[ovirt-users] VM Deployment By Template

Wed Aug 27 09:08:52 UTC 2014

Hi Itamar,

Thanks for the update....Yes.. i want to create different size VM with the
same OS template...

------------
3. we support "disk resize" since 3.4 (iirc), which you can do post VM
provisioning.

considering #3, then #1 should be easy to support as well these days.
please open an RFE.
------------

Could you please more elaborate point number 3...how to use it..i will go
with this one ...

Thanks,
Punit

On Wed, Aug 27, 2014 at 4:37 PM, Itamar Heim <iheim at redhat.com> wrote:

> On 08/27/2014 04:18 AM, Punit Dambiwal wrote:
>
>> Hi Michal,
>>
>> I want to deploy the VM with the template but the problem is in ovirt
>> when you deploy the VM by template it copy the whole image(even thin or
>> thick disk)...like if i have 40GB virtual size (actual size 1GB)
>> disk....it will copy the whole 40GB to provision the virtual
>> machine....so if i want to deploy 10 VM simultaneous then it will copy
>> 4TB data and take long time to provision....
>>
>> I want the way i can make the template with small size....and once i
>> choose to create the virtual machine with 40GB...the VM deploy with the
>> small template on the 40GB disk... is it possible with ovirt.. ??
>>
>
> so you want to provision a VM with a different disk size than template.
> good point. some thoughts:
> 1. for thinly provisioned (qcow2) - its COW, hence the same size.
> 2. for clone - actually, no reason shouldn't be supported easily.
> 3. we support "disk resize" since 3.4 (iirc), which you can do post VM
> provisioning.
>
> considering #3, then #1 should be easy to support as well these days.
> please open an RFE.
>
>
>> Thanks,
>> Punit
>>
>>
>> On Tue, Aug 26, 2014 at 9:01 PM, Michal Skrivanek
>> <michal.skrivanek at redhat.com <mailto:michal.skrivanek at redhat.com>> wrote:
>>
>>
>>     On Aug 26, 2014, at 12:01 , Punit Dambiwal <hypunit at gmail.com
>>     <mailto:hypunit at gmail.com>> wrote:
>>
>>      > Hi Michal,
>>      >
>>      > 2. I find disk size can not modify at the time of VM
>>     provisioning,is there any way to modify the VM disk size ??
>>      >
>>      > well, not really, AFAIK.
>>      > create another disk, move your data, remove the original Or
>>     create a bigger thin provisioned disk at the beginning...
>>      >
>>      > I didn't understand the mean...i can create the another
>>     disk...it's ok...but how to move the data from the existing disk to
>>     new disk at the time of the VM deployment... ?? is there any way to
>>     move the data.. ??
>>     Hi,
>>
>>     You would have to do that inside the guest…the same way as you would
>>     do it on real hardware…mount both disks, move the relevant data
>>     not trivial and not automated
>>
>>      >
>>      > Another question is there any way to mount the img like i will
>>     create the VM with blank template with my preferred disk size and
>>     leter on install the OS through any OS template ??? i know i can
>>     install the OS through CD-ISO but i don't want the manual
>> installation…
>>
>>     so you want to have a preinstalled OS…so how did you want to use it?
>>     I probably don't understand what are you trying to achieve.
>>     Anything else than having a Template with OS and you deploy VMs from
>>     that….you need to change disk sizes for each such VM? Could it be
>>     done by adding an additional disk?
>>
>>     Thanks,
>>     michal
>>
>>      >
>>      > Thanks,
>>      > Punit
>>      >
>>      >
>>      > On Tue, Aug 26, 2014 at 5:51 PM, Michal Skrivanek
>>     <michal.skrivanek at redhat.com <mailto:michal.skrivanek at redhat.com>>
>>
>>     wrote:
>>      >
>>      > On Aug 26, 2014, at 05:26 , Punit Dambiwal <hypunit at gmail.com
>>     <mailto:hypunit at gmail.com>> wrote:
>>      >
>>      > > Hi All,
>>      > >
>>      > > I have some questions regarding the VM deployment through OS
>>     template...
>>      > >
>>      > > 1. I have imported centos template from openstack glance (the
>>     actual size of the template is 16GB but used is 1GB)...now my
>>     question is if i deploy the new VM with this template,the process
>>     will copy the whole 16GB or just 1 GB to create the new VM ??
>>      >
>>      > if you deploy with thin provisioned disks it should be 1GB
>>      >
>>      > >
>>      > > 2. I find disk size can not modify at the time of VM
>>     provisioning,is there any way to modify the VM disk size ??
>>      >
>>      > well, not really, AFAIK.
>>      > create another disk, move your data, remove the original.
>>      > Or create a bigger thin provisioned disk at the beginning
>>      >
>>      > >
>>      > > Thanks,
>>      > > Punit
>>      > >
>>      > >
>>      > > On Mon, Aug 25, 2014 at 5:42 PM, Punit Dambiwal
>>     <hypunit at gmail.com <mailto:hypunit at gmail.com>> wrote:
>>      > > Hi All,
>>      > >
>>      > > I have some questions regarding the VM deployment through OS
>>     template...
>>      > >
>>      > > 1. I have imported centos template from openstack glance (the
>>     actual size of the template is 16GB but used is 1GB)...now my
>>     question is if i deploy the new VM with this template,the process
>>     will copy the whole 16GB or just 1 GB to create the new VM ??
>>      > >
>>      > > 2. I find disk size can not modify at the time of VM
>>     provisioning,is there any way to modify the VM disk size ??
>>      > >
>>      > > Thanks,
>>      > > Punit
>>      > >
>>      >
>>      >
>>
>>
>>
>
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