[one-users] Working with Ceph datastore - How to tell do linked snapshot for new VM?

[Igor Laskovy]

Thanks for reply!

>The allocation time will depend on how fast your ceph network is.

Actually, I asking about eliminate copy operation. In Ceph you can start
images form snapshots and if you boot 100 VMs from one Image you
will basically using only one large disk and 100 snapshots with data that
will changed. This behaviour can be expected in opennebula somehow?


On Tue, Sep 3, 2013 at 1:09 PM, Kenneth <kenneth at apolloglobal.net> wrote:

> **
>
> Are you cloning/uploading an existing image to open nebula?.
>
> I'm using ceph datastore too. My kvm template image is a 21GB qcow2 (and
> raw) image but only 1.5GB of space is taken up. (that is before uploading
> to nebula).
>
> Images that will be stored in ceph will be converted to RBD and when
> nebula "sees" that a this disk is 21GB, it will be allocated. The
> allocation time will depend on how fast your ceph network is.
>
> And have you tried creating an empty datablock? Create an empty datablock
> in the ceph datastore and then install linux on that datablock, the
> allocation of an empty datablock is faster, though you'll need to install
> the OS afterwards.
>
>
>
> On 09/03/2013 05:57 PM, Igor Laskovy wrote:
>
> Anybody? ;)
>
>
> On Sat, Aug 31, 2013 at 5:27 PM, Igor Laskovy <igor.laskovy at gmail.com>wrote:
>
>> Hello all!
>>
>> When I create VMs from image which located on ceph datastore, OpenNebula
>> do full clone of that image - it takes precious time. Is it possible to
>> tell do something like just quick snapshot and than working with it with VM?
>>
>> --
>> Igor Laskovy
>> facebook.com/igor.laskovy
>> studiogrizzly.com
>>
>
>
>
> --
> Igor Laskovy
> facebook.com/igor.laskovy
> studiogrizzly.com
>
> _______________________________________________
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>
>  --
> Thanks,
> Kenneth
>
>
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>


-- 
Igor Laskovy
facebook.com/igor.laskovy
studiogrizzly.com
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