No snapshot present on the VM which could not be backed up – but a yellow mention in the VI client: “Configuration Issues – Virtual Machine disks consolidation is needed“.
When you take a snapshot of a hard drive a new set of files are created.
A little history: As I was testing a third party solution of “Brand X”, this error occured.
In v Sphere 5 a virtual machine can have a “Virtual machine disks consolidation is needed” Configuration Issue warning in the Summary tab.
and received a v Center error stating the operation failed because of some lock on the VM’s vmdk?
After receiving an email from my backup software (Veeam) that one of my VMs needed disk consolidation, I went into v Center & attempted to do so.