微軟:Windows HPC Server比Linux更便宜

近日微軟發布了Windows HPC Server 2008 R2,並在壹份新聞稿中大膽的聲稱:”最近的研究表明,使用Windows HPC Server比使用基於Linux的HPC系統便宜32%~51%”。微軟:Windows HPC Server比Linux更便宜這個”最近的研究”是由微軟主辦的,並委托Crimson咨詢公司調查。該研究調查了壹個由250個計算節點和1000個桌面節點組成的HPC系統,統計出分別部署Windows HPC Server和兩個Linux方案的成本。

“微軟的方案確實減少了TCO,”蒙大拿州洛基山超級計算機中心的主任Earl Dodd表示,Dodd為客戶同時運行基於Linux和Windows的計算機集群,”從總體成本來說,Windows比Linux要便宜。”Dodd的客戶大多是中小企業,這些客戶采用Windows壹般無需花費培訓成本。微軟贊助的TCO研究報告說,成本節省大多來自現有基礎架構的集成,比如使用現有的Windows服務器技術管理HPC設備,省下了壹大筆培訓費用。

因此,研究結果似乎認為客戶們更需要Windows,而不是Linux。很多與微軟有關的網站都認為”Windows降低了TCO”,但都沒有給出直接的證明。微軟高調推廣HPC似乎是看到了高性能計算的廣闊前景,研究報告也表示,在過去被認為是最先進的研究人員和科學家才會使用的HPC已經逐漸成為主流,HPC現在正被廣泛的應用於商業和學術機構。

如果Windows HPC Server真的比Linux更便宜,那我們會看到Windows大量部署在超級計算機中。但情況並非如此,當在世界上規模最大最快的超級計算機上運行時,Windows還遠遠談不上超過Linux,世界超級計算機500強榜單顯示,只有5臺超級計算機使用了Windows。當然,當壹個公司運行的業務量不多,並且運行環境大都是Windows的情況下,使用HPC采用Windows方案會便宜壹些。

MCTS 70-640 Exam

Exam Code:70-640
Laguage(s):English, French, German, Italian, Japanese, Korean, Russian, Spanish, Portuguese (Brazil), Chinese (Simplified)
Technology:Windows Server 2008

About 70-640 Exam
This Technology Specialist (TS) exam, Exam 70-640: TS: Windows Server 2008 Active Directory, Configuring, became available in March 2008. This exam is available in English, Brazilian Portuguese, Chinese [Simplified], French, Japanese, Korean, Russian, and Spanish.

Audience Profile
The Microsoft Certified Technology Specialist (MCTS) on Windows Server 2008 credentials are intended for information technology (IT) professionals who work in the complex computing environment of medium to large companies. The MCTS candidate should have at least one year of experience implementing and administering Windows Server 2008 R2 in an environment that has the following characteristics:
•250 to 5,000 or more users
•multiple physical locations, multiple domain controllers
•network services and resources such as messaging, databases, file and print,  firewalls, Internet access, an intranet, Public Key Infrastructure, remote access, remote desktop, virtualization, and client computer management
•connectivity requirements such as connecting branch offices and individual users in remote locations to corporate resources, and connecting corporate networks

報考MCTS考試科目

MCTS是熱門的微軟認證之一,關于MCTS考試科目的選定,有些考生感到陌生,以下是從微軟官網選取的內容:
To earn each MCTS credential, you must pass the corresponding exam(s).

Business Desktop Deployment:Exam 70-6241
Connected Home Integrator:Exam 70-625
Windows Embedded CE 6.0: Application Development:Exam 70-571
Microsoft Windows Embedded Standard 2009, Development:Exam 70-577
Windows Embedded Standard 7, Development:Exam 70-582
Windows Essential Business Server 2008, Configuration:Exam 70-654
Windows Mobile 5.0, Applications:Exam 70-540
Windows Mobile 5.0, Implementing and Managing:Exam 70-500
Windows Server 2003 Hosted Environments, Configuration and Management:Exam 70-501
Windows Server 2008 Active Directory Configuration:Exam 70-640
Windows Server 2008 Network Infrastructure Configuration:Exam 70-642
Windows Server 2008 Applications Infrastructure Configuration:Exam 70-643
Windows Server Virtualization, Configuration:Exam 70-652
Windows Small Business Server 2008, Configuration:Exam 70-653
Windows Vista – Configuration:Exam 70-620
Windows 7 – Configuration:Exam 70-680