3:06 p.m.
Hi oVirt List,
I'm trying to change the disk allocation policy of a VM disk and I'm not
able to perform this task via the oVirt front-end.
Is someone able to tell me how I can do that?
Best regards and thank you
Christoph
3:44 p.m.
On Thu, Feb 9, 2017 at 3:06 PM, <ovirt(a)timmi.org> wrote:
Hi oVirt List,
I'm trying to change the disk allocation policy of a VM disk and I'm not
able to perform this task via the oVirt front-end.
Is someone able to tell me how I can do that?
Best regards and thank you
Christoph
I've done it in the past by creating a snapshot of a VM and then cloning
the snapshot and selecting preallocated for the cloned disks (if you have
to do it without powering off the source VM)
Or directly creating a clone of the VM if it is powered off, I think it
creates a full preallocated copy and btw you have no way to tell to clone
as thin if I remember correctly
Gianluca
4:11 p.m.
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Hi Gianluca,
I tried to clone the VM but it does not help. It is still thin allocation.
Best regards
Christoph
Am 09.02.2017 um 15:44 schrieb Gianluca Cecchi:
On Thu, Feb 9, 2017 at 3:06 PM, <ovirt(a)timmi.org
<mailto:ovirt@timmi.org>> wrote:
Hi oVirt List,
I'm trying to change the disk allocation policy of a VM disk and
I'm not able to perform this task via the oVirt front-end.
Is someone able to tell me how I can do that?
Best regards and thank you
Christoph
I've done it in the past by creating a snapshot of a VM and then
cloning the snapshot and selecting preallocated for the cloned disks
(if you have to do it without powering off the source VM)
Or directly creating a clone of the VM if it is powered off, I think
it creates a full preallocated copy and btw you have no way to tell to
clone as thin if I remember correctly
Gianluca
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Hi Gianluca,<br>
<br>
I tried to clone the VM but it does not help. It is still thin
allocation.<br>
<br>
Best regards<br>
Christoph<br>
<br>
<div class="moz-cite-prefix">Am 09.02.2017 um 15:44 schrieb Gianluca
Cecchi:<br>
</div>
<blockquote
cite="mid:CAG2kNCyxkF-LTw+Fm0WPpb-dzMfC4EStVSOEnyUtwKF7gPJP3g@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">On Thu, Feb 9, 2017 at 3:06 PM,
<span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:ovirt@timmi.org"
target="_blank">ovirt(a)timmi.org</a>&gt;</span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hi oVirt
List,<br>
<br>
I'm trying to change the disk allocation policy of a VM
disk and I'm not able to perform this task via the oVirt
front-end.<br>
<br>
Is someone able to tell me how I can do that?<br>
<br>
Best regards and thank you<br>
Christoph<br>
<br>
</blockquote>
<div><br>
</div>
<div>I've done it in the past by creating a snapshot of a VM
and then cloning the snapshot and selecting preallocated
for the cloned disks (if you have to do it without
powering off the source VM)</div>
<div>Or directly creating a clone of the VM if it is powered
off, I think it creates a full preallocated copy and btw
you have no way to tell to clone as thin if I remember
correctly</div>
<div><br>
</div>
<div>Gianluca</div>
</div>
<br>
</div>
</div>
</blockquote>
<br>
</body>
</html>
--------------6286BDE16222262E5DB9D903--
4:46 p.m.
On Thu, Feb 9, 2017 at 4:11 PM, <ovirt(a)timmi.org> wrote:
Hi Gianluca,
I tried to clone the VM but it does not help. It is still thin allocation.
Best regards
Christoph
Hi,
I referred to this information for the clone of VM scenario:
http://lists.ovirt.org/pipermail/users/2016-May/040129.html
that contains:
"
What happens if you clone a source VM which is using "thin"
?
The VM cloned from a thin templated base VM will be created with a full
copy of the disk (as in "Clone" when creating from template)
"
but I have not tried myself recently with 4.0/4.1 versions
Instead I did test some days ago with 4.0.6 this scenario below as I wanted
to convert a source thin provisioned VM to a preallocated template:
VM is powered on
create a snapshot of the VM
select the snapshot line and select clone
in resource allocation section of the new vm screen change allocation
policy for the desired disk/s from thin provision to preallocated
Then you can decommission old VM and use the cloned one
Verified today in 4.1 too.
Or from the snapshot line you can also "make template" if you plan to use
it as a base for more VMs.
But in this case (tested in 4.1) your options are shown in a "Format"
column, not "Allocation Policy" column; and you can choose between QCOW2
(that should be thin) and Raw (that should be preallocated).
See my screenshot:
https://drive.google.com/file/d/0BwoPbcrMv8mvTHIzTU5kdHVJOG8/view?usp=sha...
Probably it should be made consistent and show "Allocation Policy" instead
and related values?
Gianluca
9:12 p.m.
On Thu, Feb 9, 2017 at 4:46 PM, Gianluca Cecchi <gianluca.cecchi(a)gmail.com>
wrote:
On Thu, Feb 9, 2017 at 4:11 PM, <ovirt(a)timmi.org> wrote:
> Hi Gianluca,
>
> I tried to clone the VM but it does not help. It is still thin allocation.
>
> Best regards
> Christoph
>
>
>
Hi,
I referred to this information for the clone of VM scenario:
http://lists.ovirt.org/pipermail/users/2016-May/040129.html
that contains:
"
>What happens if you clone a source VM which is using "thin" ?
The VM cloned from a thin templated base VM will be created with a full
copy of the disk (as in "Clone" when creating from template)
"
but I have not tried myself recently with 4.0/4.1 versions
Instead I did test some days ago with 4.0.6 this scenario below as I
wanted to convert a source thin provisioned VM to a preallocated template:
VM is powered on
create a snapshot of the VM
select the snapshot line and select clone
in resource allocation section of the new vm screen change allocation
policy for the desired disk/s from thin provision to preallocated
Then you can decommission old VM and use the cloned one
Verified today in 4.1 too.
Or from the snapshot line you can also "make template" if you plan to use
it as a base for more VMs.
But in this case (tested in 4.1) your options are shown in a "Format"
column, not "Allocation Policy" column; and you can choose between QCOW2
(that should be thin) and Raw (that should be preallocated).
See my screenshot:
https://drive.google.com/file/d/0BwoPbcrMv8mvTHIzTU5kdHVJOG8/
view?usp=sharing
Probably it should be made consistent and show "Allocation Policy" instead
and related values?
Gianluca
Hi,
I just tested this on 4.1:
- take a VM with a thin provisioned disk
How to see allocation policy?
It seems suboptimal for me: I would expect to see this kind of information
in disks sub pane of the vm.
Instead I have to select snaphsots sub pane, then for example the "Current'
line, and at the right side sub pane in disks tab I see "Allocation Policy"
- thin provision
- make a clone of it in a new VM
In the same sub pane for the new VM I see preallocated.... so it seems to
work as I read
This is on FC-SAN. What kind of storage is yours?
7:58 a.m.
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Hi Gianluca,
thank you for the feedback with the templates.
I will take a look into it.
Best regards
Christoph
Am 09.02.2017 um 21:12 schrieb Gianluca Cecchi:
On Thu, Feb 9, 2017 at 4:46 PM, Gianluca Cecchi
<gianluca.cecchi(a)gmail.com <mailto:gianluca.cecchi@gmail.com>> wrote:
On Thu, Feb 9, 2017 at 4:11 PM, <ovirt(a)timmi.org
<mailto:ovirt@timmi.org>> wrote:
Hi Gianluca,
I tried to clone the VM but it does not help. It is still thin
allocation.
Best regards
Christoph
Hi,
I referred to this information for the clone of VM scenario:
http://lists.ovirt.org/pipermail/users/2016-May/040129.html
<http://lists.ovirt.org/pipermail/users/2016-May/040129.html>
that contains:
"
>What happens if you clone a source VM which is using "thin" ?
The VM cloned from a thin templated base VM will be created with a
full
copy of the disk (as in "Clone" when creating from template)
"
but I have not tried myself recently with 4.0/4.1 versions
Instead I did test some days ago with 4.0.6 this scenario below as
I wanted to convert a source thin provisioned VM to a preallocated
template:
VM is powered on
create a snapshot of the VM
select the snapshot line and select clone
in resource allocation section of the new vm screen change
allocation policy for the desired disk/s from thin provision to
preallocated
Then you can decommission old VM and use the cloned one
Verified today in 4.1 too.
Or from the snapshot line you can also "make template" if you plan
to use it as a base for more VMs.
But in this case (tested in 4.1) your options are shown in a
"Format" column, not "Allocation Policy" column; and you can
choose between QCOW2 (that should be thin) and Raw (that should be
preallocated).
See my screenshot:
https://drive.google.com/file/d/0BwoPbcrMv8mvTHIzTU5kdHVJOG8/view?usp=sha...
<https://drive.google.com/file/d/0BwoPbcrMv8mvTHIzTU5kdHVJOG8/view?usp=sha...
Probably it should be made consistent and show "Allocation Policy"
instead and related values?
Gianluca
Hi,
I just tested this on 4.1:
- take a VM with a thin provisioned disk
How to see allocation policy?
It seems suboptimal for me: I would expect to see this kind of
information in disks sub pane of the vm.
Instead I have to select snaphsots sub pane, then for example the
"Current' line, and at the right side sub pane in disks tab I see
"Allocation Policy" - thin provision
- make a clone of it in a new VM
In the same sub pane for the new VM I see preallocated.... so it seems
to work as I read
This is on FC-SAN. What kind of storage is yours?
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<span class="">Hi Gianluca,<br>
<br>
thank you for the feedback with the templates.<br>
I will take a look into it.<br>
<br>
Best regards<br>
Christoph<br>
</span><br>
<div class="moz-cite-prefix">Am 09.02.2017 um 21:12 schrieb Gianluca
Cecchi:<br>
</div>
<blockquote
cite="mid:CAG2kNCxBkjQkWAicysdKbhmB==Nx2zvWd9a-Q_OpdzFxBvdriQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Feb 9, 2017 at 4:46 PM,
Gianluca Cecchi <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:gianluca.cecchi@gmail.com"
target="_blank">gianluca.cecchi(a)gmail.com</a>&gt;</span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><span class="">
<div class="gmail_extra">
<div class="gmail_quote">On Thu, Feb 9, 2017 at 4:11
PM, <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:ovirt@timmi.org"
target="_blank">ovirt(a)timmi.org</a>&gt;</span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px
0px 0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF"> Hi Gianluca,<br>
<br>
I tried to clone the VM but it does not help.
It is still thin allocation.<br>
<br>
Best regards<br>
Christoph
<div>
<div
class="m_6832984903494034171gmail-h5"><br>
<br>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</span>
<div class="gmail_extra">Hi,</div>
<div class="gmail_extra">I referred to this information
for the clone of VM scenario:</div>
<div class="gmail_extra"><a
moz-do-not-send="true"
href="http://lists.ovirt.org/pipermail/users/2016-May/040129.html"
target="_blank">http://lists.ovirt.org/<wbr>pipermail/...
</div>
<div class="gmail_extra">that contains:</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">"</div>
<div class="gmail_extra">
<div class="gmail_extra">>What happens if you
clone
a source VM which is using "thin" ?</div>
<div class="gmail_extra">The VM cloned from a thin
templated base VM will be created with a full</div>
<div class="gmail_extra">copy of the disk (as in
"Clone" when creating from template)</div>
<div>"<br>
</div>
<div>but I have not tried myself recently with 4.0/4.1
versions<br>
</div>
<div><br>
</div>
<div>Instead I did test some days ago with 4.0.6 this
scenario below as I wanted to convert a source thin
provisioned VM to a preallocated template:</div>
<div>VM is powered on</div>
<div>create a snapshot of the VM</div>
<div>select the snapshot line and select clone</div>
<div>in resource allocation section of the new vm
screen change allocation policy for the desired
disk/s from thin provision to preallocated</div>
<div>Then you can decommission old VM and use the
cloned one</div>
<div>Verified today in 4.1 too.<br>
</div>
<div><br>
</div>
<div>Or from the snapshot line you can also "make
template" if you plan to use it as a base for more
VMs.</div>
<div>But in this case (tested in 4.1) your options are
shown in a "Format" column, not "Allocation
Policy"
column; and you can choose between QCOW2 (that
should be thin) and Raw (that should be
preallocated).</div>
<div>See my screenshot:</div>
<div><a moz-do-not-send="true"
href="https://drive.google.com/file/d/0BwoPbcrMv8mvTHIzTU5kdHVJOG8/v...
target="_blank">https://drive.google.com/file/<wbr>d/&...
</div>
<div>Probably it should be made consistent and show
"Allocation Policy" instead and related values?</div>
<span class="HOEnZb"><font
color="#888888">
<div><br>
</div>
<div>Gianluca</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
</font></span></div>
</div>
</blockquote>
<div><br>
</div>
<div>Hi,<br>
</div>
<div>I just tested this on 4.1:<br>
</div>
<div>- take a VM with a thin provisioned disk<br>
</div>
<div>How to see allocation policy?<br>
</div>
<div>It seems suboptimal for me: I would expect to see this
kind of information in disks sub pane of the vm.<br>
</div>
<div>Instead I have to select snaphsots sub pane, then for
example the "Current' line, and at the right side sub pane
in disks tab I see "Allocation Policy" - thin provision<br>
<br>
</div>
<div>- make a clone of it in a new VM<br>
</div>
<div>In the same sub pane for the new VM I see
preallocated.... so it seems to work as I read<br>
</div>
<div>This is on FC-SAN. What kind of storage is yours?<br>
<br>
</div>
</div>
<br>
</div>
</div>
</blockquote>
<br>
</body>
</html>
--------------C036F36AD63F1ED230FAAC1E--
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days inactive
2636
days old
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participants (2)
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Gianluca Cecchi -
ovirt＠timmi.org