Introduction to the new features of Windows Server 2008 R2 RC

Windows Server 2008 R2 RC, which is about to be released synchronously, is rarely mentioned compared to the much-watched Windows 7 RC, but the new system should never be missed if you value server applications more. Although the name is similar, Windows Server2008 R2 is not just a simple enhanced version of Windows Server 2008, it can be viewed as a heavyweight release, and a lot of changes have been made since entering the RC phase, as well as new features.

A special reminder is that Windows Server 2008r2 only provides 64-bit versions and no longer supports 32-bit environments.

The first is the Hyper-V virtualization platform. Microsoft integrated the pre-release version of Hyper-V in Server2008, and later last year released the hyper-v1.0 official version, which will be integrated in SERVER2008SP2, and Server2008 R2 will be upgraded to hyper-v2.0.

hyper-v2.0 the most anticipated function is "livemigration" (dynamic Migration), with Amdopteron and other processors can enable virtual machines in the boot service state to achieve real-time migration between the platform.

Another new feature of hyper-v2.0 is called "Vmchimney", which provides tcp/ipoffload support for virtual machines, which maps a virtual machine to the physical network card of the host, bypassing the virtual interface and improving performance. This feature is disabled by default to avoid performance degradation in the case of a particular non-standard workload, but can lead to significant performance improvements in applications such as SQL backup and recovery, dynamic migration, and so on.

There is also "Virtualmachinequeue" (Virtual machine queue/vmq), but because only Intel can provide support for VMQ hardware at the moment, it is disabled by default.

The scalability of the Server2008 R2 is also greatly enhanced, with the number of support logical processors increased from 64 to 256. On Oltpsqlserver, when the processor core doubles from 64 to 128, the performance is increased by about 1.7 times times, almost linearly, and on the Server2008 R2, which is also the 16 processor core, FSCT file Server workload throughput is about 32% higher than Server2008.

The power consumption of Server2008 R2 is lower than that of Server2008, and it is said that some of the new features will also be added to Server2008 SP2, but no specific test data has been seen yet.

Features are more updated, but memory usage is lower. SERVER2003 Enterprise version in the idle state needs about 250mb,server2008 slightly higher than the 150mhz,server2008 R2 only accounted for about 105MB; Servercore under the same, Server2008 in about 130mb,server2008 R2 less than 100MB.

Finally, the wide area network (WAN) file copy has also made significant progress, of course, both ends of the transmission need to be installed Server2008 R2 and/or Windows7. Microsoft said that the small and medium-sized file upload up to 20% faster, download to sit speed 47%, large file upload up to 100% speed increase; Using command line Replicator Robocopy combined with new multithreaded transmission technology, copying files on a WAN can bring up to 8 times times the speed of ascension.

Windows Server2008 R2 RC was issued internally to MSDN and TechNet subscribers on April 30, and public announcements are scheduled for May 5, synchronized with WINDOWS7RC, and are only one by one RC editions. In the 11th TechEd, Microsoft will also do more in-depth introduction.

As for the final release time, Microsoft confirmed to the staff that Windows7 and Windows Server2008 R2 will be shipped at the end of this year, rather than generally considered early next year. "As you would expect, Windows Server2008 R2 will be available in the second half of this year." We will be releasing more details, but we can expect to see the RTM version and the official release within the next few months. ”