I have a BE6K Solution with install four virtual machines (two Unified Communications Manager, one Unity Connection and one IM & Presence),
today is the second time that the physical machine response properly but the four virtual machines are up but not working.
If I Power Off the virtual machine from the vSphere Client the virtual machine try to power down but are block at 95% of the power down step; I restart the physical machine from the Cisco Integrated Management Controller and Power On the virtual machines and the infrastructure becomes active and all machines working correctly.
In the vmware events I view an error: UCS-XXX: NVRAM write failed
The VMware ESXi version is the 5.0.0 build 623860 and the Communications Manager/Unity Connection Version is the 126.96.36.19900-5
Can you help me about this issue?