Servers for Business: Energy Efficiency Matters

    Hello, Habr! In this publication, we’ll talk about the new Fujitsu PRIMERGY server models that are optimized for maximum energy efficiency.

    Fujitsu is one of the leading server manufacturers. As noted Gartner analysts, the number of server shipments in the EMEA market for the fourth quarter 2014 it ranks fourth after HP, Dell and Lenovo with a share of 5%. It is worth noting that Fujitsu has a very wide range of server systems and periodically improves them through the introduction of innovative technologies. This also applies to the most massive systems. For example, the line of PRIMERGY dual-processor servers was completely updated in September 2014 due to comprehensive improvements made taking into account the wishes of customers.

    And in September last year, Fujitsu introduced new models of its server line PRIMERGY, which use Xeon processors E5-2600 v3 family and DDR4 memory technology. What is remarkable about these new systems in a situation where the standardization of nodes and components of server platforms makes the products of leading manufacturers so similar in design and characteristics? In what direction does the engineering idea of ​​Japanese system architects work? Fujitsu carries out the development, testing and production of many models of servers, workstations and storage at its factory in the German city of Augsburg (Germany), in close proximity to European customers.

    The developers of the new dual-processor rack and blade servers PRIMERGY tried to solve a difficult problem - to provide the possibility of developing data centers in the conditions of restrictions related to energy consumption and footprint. Indeed, in many data centers, energy consumption limits are almost exhausted, there is little free space. At the same time, requirements for scalability and system performance are growing.

    The new Fujitsu PRIMERGY RX2530 M1 dual-processor rack server is designed for virtualization and horizontal scaling tasks.

    The new PRIMERGY BX2580 M1 blade server is optimized for virtualization and other demanding workloads.

    The test results say how the Fujitsu developers managed to cope with this efficiency SPECpower_ssj2008 in the class of rack servers with a height of 1U - 9811 operations ssj / W. It is interesting that, according to the company, since the start of measuring power parameters and performance in 2007, the energy efficiency of Fujitsu PRIMERGY servers has improved 30 times.

    How are record levels achieved? First of all, it is Cool-safe Advanced Thermal Design technology and power supplies with 96% energy efficiency. Cool-safe enables the server to operate in high ambient temperatures in the data center. The heat resistance of Fujitsu PRIMERGY servers is achieved primarily due to the architecture of the equipment. Traditionally, they use an optimized design of the front grille, which allows to increase its breathability. This solution, combined with a cableless design, provides good airflow, which eliminates the appearance of areas with elevated temperatures.

    As new generation PRIMERGY servers use advanced cooling technologies and energy management tools, they can operate in an extended temperature range, reducing the risk of downtime associated with overheating.

    In modular servers with an integrated infrastructure for power supply and cooling, power and cooling systems take up very little space, and the saved space allows you to optimize heat transfer in the servers themselves.

    Special software monitors the temperature of the components and, if critical values ​​are reached, increases the fan speed or, when using the specified rules, reduces the clock speed of the processors to reduce power consumption and, as a result, reduce the temperature. As a result, PRIMERGY servers are able to operate for a long time at an ambient temperature of up to 40 degrees Celsius, and not just withstand its short-term increase.

    Why is it important? Experts have calculatedthat increasing the temperature in the data center by one degree reduces the level of energy consumption by 4–5%. Reduces the cost of cooling the data center, you can more widely use the freecooling mode. It is also worth considering the energy consumption of cooling and power systems, and in the data center it is sometimes equivalent to the energy consumption of the IT systems themselves.

    According to some estimates, due to an increase in the energy efficiency of the server fleet, a total reduction in energy consumption of 5-10% can be achieved. If we consider a server room with a consumption of 400-500 kW, then it is easy to calculate how much electricity can be saved per year. As for the Cool-safe Advanced Thermal Design technology, Fujitsu estimates that it saves up to 27% on cooling.

    Other effective energy-saving tools are virtualization and implementation of blade systems. By transferring a significant number of services to a small number of physical machines, you can significantly reduce energy consumption.

    The Fujitsu blade chassis contains 18 10U “blades” - the industry’s record for equipment density. These are 648 cores. Each server in the chassis supports RAM up to 1.5 TB. This is important, for example, for deploying virtualization environments with a large number of virtual machines. Compared to rack servers, such a computing platform requires much less cables and patch cords. This means cost savings, fewer connection errors and easier operation.

    PRIMERGY RX2530 M1 server is 24% higheron energy efficiency "classmate" Dell PowerEdge R620 .

    Thanks to the new processors, the PRIMERGY RX2530 M1 has significantly higher throughput than the previous PRIMERGY RX200 S8, and at higher power consumption it demonstrates 28% better energy efficiency.

    Next-generation systems show 52% better maximum results in OLTP tasks compared to previous Fujitsu server models.

    On board the servers are Intel Xeon E5-2600 v3 processors containing up to 18 cores, up to 1536 GB DDR4 memory (24 DIMM slots), up to 8 2.5-inch hard drives / SSDs or up to 10 2.5-inch drives, of these, additionally up to 4 2.5-inch PCIe SSDs, four PCIe Gen3 slots. That is, as necessary, integrate new solid-state drives and hard drives into the system.

    Another interesting technology used in the new PRIMERGY models is the ability to dynamically scale I / O bandwidth according to application needs through the use of a modular scalable LOM architecture (LAN On Mainboard), the so-called DynamicLoM, and universal converged network adapters (CNA) . DynamicLoM technology allows you to use a network port as a three-in-one port, that is, with three different types of ports, three different port numbers and two data rates.

    The Fujitsu blade chassis employs I / O port virtualization and its own integrated switches. The flat network on these switches requires fewer rack level (ToR) switches. Up to eight switches can form one logical switch, which simplifies management.

    Support for the most common RAID configurations is built into the system board and does not require a special controller. Therefore, based on the server, you can create entry-level RAID without additional costs.

    It should be noted that the cost of servers is only a small part of TCO, the tip of the iceberg. Total costs also include system maintenance, software licenses, and cooling costs. These are significant costs to consider when deploying IT systems.

    An effective heat sink system allows you to use the latest processor models in servers, which gives a performance increase of 30-40%. At the same time, the cost of the CPU is only 5-10% of the server cost. That is, the customer gets more productivity for less money. The purchase of such systems means that you will need to buy less software licenses, and this is also a significant savings. Reducing the number of servers also improves the manageability of IT infrastructure.

    Our previous publications:

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    " New Fujitsu server fleet

    Thank you for your attention, we are ready to answer your questions.

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