I just went looking for a decent comparison of Hyper-V in Windows Server 2008 R2 and Windows Server 2012. I obviously found this excellent document on download.microsoft.com – but couldn’t find these high-level bullets anywhere.
Hence this post:
Windows Server 2008 R2
Windows Server 2012
Logical processors on hardware
Virtual processors per host
Virtual processors per virtual machine
Memory per virtual machine
Active virtual machines
Maximum cluster nodes
Maximum cluster virtual machines
Yes, through partners
Yes, Windows NIC Teaming in box
MAC spoofing protection
Yes, with R2 SP1
ARP spoofing protection
Network monitor modes
IPsec task offload
VM Trunk Mode
Live storage migration
No, quick storage migration through System Center Virtual Machine Manager
Yes, with no limits (as many as the hardware will allow)
Virtual machines on file storage
Yes, Server Message Block 3.0 (SMB3)
Guest Fibre Channel
Virtual disk format
VHD up to 2 TB
VHDX up to 64 TB
Virtual machine guest clustering
Yes, through iSCSI
Yes, through iSCSI, Fibre Channel, or Fibre Channel over
Native 4 KB disk support
Live virtual hard disk merge
Live new parent
Secure offloaded data transfer
No, server core at operating system setup
VMConnect support for RemoteFX
Hyper-V is available as both the FREE Hyper-V Server 2012 and as a role in Windows Server 2012.
If you are virtualising Windows Server workloads (and have licensed them correctly), Hyper-V is completely “free” – so save yourself a lot of money by NOT purchasing an additional virtualisation solution.
can i downcreat windows server 2008 from 2012
how to create windows server 2012 Active Directory.
simple -->add roles active directory domain services-->and you will be notify that requir dc promo . go from there
Goto server manager, then click manage, add roles/features, select a server from the pool, check the box Active directory domain services, click add features, click next till you see install. Then click install. (Wait for the installation).
Then click on notification area, then click on Promote this server t a domain controller.
Select the deployement operation as Add a new Forest and specify the domain info for this operation.
Select functional level for both forest and domain level
Give the passwrd for dsrm
Give NetBios name
Specify the location for the Active directory database
Run prerequisite check
Install and done.
Verification: Before you install active directory the system is in workgroup model and now it should show you as server.
Check by typing " net accounts " in cmd prompt