Robert,

If I understand correctly you are trying to share disks between two VMs,
In Ovirt you can set a disk as sharable by editing the disk properties.
A shareable disk can be attached to multiple VMs.

If you wish to detach a disk from one VM and attach it to another VM it is simple too,
select the VM that hold the relevant disk and detach the disk from it, you will find the detached disk under the 'disks' tab.
To attach the floating disk to another VM, select the desired VM, go to the disks tab and press 'attach'.
You will see all the floating disks that exist in the data-center.

I hope it helped, please ask if you have more questions.

For more information, you can visit at -
https://www.ovirt.org/documentation/admin-guide/chap-Virtual_Machine_Disks/

On Wed, Feb 21, 2018 at 9:16 AM, Langley, Robert <Robert.Langley at ventura.org<mailto:Robert.Langley at ventura.org>> wrote:
My first experience with this situation using oVirt.
I do come from using VMWare and have been also been using oVirt for several years.
We've also paid for RHEV, but migration is held up at the moment. I am trying to prepare for that.

My problem is how it does not appear to be so simple to utilize the VM disks. In VMWare it is so simple. Snapshot or not, in vSphere I can take the virtual disk file and use it for another VM when needed. It doesn't make sense to me in oVirt. I have another entry here about my  issue that lead to this need, where I am not able to delete snapshot files for those disks I was attempting to live migrate and there was an issue... Now, the empty snapshot files are preventing some VMs from starting. It seems I should be able to take the VM disk files, without the snapshots, and use them with another VM. But, that does not appear possible from what I can tell in oVirt.

I desperately need to get one specific VM going. The other two, no worries. I was able to restore from backup, one of the effected VMs. The third is not important at all and can easily by re-created.
Is anyone experienced with taking VM disks from one and using them (without snapshots) with another VM? I could really use some sort of workaround.

Thanks if anyone can come up with a good answer that would help.
-Robert L.

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--
Regards,
Eyal Shenitzky
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