If a virtual machine fails to deploy
Review the error message on the VM right pane. One of the possible root causes is that compute nodes lack free RAM or CPU resources to host the VM.
If a virtual machine is stuck in a failed or transitional state
Reset the VM to its last stable state: active, shut down or shelved:
- Click the stuck VM.
- On the VM right pane, click Reset state.
If a virtual machine fails to boot
Examine the VM console log by clicking Download console log on the VM right pane. The log will contain log messages only if logging is enabled inside the VM (refer to Enabling logging for virtual machines).