Thanks, that's what I thought.. Best, Andrija
On 28 October 2013 18:03, Geoff Higginbottom < [email protected]> wrote: > Hi Andrija, > > The use of Linked Clones is the default behaviour. It allows for quick > deployment of VMs and very efficient use of storage. > > If you were using VMware you can now change the behaviour to not use > Linked Clones. > > Regards > > Geoff Higginbottom > > D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581 > > [email protected] > > -----Original Message----- > From: Andrija Panic [mailto:[email protected]] > Sent: 28 October 2013 16:01 > To: [email protected] > Subject: CS 4.2 make backing file when deployed from snapshot > > Hi, > > one question - what I have noticed, need confirmation please. > > I have made one volume templates (50GB) (win2008, sysreped, etc). > > When I deployed 1 VM from that template, it created 1 clone of the > original template volume of 50GB, and it is declared as backing file > > When i deployed another VM from that template, I can see that this VM now > have "differential" disk, that is a disk that has it's backing disk. > > [root@cs2 ~]# qemu-img info > /var/lib/libvirt/images/87924eb1-1e46-4e93-8735-7cff0daefd40 > image: /var/lib/libvirt/images/87924eb1-1e46-4e93-8735-7cff0daefd40 > file format: qcow2 > virtual size: 50G (53687091200 bytes) > *disk size: 177M* > cluster_size: 65536 > backing file: > /var/lib/libvirt/images/*65e6c5a8-0c60-41e9-ba2f-9f1c82282d1a* > > [root@cs2 ~]# qemu-img info /var/lib/libvirt/images/* > 65e6c5a8-0c60-41e9-ba2f-9f1c82282d1a* > image: /var/lib/libvirt/images/65e6c5a8-0c60-41e9-ba2f-9f1c82282d1a > file format: qcow2 > virtual size: 50G (53687091200 bytes) > disk size: 12G > cluster_size: 65536 > > Is this the default behaviour when deploying new VM from template - first > create clone of the original template volume in full size (50Gb), and then > create differentials disks for each VM, refering to this one main > volume(backing disk) ? > > Thanks, > > > -- > > Andrija Panić > This email and any attachments to it may be confidential and are intended > solely for the use of the individual to whom it is addressed. Any views or > opinions expressed are solely those of the author and do not necessarily > represent those of Shape Blue Ltd or related companies. If you are not the > intended recipient of this email, you must neither take any action based > upon its contents, nor copy or show it to anyone. Please contact the sender > if you believe you have received this email in error. Shape Blue Ltd is a > company incorporated in England & Wales. ShapeBlue Services India LLP is a > company incorporated in India and is operated under license from Shape Blue > Ltd. Shape Blue Brasil Consultoria Ltda is a company incorporated in Brasil > and is operated under license from Shape Blue Ltd. ShapeBlue is a > registered trademark. > -- Andrija Panić
