9:24 a.m.
Le 15/12/2022 à 12:20, Arik Hadas a écrit :
On Wed, Dec 14, 2022 at 5:54 PM Nathanaël Blanchet <blanchet(a)abes.fr>
wrote:
Le 14/12/2022 à 16:42, Arik Hadas a écrit :
>
>
> On Wed, Dec 14, 2022 at 5:26 PM Nathanaël Blanchet via Users
> <users(a)ovirt.org> wrote:
>
> Hello,
>
> I am used to create new vm with ovirt_vm module.
>
> Now, I want that the disk of each new created vm to be with
> the incremental statement.
>
> I tried so:
>
> disks:
> - id: "{{result.disk.id <http://result.disk.id>}}"
> bootable: True
> interface: virtio_scsi
> backup: incremental
>
> but it seems that the backup item is not implemented.
>
>
> How to attach a disk with the incremental statement?
>
>
> Unlike bootable, disk interface and such settings that are per
> relation between a disk and a vm, the 'backup' (method) setting
> is a property of the disk itself. If the disk was created with
> incremental backup enabled, it would remain with incremental
> backup enabled when attached to a vm
The exact workflow is:
* The disk is created with incremental backup enabled
* The disk is attached to a vm(incremental backup is ok at this
step)
* the vm is exported as a template
* *The disk of the new vm created from the template doesn't have
the incremental backup enabled!*
Sounds like the imported disk of the template is not set with
incremental backup, what version of ovirt do you use?
4.5.3.2
As part of the fix for
https://bugzilla.redhat.com/show_bug.cgi?id=2081556, which was merged
to 4.5.1, we started writing the incremental-backup property to OVAs
(I assume you refer to export-to-OVA since you wrote that you export a
VM as a template)
I don't export vm as ova, I make a template from a vm or a
snapshot.
- if you use an older version (than 4.5.1), this could explain it.
Otherwise, please provide the output of:
select * from base_disks where disk_id in (select device_id from
vm_device where vm_id in (select vm_guid from vm_static where
vm_name='<template-name>'));
engine=# select * from base_disks where
disk_id in (select device_id
from vm_device where vm_id in (select vm_guid from vm_static where
vm_name='alma8.x'));
disk_id | wipe_after_delete |
propagate_errors | disk_alias | disk_description | shareable | sgio |
disk_storage_type | cinder_volume_type | disk_content_type |
backup | backup_mode
--------------------------------------+-------------------+------------------+------------+------------------+-----------+------+-------------------+--------------------+-------------------+
--------+-------------
d55e6738-67d6-441f-a38f-86fc14f248cf | f |
Off | Alma_8_8.7 | 8.7 | f |
| 0 | | 0 |
None |
(1 row)
You are right, making a template from a vm doesn't effectly enable the
incremental backup on the template disk, even if it is initially enabled
on the vm disk. It seems to be a bug.
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