Windows Server 2008 Top Ten New Highlights

For a server operating system, Windows Server 2008 (WS2K8) will have a leap forward in both the underlying architecture and surface functions, its server management capabilities, hardware organization efficiency, Command line remote hardware management convenience, system

For a server operating system, Windows Server 2008 (WS2K8) will have a leap forward in both the underlying architecture and surface functions, its server management capabilities, hardware organization Efficient, easy to command-line remote hardware management, and enhanced system security models will appeal to Windows 2000 and Windows Server 2003 users, and change the way companies use Windows, as well as the physical and logical architecture of the network.

According to Microsoft's presentation at WinHEC 2007 conference, where WS2K8 summarized in the top ten most anticipated characteristics:

◆ 1, self-healing NTFS File System

From the DOS era, file system errors mean that the corresponding volume must be repaired offline. In WS2K8, a new system service will work silently in the background, detecting file system errors, and Automatically fix it without shutting down the server.

With this new service, when errors occur in the file system, the server only temporarily inaccessible part of the data, the overall operation not affected, so the basic CHKDSK can retire.

◆ 2, Parallel Session creation

If you have a terminal server system, or multiple users simultaneously log in the family system These are the Sessions. Prior to WS2K8, the creation of Sessions was done one by one, which was a bottleneck for large systems. For example, when hundreds of people returned to work on Monday morning, many people had to wait for the Session to initialize.

Vista and WS2K8 have added a new Session model that can launch at least four at the same time, and if the server has more than four processors, it can also launch more at the same time. For example, if you have a media center in your home, each family member can open the media terminal in their own room and get the video stream from the Vista server at the same time, and the speed will not be affected.

◆3, fast shutdown service

A major historical problem with Windows is that the shutdown process is slow. In Windows XP, once the shutdown starts, the system will start a 20-second timer, then remind users whether they need to manually close the program, and in Windows Server, the impact of this problem will be more obvious.

At WS2K8, the 20-second countdown is replaced by a new service that can always signal when the application needs to be shut down. Developers are beginning to wonder if this new approach will deprive the application of the right, but now they have accepted it and think it's worth it.

◆ 4, Core Transaction Manager (KTM)

This is especially important for developers because it can greatly reduce or even eliminate most often lead to system The reason the registry or file system crashed: multiple threads tried to access the same resource.

There is also a new component of KTM in the core of Vista. The purpose is to facilitate a lot of error recovery, and the process is almost transparent, and KTM can do this because it can be used as A transaction manager accessed by the transaction client works.

◆ 5, SMB2 network file system

Once upon a time, Windows on the introduction of SMB, as a network file system, but now SMB Already too old, the historical mission has been completed, so WS2K8 uses SMB2 to better manage the growing volume of media files.

Microsoft's internal testing, the speed SMB2 media server can be up to four times to five times Windows Server 2003, equivalent to 400% increase in efficiency.

◆6, Random Address Space Distribution (ASLR)

ASLR has appeared in 64-bit Vista, which ensures that any two concurrent instances of the operating system It will be loaded to a different memory address.

Microsoft said that malware is actually a bunch of unruly code that does not follow the normal procedures required by the operating system, but if it wants to write files on the user's disk, you must know the system service. Where? On 32-bit Windows XP SP2, if malware needs to call KERNEL32.DLL, the file will be loaded into the same memory space address each time, so it is very easy to use maliciously.

But with ASLR, the address space of each system service is random, so malware wants to find them easily, basically no play.

◆ 7, Windows Hardware Error Architecture (WHEA)

In the end, Microsoft decided to standardize error, or rather the application The program reports to the system that the protocol that found the error is to be standardized. The big question

Error Reporting is currently being given the device a variety of ways, there is no standard between the various hardware systems, so when writing applications difficult set of all errors resources, And unified presentation, which means writing a lot of specific code for a variety of specific situations.

In WS2K8, all hardware related errors are reported to the system using the same interface. Third-party software can easily manage and eliminate errors, and the development of management tools will be easier.

◆ 8, virtualization

While Microsoft streamlined its virtualization software & ldquo; Viridian & rdquo ;, but this is still a boon for business, you can effectively Reduce overall costs. Although VMware is unique in the virtual machine space, Viridian has enabled both Intel and AMD to provide support for hardware-based virtualization, providing a virtual hardware support platform that VMware can't do.

According to IDC statistics, US companies have already spent billions of dollars on processor resources that they simply don't use, but this is not their fault, but the operating system management problem causes up to 85%. CPU resources are often idle. A major goal of WS2K8 plus virtualization is to enhance the use of idle resources and reduce waste.

◆ 9, PowerShell command line

PowerShell Vista as part of the original plan, but only as a free download to enhance attachment, and later became the Exchange Server The key components of 2007 will be an indispensable member of WS2K8. This new command line tool can be used as a complement to graphical interface management or it can be completely replaced.

Iain McDonald, Windows Server Director, declares: "If everything is up to me, I would be happy to set PowerShell as the default shell for Windows." I like this thing too much. ”

◆10, Server Core

This is the real change of Microsoft. If you are a Unix and Linux administrator, you may be familiar with low-power, virtualized, graphics-free, server systems that require only one terminal management in a protected environment that acts as a DHCP and DNS server, but Windows can do the same. Done.

as a server operating system, Windows Server has been criticized quite the place is that it is & ldquo; Windows & rdquo ;, because administrators do not need to install the graphics driver, DirectX, ADO, OLE and other things, After all, they don't need to run user programs; moreover, graphical interfaces have always been an important factor influencing Windows stability.

Starting with WS2K8, these things will become an option when installing. The current Beta 3 version can handle eight roles, and eventually there will be more official versions, such as file servers, domain controllers, DHCP servers, DNS servers, etc., and its location is also very clear: a small and secure server that is secure and stable.

In addition, if the configuration is reasonable, the administrator can also remotely manage the Server Core installation without a graphical interface, just open the TCP 3389 port.

PowerShell can also run on Server Core, but it is clear that the graphical interface program will not work, .NET Framework will not be supported by the game natural Jiubuyongti.