Windows Server 2008 R2 SP1 is the
latest Windows Server operating system from Microsoft. R2 SP1 is the right
foundation for today’s businesses to design tomorrow’s automated, secure
datacenters and cloud computing solutions. And for today’s datacenter concerns,
it can immediately reduce operating costs and increase efficiencies via
features like enhanced management control, improved energy efficiency, and
enhanced workload performance through full support for 64-bit computing. It
also provides improved branch office capabilities, exciting new remote access
experiences, streamlined server management, and a powerful new in-box
virtualization solution spanning both clients and servers.
#1. Powerful Hardware and Scaling Features
Windows Server 2008 R2 was designed
to perform as well or better for the same hardware base as Windows Server 2008.
In addition, R2 is the first Windows Server operating system to move solely to
a 64-bit architecture.
Windows Server 2008 R2 also has
several CPU-specific enhancements. First, this version expands CPU support to
enable customers to run with up to 256 logical processors. R2 also supports
Second Level Translation (SLAT), which enables R2 to take advantage of the
Enhanced Page Tables feature found in the latest AMD CPUs as well as the
similar Nested Page Tables feature found in Intel’s latest processors. The
combination enables R2 servers to run with much improved memory management.
Components of Windows Server 2008 R2
have received hardware boosts as well. Hyper-V in Windows Server 2008 R2 can
now access up to 64 logical CPUs on host computers. This capability not only
takes advantage of new multicore systems, it also means greater virtual machine
consolidation ratios per physical host.
#2. Reduced Power Consumption
Windows Server 2008 introduced a
'balanced' power policy, which monitors the utilization level of the processors
on the server and dynamically adjusts the processor performance states to limit
power to the needs of the workload. Windows Server 2008 R2 enhances this power
saving feature by adding more granular abilities to manage and monitor server
and server CPU power consumption, as well as extending this ability to the
desktop via new power-oriented Group Policy settings.
Active Directory Domain Services
Group Policy in Windows Server 2008 already gave administrators a certain
amount of control over power management on client PCs. These capabilities are
enhanced in Windows Server 2008 R2 and Windows 7 to provide even more precise
control in more deployment scenarios for even greater potential savings.
#3. Hyper-V in Windows Server 2008 R2
Windows Server 2008 R2 also holds the
much-anticipated update to Microsoft’s virtualization technology, Hyper-V. The
new Hyper-V was designed to augment both existing virtual machine management as
well as to address specific IT challenges, especially around server migration.
Hyper-V is an enabling technology for
one of Windows Server 2008 R2’s marquee features, Live Migration. With Hyper-V
version 1.0, Windows Server 2008 was capable of Quick Migration, which could
move VMs between physical hosts with only a few seconds of down-time. Still,
those few seconds were enough to cause difficulties in certain scenarios,
especially those includling client connections to VM-hosted servers. With Live
Migration, moves between physical targets happen in milliseconds, which means
migration operations become invisible to connected users. Making this even
easier is a new feature called processor compatibility mode, which allows
administrators to migrate machines between different generations of same-brand
CPUs.
Customers employing System Center
Virtual Machine Manager for Hyper-V will also enjoy additional management and
orchestration scenarios, including a new VM-oriented Performance and Resource
Optimization feature and updated support for managing failover clusters.
The new Hyper-V also has core
performance enhancements, including the previously mentioned ability to take
advantage of up to 64 logical processors and to beef up that CPU performance
with host support for Second Level Translation (SLAT). Finally, VMs can also
add and remove storage without requiring a reboot and also boot from VHD as
well.
#4. Reduced Desktop Costs with VDI
Much of the interest in
virtualization solutions is in the server world. However, equally exciting
advances are being made in presentation virtualization, where processing
happens on a server optimized for capacity and availability while graphics,
keyboard, mouse, and other user I/O functions are handled at the user’s
desktop.
Windows Server 2008 R2 contains
enhanced Virtual Desktop Integration (VDI) technology, which extends the
functionality of Terminal Services to deliver certain business programs to
their employee’s remote desktops. With VDI, programs that Remote Desktop
Services sends to a computer are now available on the Start menu right
alongside programs that are locally installed. This approach provides improved
desktop virtualization and better application virtualization.
Desktop virtualization will benefit
from features including improved personalization management, a near-invisible
integration of virtualized desktops and applications in Windows 7, better audio
and graphics performance, a seriously cool Web access update and more. VDI
provides more efficient use of virtualized resources and better integration
with local peripheral hardware as well as powerful new virtual management
features.
#5. Easier and More Efficient Server Management
Although increasing the capabilities
of your server operating system is always a good thing, the perceived downside
has always been additional complexity and workload for day-to-day server
managers. Windows Server 2008 R2 specifically addresses this problem with lots
of work evident across all of its management-oriented consoles.
Features
in these tools include:
·
Improved datacenter power consumption and
management, as evidenced earlier
·
Improved remote administration, including a
remotely-installable Server Manager
·
Improved identity management features via
the updated and simplified Active Directory Domain Services and Active
Directory Federated Services
Windows
Server 2008 R2 also improves on the popular PowerShell feature introduced in
Windows Server 2008. PowerShell 2.0 significantly enhances the earlier version
with the inclusion of more than 240 new pre-built cmdlets as well as a new
graphical user interface (GUI) that adds professional-level development
features for creating new cmdlets. The new GUI includes colored syntaxing, new
production script debugging capabilities, and new testing tools.
#6. Ubiquitous Remote Access
Today’s mobile workforce is
increasing the demand on IT to provide remote access to corporate resources.
However, managing remote computers is an ongoing challenge; with low wide are
network (WAN) bandwidth and sporadic connection and re-connection processes
interfering with lengthier desktop management tasks such as Group Policy
changes and up-to-date patching.
Windows Server 2008 R2 introduces a
new type of connectivity called DirectAccess—a powerful way for remote users to
seamlessly access corporate resources without requiring a traditional VPN
connection and client software. Using technologies that shipped in Windows
Server 2008, Microsoft has added simple management wizards that enable
administrators to configure SSTP and IPv6 across both R2 and Windows 7 clients
to enable the basic Direct Access connection, and then augment that connection
with additional R2 management and security tools, including management policies
and NAP.
With Direct Access, every user is
considered remote all of the time. Users are no longer required to distinguish
between local and remote connections. Direct Access handles all of these
distinctions in the background. IT professionals retain precise access control
and full perimeter security, helping to ease both desktop security and
management headaches on both sides of the connection.
#7. Improved Branch Office Performance and Management
Many branch office IT architectures
have relatively low bandwidth. Slow WAN links impact the productivity of branch
office employees waiting to access content from the main office, and costs for
branch office bandwidth allocation can amount to as much as 33% of overall
corporate IT spending. To address this challenge, Windows Server 2008 R2
introduces a feature called Branch Cache™, which reduces WAN utilization and
improves the responsiveness of network applications.
With Branch Cache™, clients who request
access to data on the organization's network are sent directions to the file on
the local (branch office) network if the file has ever been requested there
before. If the file is stored locally, those clients get immediate high-speed
access. Such files can be stored either on a local Branch Cache™ server for
larger branch offices or simply on local Windows 7 PCs.
#8. Simplified Management for SMBs
With Windows Server 2008 R2,
Microsoft is focusing more attention at the SMB and mid-market customer. This
new focus provides these customers with a rich landscape of Microsoft product
offerings, from Small Business Server up to Windows Essential Business Server
and now Windows Server 2008 Standard. All SKUs are being outfitted with new
management tools to make SMB IT Pro life easier.
Active Directory’s new Active
Directory Administration Center is one example—all those disparate management
GUIs now hosted in a single interface and all based on PowerShell.
Additionally, there are the Best Practice Analyzers, which Microsoft has
extended to every server role to keep all your server configs in sync with the
latest best practices.
And last but not least, there’s the
new Windows Server Backup utility. Long a second-class citizen, this updated,
in-the-box backup app has been significantly upgraded to include more granular
support for designing backup jobs, including support for system state
operations; and, it has been optimized to run both faster and to use less disk
space.
#9. Foundation for Cloud Computing
Windows Server 2008 R2 is the
foundation for Microsoft’s private cloud computing offerings. Combining core
technologies, including Hyper-V for advanced virtualization, Active Directory
for identity management, PowerShell for customizable automation and R2’s
flexible remote access features, you can use this server platform to construct
pools of virtualized compute resources and securely extend those resources
cross-premises, securely and with custom and automated management.
Whether you’re building a dedicated
private cloud or attaching such a cloud to a hosted or public cloud resource,
Windows Server 2008 R2 is the right bedrock on which to build your
organization’s cloud infrastructure. Best of all, everything you need to get
started with basic cloud computing is included in the box!
#10. Managing Data Not just Managing Storage
Managing storage isn’t just about
managing disks. Storage volume is increasing at a 51% compounded annual growth
rate between 2008 and 2012 according to IDC.* To keep pace and stay
competitive, organizations must begin managing data, not just disks. Windows
Server 2008 R2 gives IT administrators the tools for precisely this kind of
initiative with the new File Classification Infrastructure (FCI). This new
feature builds an extensible and automated classification mechanism on top of
existing shared file architectures; this enables IT administrators to direct
specific actions for specific files based on entirely customizable
classification. FCI is also extensible to partners, which means Windows Server
2008 R2 users can expect to see additional capabilities around FCI being
delivered by ISVs in the near future.
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