henrys7
commented
1 year ago - Problem
- Logical name of disk isn't displayed after detaching and attaching that to VM.
- I guess it occurs when disk operations (detach & attach) happen within the DiskMapping notification cycle of the guest agent. As a result, the DiskMapping hash remains the same and the logical name is not updated.
- ref link: https://github.com/oVirt/vdsm/blob/ovirt-4.3/lib/vdsm/virt/vm.py#L2020
- DiskMapping hash is based on disk serial and disk name in guest
- Version Information
- Guest Information
- OS: RHEL 7.6
- Guest Agent:
- ovirt-guest-agent-common-1.0.16-1.el7ev
- qemu-guest-agent-2.12.0
- but, it appears to be reproducible regardless of the guest OS and agent.
- VDSM
- vdsm-4.30.51-1.el7ev
- but, it's likely that latest version has the same issue as related logic still remains
- How reproducible:80%
- Steps to Reproduce:
- 1.hot-unplug a disk of a VM
- 2.hot-plug the same disk to the VM again "quickly" (within approximately 5 seconds)
- Actual results:
- On admin portal, logical name of the disk isn't displayed
- Also, DB data related to it is null (logical_name column in vm_device table)
- Expected results:
- the logical name of the disk is displayed
- or any idea like restarting some daemons to display name without affecting the VM?