RHEVM: "Storage Permission Problem"

Hi

I wanted to share with you a problem we encountered recently with starting a RHEV based VM following a complete powerdown of the RHEV environment. Maybe someone has hit the same issue.

Due to a scheduled datacentre powerdown, we were forced to shutdown our entire RHEV  environment consisting of a Manager instance and seven hypervisors. The VM's , hypervisors and manager were all shutdown gracefully with no problem. Upon restart, one single VM out of 30+ failed to boot and instead kept reverting to a "suspend" state, showing the Paused type icon from the manager. The event log showed the message "VM has paused due to a storage permission problem".

The console showed that the VM was booting to the point of interacting with its second disk at which point it would become suspended. We suspected an issue with the underlying LV that provided the second disk. Luckily the VM was fairly small in terms of attached disk and we were able to export, remove and then re import to get around the problem but we are keen to understand what caused the initial "storage permission problem".

Support case 00760769 has been raised and we're currently awaiting results of log analysis.

I'll keep you posted.