UCSD 6.5 recently came out (July 2017) with support for new features, such as
- Windows Server 2016 bare metal provisoning
- ESXi 6.5
- NetApp ONTAP 9.1, including All Flash FAS
Provisioning bare metal Windows servers could be tricky, but here you can find step-by-step instructions (with a workflow) explaining how to do it on FlexPod with UCS and NetApp iSCSI storage.
For your convenience, a sample WinPE.wim file with embedded UCS drivers and WinPE PowerShell packages is available here: WinPE.zip - Box
If your setup is based on EMC SAN storage, you should take a look at this post https://communities.cisco.com/docs/DOC-75045
