On Fri, Dec 16, 2022 at 10:47 AM Nathanaël Blanchet <blanc...@abes.fr>
wrote:
>
> Le 15/12/2022 à 19:24, Arik Hadas a écrit :
>
>
>
> On Thu, Dec 15, 2022 at 4:24 PM Nathanaël Blanchet <blanc...@abes.fr>
> wrote:
>
>>
>> Le 15/12/2022 à 12:20, Arik Hadas a écrit :
>>
>>
>>
>>
>> On Wed, Dec 14, 2022 at 5:54 PM Nathanaël Blanchet <blanc...@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@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}}"
>>>> 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
>> incremenat tal backup on the template disk, even if it is initially enabled
>> on the vm disk. It seems to be a bug.
>>
>
> Yep, I filed an issue for this:
> https://github.com/oVirt/ovirt-engine/issues/779, and posted a fix
>
> Thank you for the issue, now I there is a new one:
>
> I was able to update the incremental backup on the template with API, but
> now if I create a vm from this template, the incremental backup of this new
> vm is not either enabled...
>
This takes me back to a different thread we had somewhere about this - the
'incremental backup' property is not like other properties that you can
change by updating a template/vm/disk. You should rather call 'convert' [1]
[1] https://gerrit.ovirt.org/c/ovirt-engine-api-model/+/116966
>
>
>>
>>
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>>>
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