Let me clarify. It's not a production environment. It's a small setup for testing purposes running ESXi on a Supermicro X8SIL-F (Dual Intel 82574L Gbit Ethernet)
There is one Solaris 11 vm (b173) with a zfs filesystem where the two other vms are stored; i.e. one Debian 6 (headless) vm and a Windows Server 2008 R2 vm (serving as a RDVH RemoteFX deployment)
And yes, I regularly check logs for irregularities.