Failed To Create ISCSI Target For Cinder Volume

Problem

• The Hypervisor requesting to attach volume fails to create ISCSI target to the Cinder host

• The below messages could be seen in the cinder logs for the mentioned volume on the host where the volume resides

Bash

less /var/log/pf9/cindervolume-base.log | grep -i 55dbd6ac-1842-4c0a-bcde-d07e2c5e39fd
2022-05-04 09:24:25.996 INFO cinder.volume.flows.manager.create_volume [req-1d2f6876-f8a2-45e8-9b0b-d47aab8764b0 None devops-sla] Volume 55dbd6ac-1842-4c0a-bcde-d07e2c5e39fd: being created as raw with specification: {'status': 'creating', 'volume_name': 'volume-55dbd6ac-1842-4c0a-bcde-d07e2c5e39fd', 'volume_size': 1}
2022-05-04 09:24:28.520 INFO cinder.volume.flows.manager.create_volume [req-1d2f6876-f8a2-45e8-9b0b-d47aab8764b0 None devops-sla] Volume volume-55dbd6ac-1842-4c0a-bcde-d07e2c5e39fd (55dbd6ac-1842-4c0a-bcde-d07e2c5e39fd): created successfully
2022-05-04 09:25:45.173 WARNING cinder.volume.targets.tgt [req-1f13bf94-8a3b-417f-ab36-b7b12bdb00e2 None devops-sla] Failed to create iscsi target for Volume ID: volume-55dbd6ac-1842-4c0a-bcde-d07e2c5e39fd. It could be caused by problem with concurrency. Also please ensure your tgtd config file contains 'include /opt/pf9/pf9-cindervolume-base/state/volumes/*'
2022-05-04 09:25:47.251 WARNING cinder.volume.targets.tgt [req-1f13bf94-8a3b-417f-ab36-b7b12bdb00e2 None devops-sla] Failed to create iscsi target for Volume ID: volume-55dbd6ac-1842-4c0a-bcde-d07e2c5e39fd. It could be caused by problem with concurrency. Also please ensure your tgtd config file contains 'include /opt/pf9/pf9-cindervolume-base/state/volumes/*'

Environment

• Platform9 Managed OpenStack

Cause

<The reason for the problem, if known.>

Resolution

Bash

cat /opt/pf9/etc/pf9-cindervolume-base/conf.d/cinder_overrides.conf files.

[lvm-backend]
target_protocol = iscsi
lvm_type = default
volume_backend_name = <Node>

Additional Information

< Links to supporting documentation, caveats, or other helpful background information that’s not strictly a problem, environment, cause, or resolution. >