[ovirt-users] Re: Difference between Template and Clone in oVirt
19.11.2018 14:36, Hari Prasanth Loganathan пишет:
Hi Team,
Could someone let me know the difference between creating VM from clone
and template in oVirt?
It really looks the same.
I think you can create a "clone based on template" (independent from
template) or "thin machine" (dependent from template. if template breaks
machine also breaks) ?
How to "creating VM from clone" ?
I'm also new to ovirt and investigating it.
By the way, ovirt/redhat docs says:
-------------------
When you create a template, you specify the format of the disk to be
raw or QCOW2:
QCOW2 disks are thin provisioned.
Raw disks on file storage are thin provisioned.
Raw disks on block storage are preallocated.
-------------------
I have a hyperconverged install with glusterfs file storage, and when I
create template, it is have a "allocation policy = thin provision"
automatically.
But when I create new machine without template, I can create new disk
image and select allocation policy - thin or preallocated.
Are there a way to create preallocated VMs from template and file
storage? I think they will be more reliable/safe and error-prone?
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