[ovirt-users] VM Deployment By Template
Itamar Heim
iheim at redhat.com
Wed Aug 27 10:11:03 UTC 2014
On 08/27/2014 12:47 PM, Punit Dambiwal wrote:
> Hi Itamar,
>
> To edit the disk size are you referring this "Another way i got is
> create the VM with 1GB virtual template and expand the disk size after
> deployment...but the problem here is disk will expand...but it will not
> done any changes in the existing partition table..that means after
> expand disk you need to manual login in to server and make the changes
> with the help of fdisk and lvm commands..."
>
> Or it's different then the upper one...please let me know how to perform
> this...if any screen shot you can provide for better understanding..
http://www.ovirt.org/Features/Online_Virtual_Drive_Resize
adding derez for follow up questions
>
> Thanks,
> Punit
>
>
> On Wed, Aug 27, 2014 at 5:15 PM, Itamar Heim <iheim at redhat.com
> <mailto:iheim at redhat.com>> wrote:
>
> On 08/27/2014 12:08 PM, Punit Dambiwal wrote:
>
> 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 ...
>
>
> iirc, you just need to edit the disk size when vm is down or up (for
> up, only for specific disk interfaces, virtio-blk, not ide, iirc)
>
> Thanks,
> Punit
>
>
> On Wed, Aug 27, 2014 at 4:37 PM, Itamar Heim <iheim at redhat.com
> <mailto:iheim at redhat.com>
> <mailto:iheim at redhat.com <mailto: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>
> <mailto:michal.skrivanek at __redhat.com
> <mailto:michal.skrivanek at redhat.com>>
> <mailto:michal.skrivanek@
> <mailto:michal.skrivanek@>__red__hat.com <http://redhat.com>
>
> <mailto: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>
> <mailto:hypunit at gmail.com <mailto:hypunit at gmail.com>>
> <mailto:hypunit at gmail.com
> <mailto:hypunit at gmail.com> <mailto: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>
> <mailto:michal.skrivanek at __redhat.com
> <mailto:michal.skrivanek at redhat.com>>
> <mailto:michal.skrivanek@
> <mailto:michal.skrivanek@>__red__hat.com <http://redhat.com>
>
> <mailto: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>
> <mailto:hypunit at gmail.com <mailto:hypunit at gmail.com>>
> <mailto:hypunit at gmail.com
> <mailto:hypunit at gmail.com> <mailto: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>
> <mailto:hypunit at gmail.com <mailto:hypunit at gmail.com>>
> <mailto:hypunit at gmail.com <mailto:hypunit at gmail.com>
> <mailto: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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