Thanks this looks like what I'm looking for. I'm still wondering how
to use this. I have LUN just for new hosted storage. Ansible created
storage domain to it correctly but just can't activate it. So is the
idea that I activate this unattached hosted_storage domain and try to
use API to make it master? I attached a screen shot how it looks
currently.



On Tue, Apr 27, 2021 at 10:41 AM Yedidyah Bar David <d...@redhat.com> wrote:
>
> On Tue, Apr 27, 2021 at 10:15 AM Juhani Rautiainen
> <juhani.rautiai...@gmail.com> wrote:
> >
> > To continue. I noticed that another storage domain took the data
> > (master) now. I saw one advice that you can force change by putting
> > the storage domain to maintenance mode. Problem is that there are VM's
> > running on these domains. How is this supposed to work during the
> > restore?
>
> There is a recent change [1] by Shani (Cced) that should allow you
> to choose another storage domain as master. So you can create a new
> (temporary?) SD with the correct compatibility level and then set it
> to master.
>
> [1] https://bugzilla.redhat.com/show_bug.cgi?id=1576923
>
> Best regards,
>
> >
> > Thanks,
> > Juhani
> >
> > On Tue, Apr 27, 2021 at 9:58 AM Juhani Rautiainen
> > <juhani.rautiai...@gmail.com> wrote:
> > >
> > > Hi!
> > >
> > > I started the upgrade from 4.3->4.4. Now I'm stuck as restoring the
> > > backup fails to create the correct storage domain for Hosted Engine.
> > > How can I create one? Error from ansible task is:
> > >
> > > [ ERROR ] ovirtsdk4.Error: Fault reason is "Operation Failed". Fault
> > > detail is "[Domain format is different from master storage domain
> > > format]". HTTP response code is 400.
> > > [ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "msg":
> > > "Fault reason is \"Operation Failed\". Fault detail is \"[Domain
> > > format is different from master storage domain format]\". HTTP
> > > response code is 400."}
> > >
> > > And from UI I can see that what has been created is a data domain. Not
> > > data (master) domain as old one was. Now I'm stuck here. This is a
> > > fibre channel system  where I'm trying to do this if it is relevant.
> > >
> > > What I could find from the logs is this:
> > > 2021-04-27 09:36:06,925+0300 DEBUG
> > > otopi.ovirt_hosted_engine_setup.ansible_utils
> > > ansible_utils._process_output:105 storage_domain_details: {'changed':
> > > False, 'ovirt_storage_domains': [{'href':
> > > '/ovirt-engine/api/storagedomains/dd52022b-7616-47f6-9534-6f1a4084fdf4',
> > > 'comment': '', 'description': '', 'id':
> > > 'dd52022b-7616-47f6-9534-6f1a4084fdf4', 'name': 'hosted_storage',
> > > 'available': 531502202880, 'backup': False, 'block_size': 512,
> > > 'committed': 0, 'critical_space_action_blocker': 5,
> > > 'discard_after_delete': True, 'disk_profiles': [], 'disk_snapshots':
> > > [], 'disks': [], 'external_status': 'ok', 'master': False,
> > > 'permissions': [], 'status': 'unattached', 'storage': {'type': 'fcp',
> > > 'volume_group': {'id': 'HRLDCn-p7X2-5X2O-vm4h-1Wb9-wAMu-WkIwit',
> > > 'logical_units': [{'discard_max_size': 268435456,
> > > 'discard_zeroes_data': False, 'id':
> > > '36000d31005b4f6000000000000000029', 'lun_mapping': 3, 'paths': 0,
> > > 'product_id': 'Compellent Vol', 'serial':
> > > 'SCOMPELNTCompellent_Vol_0005b4f6-00000029', 'size': 536870912000,
> > > 'storage_domain_id': 'dd52022b-7616-47f6-9534-6f1a4084fdf4',
> > > 'vendor_id': 'COMPELNT', 'volume_group_id':
> > > 'HRLDCn-p7X2-5X2O-vm4h-1Wb9-wAMu-WkIwit'}]}}, 'storage_connections':
> > > [], 'storage_format': 'v5', 'supports_discard': True,
> > > 'supports_discard_zeroes_data': False, 'templates': [], 'type':
> > > 'data', 'used': 4294967296, 'vms': [], 'warning_low_space_indicator':
> > > 10, 'wipe_after_delete': False}], 'failed': False}
> > >
> > > 'master': False? I'm not sure if this creation or check. I tried this
> > > opration twice. I removed the new hosted_storage and remove also old
> > > hosted_engine domain on second try to make sure that it doesn't
> > > prevent creation of another master. No luck with that.
> > >
> > > Thanks,
> > > Juhani
> > _______________________________________________
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>
>
>
> --
> Didi
>
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