Hello Udo,
thank you very much for your reply.
I have a PVE cluster of 7 nodes with around 50 VMs (Mixed systems, mail, dns, owncloud, web, db), they are all some mid range Dell 1HE rackserver with 4 harddrive bays. So far I have equipped 4 of the seven with 1 harddrive for PVE, 1 SSD and two...