Description of problem:
I and Brett(bthurber) were discussing the change in the UI removing the source and target datastore/domain sizes from the infra mappings due to the inaccurate info being returned by the API.
I relied on it in the past to select the source and target for VM migration. In the past it would block if the target indicated a smaller free space than the source even though the total size of the VMs selected may be less.
This lead to troubleshooting a failed VM migration which caused by lack of space on the target storage, Brett found this out through the virt-v2v log for the VM.
Is there a way we could display the failure cause in the UI so the consumer doesn't have to parse a full, verbose log file? The current pop-up comes to mind. Something like an informational icon next to the log file with the cause of failure listed in a pop-up.
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