Server purchase experience talking about the era of single core and multi-nuclear crossover

Server market on a wide range of products, all the Chinese and foreign servers for large, medium and small users to launch a high middle and low full range of servers, especially in the low-end areas, the same level of server homogenization serious. And the major manufacturers in order to more prominent products hot: began in the service, the program to carry out guise, packaging, making similar products in the user to buy server products are more and more confused.

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Million change in which, no matter how the manufacturers packaging, as long as we grasp the focus of analysis, we can select a suitable server products for the normal operation of the business to provide a strong support. The following are some of the problems users often encounter in the purchase server, I hope that the answer can provide you with some reference and help:

Question one: What are the main configuration parameters to be inspected when choosing a IA server?

CPU and Memory: the type, frequency and number of CPUs determine the performance of the server; the server should use a dedicated ECC parity memory and should be used with different CPUs.

Chipsets and motherboards: Even with the same chipset, different motherboard designs can have a significant impact on server performance.

NIC: The server should be connected to the port with the fastest transfer rate and a minimum of one gigabit NIC configured. For certain servers with special applications, such as FTP, file servers, or video-on-demand servers, you should also configure two gigabit NICs.

Hard drives and RAID cards: The drive's read/write rate determines the processing speed and response rate of the server. In addition to using IDE hard disks on entry-level servers, you should typically use SCSI hard drives with higher transfer rates and better scalability. For some servers that cannot be easily aborted, hot-swappable hard drives should also be used to ensure server maintenance and expansion.

Redundancy: Disk redundancy uses two or more hard disks to achieve the disk array, the network card, power supply, fan and other parts redundancy can ensure that some hardware damage, the server will still be able to operate normally.

Hot plug: Refers to live on the hard disk or card plug operation, to achieve recovery and system expansion. Also, when choosing a IA server, you typically need to consider performance metrics such as manageability, availability, scalability, security, and reliability.

Question two: What is the application scope of 64-bit server coverage?

From the application type, it can be divided into primary domain server, database server, Web server, FTP server and mail server, high Performance computing cluster system. Currently, the mainstream server processors are: Intel itanium® processors, Intel Xeon processors and AMD's Opteron processors, which are the new 64-bit servers introduced in recent years. The author of the above several applications, discusses the server in different applications, the server subsystem of the different requirements for a simple overview:

The primary domain controller network, the user, the Computer Management Center, provides the safe network work environment. The primary domain controller's system bottleneck is memory, network, CPU, memory configuration.

The file server file server acts as a data storage repository for the network, and its performance requirements are to quickly pass data between the user and server disk subsystems on the network.

The database server database engine includes DB2, SQL Server, Oracle, Sybase, and so on. Database servers typically require multiprocessor systems, and SQL Server, for example, can take full advantage of SMP technology to perform multi-threaded tasks and increase throughput by using multiple CPUs for parallel operations on the database. In addition, SQL Server hits the L2 cache by up to 90%, so the bigger the L2 cache, the better. Memory and disk subsystems are also critical to the database server.

Web server Web servers are used to respond to Web requests, and their performance is determined by the content of the Web site. If the Web site is static, the system bottleneck, in turn, is network, memory, CPU, and if the Web server is focused on intensive computing (such as dynamically generating web pages), the system bottlenecks are: Memory, CPU, disk, network, because these sites generate transactions and queries using dynamic content connected to the database. This requires additional CPU resources and enough memory to cache and process dynamic pages.

The cluster system of high performance computing is generally above 4 nodes, the node machine uses the Opteron system based on Itanium, AMD 64 Technology, the performance of this kind of cluster system depends mainly on the technical strength of the manufacturer, the design of the cluster system and the tuning of the application.

Question three: multi-core era, the more the processor kernel the better?

The two big chip giants Intel and AMD launched multi-core processors at the end of 2005, and there is a growing number of new processors in the processor market, whether they are dual-core or are about to become the 2007 mainstream quad-core processors or the future eight-and 16-core processors. In the performance, in power consumption and other server accessories, have greatly promoted the development of the industry.

For most users, the server in the application level, is still unchanged. The only thing to consider is whether the user's own development can meet the performance of the server. Today, for a four-core high-performance server, its procurement costs far higher than the current mainstream dual-core servers, if the dual-core server can meet your needs, but also to the future of 3-5 years to reserve enough space, then there is no need to choose expensive four-core servers.

Comprehensive above: for single core/dual-core/multicore integrated crossover era, the choice of servers should be focused on their own needs, with its own application needs, capital investment as a factor, to choose the most appropriate server products.