Troubleshooting Steps for Resolving Qualys Scanner Startup Issues
When the Qualys Scanner Virtual machine fails to start, check the event logs to identify the issue. We recommend checking the Hyper-V-VMMS Admin log under Applications and Services in Microsoft Windows. In most instances, the logs indicate the specific reason for the error. In this case, the virtual machine fails to start due to insufficient resources to complete the operation error, displayed in the following screenshots.
- When Qualys Scanner VM is not started.
- Check Admin log in Event Viewer for Errors.
- Check the available memory and logical processors on the host.
As mentioned in the Useful Command section, the systeminfo command provides details related to utilized memory on the Host, Get-WmiObject Win32_Processor | Select LoadPercentage | Format-List gives info regarding the Host CPU cores load.
The number of CPUs to allocated RAM ratio must always be 1:2, for example, 4 CPUS and 8 GB RAM. The maximum recommended size for a scanner instance is 8 CPUs and 16 GB RAM.
We strongly recommend disabling the Checkpoints setting on Hyper-V for all Qualys Virtual Scanner Appliance and deleting all created checkpoints for these virtual machines.
Qualys strictly prohibits creating a new virtual scanner instance from a snapshot or clone.
The following commands allow you to get the list of available checkpoints for a specific virtual machine and delete them for Qualys Scanner Virtual Machine.
| Command | Description | Example |
|---|---|---|
| Get-VMCheckpoint -VMName <virtual machine name> | Displays the list of available checkpoints for a specific VM. |  |
| Remove-VMCheckpoint -VMName <virtual machine name> | Deletes the checkpoints for Qualys Scanner VM |  |
If needed, adjust the Memory and Processor settings for the Scanner VM and restart it. The scanner booted from its original disk, not a previously saved checkpoint.
If you have any queries or concerns, contact Qualys Support.