021 at 7:19 AM Tommy Sway wrote:
>
> Another option with (still tech preview) is Managed Block Storage (Cinder
> based storage).
>
> It still tech preview in 4.4 ??
>
>
>
>
>
>
>
> -Original Message-
> From: users-boun...@ovirt.org On Behalf Of Nir
Bednar
Subject: [ovirt-users] Re: Sparse VMs from Templates - Storage issues
On Tue, Aug 10, 2021 at 4:24 PM Shantur Rathore
wrote:
>
> Hi all,
>
> I have a setup as detailed below
>
> - iSCSI Storage Domain
> - Template with Thin QCOW2 disk
> - Multiple VMs from Templ
On Wednesday, 22 September 2021 18:09:28 CEST Shantur Rathore wrote:
> I have actually tried many types of storage now and all have this issue.
This is weird. Could you please use file-based storage (e.g. NFS) and post here
whole exceptions from vdsm log (/var/log/vdsm/vdsm.log) and qemu log
I have actually tried many types of storage now and all have this issue.
I am not of ideas what to do
On Wed, Sep 22, 2021 at 4:39 PM Shantur Rathore
wrote:
>
> Hi Nir,
>
> Just to report.
> As suggested, I created a Posix compliant storage domain with CephFS
> and copied my templates to
Hi Nir,
Just to report.
As suggested, I created a Posix compliant storage domain with CephFS
and copied my templates to CephFS.
Now I created VMs from CephFS templates and the storage error happens again.
As I understand, the storage growth issue is only on iSCSI.
Am I doing something wrong?
On Wed, Aug 11, 2021 at 4:24 PM Arik Hadas wrote:
>
>
>
> On Wed, Aug 11, 2021 at 2:56 PM Benny Zlotnik wrote:
>>
>> > If your vm is temporary and you like to drop the data written while
>> > the vm is running, you
>> > could use a temporary disk based on the template. This is called a
>> >
On Wed, Aug 11, 2021 at 3:13 PM Shantur Rathore
wrote:
>
>
>> Yes, on file based storage a snapshot is a file, and it grows as
>> needed. On block based
>> storage, a snapshot is a logical volume, and oVirt needs to extend it
>> when needed.
>
>
> Forgive my ignorance, coming from vSphere
On Wed, Aug 11, 2021 at 2:56 PM Benny Zlotnik wrote:
> > If your vm is temporary and you like to drop the data written while
> > the vm is running, you
> > could use a temporary disk based on the template. This is called a
> > "transient disk" in vdsm.
> >
> > Arik, maybe you remember how
> Yes, on file based storage a snapshot is a file, and it grows as
> needed. On block based
> storage, a snapshot is a logical volume, and oVirt needs to extend it
> when needed.
Forgive my ignorance, coming from vSphere background where a filesystem was
created on iSCSI LUN.
I take that this
> If your vm is temporary and you like to drop the data written while
> the vm is running, you
> could use a temporary disk based on the template. This is called a
> "transient disk" in vdsm.
>
> Arik, maybe you remember how transient disks are used in engine?
> Do we have an API to run a VM once,
On Wed, Aug 11, 2021 at 12:43 AM Shantur Rathore
wrote:
>
> Thanks for the detailed response Nir.
>
> In my use case, we keep creating VMs from templates and deleting them so we
> need the VMs to be created quickly and cloning it will use a lot of time and
> storage.
That's a good reason to
Thanks for the detailed response Nir.
In my use case, we keep creating VMs from templates and deleting them so
we need the VMs to be created quickly and cloning it will use a lot of time
and storage.
I will try to add the config and try again tomorrow. Also I like the
Managed Block storage idea,
On Tue, Aug 10, 2021 at 4:24 PM Shantur Rathore
wrote:
>
> Hi all,
>
> I have a setup as detailed below
>
> - iSCSI Storage Domain
> - Template with Thin QCOW2 disk
> - Multiple VMs from Template with Thin disk
Note that a single template disk used by many vms can become a performance
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