Enterprise Purchase rack-type server is 1U or 2U appropriate

As you know, 1U rack-less servers are limited to scaling and cooling, with tight limits on accessories and 20–30% on cost over the same configured tower servers. Now a lot of http://www.aliyun.com/zixun/aggregation/18041.html "> Enterprise Servers are in fact by the professional IDC agency unified Trusteeship, which charges the highest price to 1U highly affordable." By such standards for a long time, the cost of capital is a 1U rack of the most cost-effective. Therefore, it is precisely because of this, a lot of customers caused a misleading. In the enterprise IT procurement often preferred 1U server, with the future expansion, found the drawbacks, regret! This article is based on this blind purchase point of view, with you to explore this very practical problem, Enterprise Rack server: 1U or 2U?

    A, "Mix 1U"

    now 1U server is in a frenzy, to make enterprise users rational view of 1U, we must understand the disadvantages of 1U server. "I will not only scold you is a jerk, but also to prove that you are a jerk ...", so I acquisition 1U part of the "evidence", and strive to "mix 1U" ...

    Now let's get to know everything. First of all, 1U height is limited, so it has special requirements for some accessories, power supply, fan, radiator, memory, and even optical drive must be small thin, which not only increases the overall hardware costs, but also increases the difficulty of screening accessories. It is conceivable that so many accessories in such a crowded space long-term high load operation, if not to a good cooling effect, not only easy to panic, but also greatly shorten the life expectancy. Therefore, even if a small fan can not be ignored, this shows that 1U server accessories in the purchase of more difficult than other types of servers are much larger. That is to say, in a way, the danger hidden by 1U itself has to be taken into account. Unlike 2U servers, which have almost all redundant power supplies and a more robust redundant fan design, they can significantly improve the reliability of the system, especially when the operating system is destroyed and must be forced to use Out-of-band management, and 1U servers have few machines to provide a standby power supply.

    Second, because of its own space greatly reduced, 1U server in the scalability and heat dissipation of a certain limit, generally can not achieve too complete equipment expansion, so the single machine performance is relatively limited, the application scope is also relatively limited, can only focus on one aspect of the application, such as Remote Storage and the provision of Web services. As for the small space and the expansion of the problem, is not completely no way to solve, because the use of cabinets to install such an external expansion cabinet can also achieve large-scale expansion, but due to rack-typeServer stand-alone performance is limited, so the expansion is also a unilateral ability to be multiplied, so this type of server is only in a certain kind of application of a better, we will be zoned as a functional server, the server is more targeted, generally can not be used to move it.

    with the rapid development of the future, you use cluster technology to expand the way, with a 1U server to achieve load balancing or extended storage. Then we can calculate the next account, now 1U escrow charges are about 4500 yuan, 2U charges generally more than 1000 yuan, four years of custody 2U to pay 4000 yuan, but the two two-way 1U server 442 u server to spend more than 100 million of the funds. Of course, the performance of the two 1U servers may be more than a 4-way 2U server, but we calculate, is really 2U server more cost-effective.

    Understand from an application requirement that 1U servers are not the only choices we have. It has a lot of disadvantages in exchange for its space advantage, and it is difficult to solve the hidden trouble caused by the future expansion. Therefore, we have a good reason to "mix 1U."