Windows Server 2012, codenamed “Windows Server 8” is a server version of
Windows 8 using new file system support called ReFS(Resilient File
Windows Server 2012 can switch between “Server Core” and “Server with a
GUI” installation options without a full reinstallation. Server Core – an
option with a command-line interface only – is now the recommended
configuration. There is also a third installation option that allows some
GUI elements such as MMC and Server Manager to run, but without the normal
desktop, shell or default programs like File Explorer.
Windows PowerShell has over 2300 commandlets, compared to around 200 in
Windows Server 2008 R2.
IPAM(IP address management: role for discovering, monitoring, auditing,
and managing the IP address) is used for the management and monitoring of
Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP)
servers. Both IPv4 and IPv6 are fully supported.
Server Manager has been redesigned with an emphasis on easing management
of multiple servers.
By projecting a virtual NUMA topology into large virtual machines, the
guest operating system and applications such as SQL Server can leverage
their existing thread scheduler and memory allocation optimizations
Non-uniform memory access (NUMA) is a computer memory design used in
multiprocessing, where the memory access time depends on the memory
location relative to a processor.
The Active Directory Domain Services installation wizard has been replaced
by a new section in Server Manager, and a GUI has been added to the Active
Directory Recycle Bin.
Multiple password policies can be set in the same domain.
Upgrades of the domain functional level to Windows Server 2012 are
simplified; it can be performed entirely in Server Manager. Active
Directory Federation Services is no longer required to be downloaded when
installed as a role, and claims which can be used by the Active Directory
Federation Services have been introduced into the Kerberos token.
Active Directory in Windows Server 2012 is now aware of any changes
resulting from virtualization, and virtualized domain controllers can be
Windows Server 2012, along with Windows 8, includes a new version of
Hyper-V.Each virtual machine in this version of Hyper-V can access up to
64 virtual processors, up to 1 terabyte of memory, and up to 64 terabytes
of virtual disk space per virtual hard disk (using a new .vhdx format).
Up to 1024 virtual machines can be active per host, and up to 8000 can be
active per failover cluster.
Windows Server 2012 includes version 8.0 of Internet Information Services
(IIS). The new version contains new features such as SNI, CPU usage caps
for particular websites,centralized management of SSL certificates,
WebSocket support and improved support for NUMA, but few other substantial
changes were made.
Dtacenter:High density private and hybrid cloud enviorments
Standrad:Low density or non virtualized environments