wornet-mwo opened a new issue, #9176:
URL: https://github.com/apache/cloudstack/issues/9176
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##### ISSUE TYPE
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* Bug Report
##### COMPONENT NAME
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STORAGE
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##### CLOUDSTACK VERSION
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branch.
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4.19.0.1
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##### CONFIGURATION
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advanced networking, etc. N/A otherwise
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N/A
##### OS / ENVIRONMENT
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* KVM/libvirt as Virtualization is used
* linstor as primary storage is required
##### SUMMARY
<!-- Explain the problem/feature briefly -->
Volumes attached to instances created in a primary storage backed by linstor
are set to format `QCOW2`. That leads to unmigratable Instances.
##### STEPS TO REPRODUCE
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For bugs, show exactly how to reproduce the problem, using a minimal
test-case. Use Screenshots if accurate.
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* install a linstor storage as primary storage
* create instance using a storage offering which guarantees usage of linstor
(with tags)
* find volume in database
* column `format` is set to `QCOW2` instead of `RAW` (drbd devices are raw
by definition)
* (optional: try to migrate the instance to another storage e.g. an nfs ->
fails because of wrong qemu-img parameters)
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##### EXPECTED RESULTS
<!-- What did you expect to happen when running the steps above? -->
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The correct format is used, when creating an instance.
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##### ACTUAL RESULTS
<!-- What actually happened? -->
The migration of an instance from a linstor to nfs storage failed. The
failed command pointed me to the database. Migrating an instance to the linstor
storage works great and does not cause the issue, only creating an instance is
affected.
<!-- Paste verbatim command output between quotes below -->
~~~
root@rz0-vh01:~# zgrep qemu-img
/var/log/cloudstack/agent/agent.log.2024-06-04.gz
2024-06-04 10:04:56,779 WARN [utils.script.Script]
(agentRequest-Handler-4:null) (logid:0af75212) Execution of process [28987] for
command [qemu-img convert -O qcow2 -U --image-opts
driver=qcow2,file.filename=/dev/drbd1001
/mnt/f8a61f1d-8644-31f2-a519-83ac3f94c267/eaf6e6cb-50c9-4cb0-9368-e757fa488d79.qcow2
] failed.
2024-06-04 10:04:56,779 WARN [utils.script.Script]
(agentRequest-Handler-4:null) (logid:0af75212) Process [28987] for command
[qemu-img convert -O qcow2 -U --image-opts
driver=qcow2,file.filename=/dev/drbd1001
/mnt/f8a61f1d-8644-31f2-a519-83ac3f94c267/eaf6e6cb-50c9-4cb0-9368-e757fa488d79.qcow2
] encountered the error: [qemu-img: Could not open
'driver=qcow2,file.filename=/dev/drbd1001': Image is not in qcow2 format].
2024-06-04 10:04:56,780 ERROR [kvm.storage.LibvirtStorageAdaptor]
(agentRequest-Handler-4:null) (logid:0af75212) Failed to convert /dev/drbd1001
to
/mnt/f8a61f1d-8644-31f2-a519-83ac3f94c267/eaf6e6cb-50c9-4cb0-9368-e757fa488d79.qcow2
the error was: qemu-img: Could not open
'driver=qcow2,file.filename=/dev/drbd1001': Image is not in qcow2 format
~~~
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