I have about 120 Citrix XenDesktop vm running my vsphere 5.5 infrastructure. These vm runs all from PXE boot shared image located on a Citrix Provisionning Server ! Everything was going very well until i'm upgraded the VMTOOLS to 5.5 in the Citrix Golden image ... Random VMs started to go into Invalid status. It's impossible to start them once they are in that state. I have to removed them from the Inventory and them add them back ... sometimes it does not work ... so before re-importing the vm into the inventory, I have to delete the VMware logs from the vm's folder (ex: VMware-XX.log) ... once I do this I can successfully re-add the VM to the inventory.
I don't think it's a datastore or a host issue since it's been happening on a couple of differents datastores and host ... storage have plenty of free space
Theses vms have no hard drive, they basically boot from the network!
Could the logs become an issue within a vm's folder?