Introduction

If you’re deploying the latest generation of information technology (IT) equipment or adding more servers to a crowded data center, conventional data center cooling methods and systems will likely be inadequate. The most effective cooling solution for any computing facility depends on the specific characteristics of the facility, equipment layout, and server density.

This technology brief first explains limitations of traditional cooling practices. Then it describes a range of systems you can choose from to modify or supplement your existing cooling system to get the cooling capacity your data center requires.

Limits of traditional cooling practices

Enterprise data centers have most often used an open-area approach to cool racks of servers and storage systems. With this approach, one or more computer room air handlers (CRAHs) are placed on the periphery of the data center room. IT equipment (ITE) racks are arranged in a cold-aisle/hot- aisle layout (Figure 1). Cool air is forced through a raised floor plenum and up through vented floor tiles in the cold aisle toward the front of the ITE racks. The cool air is drawn through the ITE racks, and warm air is vented out the rear of the racks and upward toward the ceiling. Air circulation works on the basic strategy of providing cool air at the floor level and collecting warm air near the ceiling.

Figure 1: Traditional open-area data center cooling

Basic room requirement: Raised floor

ITE racks

CRAH

The open-area strategy is generally adequate for racks using up to 10 kilowatts of power and lets data centers scale relatively easily. However, some of the warm air mixes with the cool air, reducing cooling system efficiency. Some equipment generates excessive heat, creating hot spots that need supplemental cooling or specific air channeling. The typical remedy has been to set the cooling system to run colder to compensate for the hot spot.

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HP Modular Cooling System manual Introduction, Limits of traditional cooling practices
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Modular Cooling System specifications

The HP Modular Cooling System (MCS) is a state-of-the-art solution designed to efficiently manage the heat generated by high-density IT environments. As data centers face the ever-increasing demand for processing power, traditional cooling methods often fall short, leading to inefficiencies and raised energy costs. The HP MCS addresses this issue with a scalable, flexible design that optimizes cooling performance while minimizing energy consumption.

One of the main features of the HP Modular Cooling System is its modular architecture, which allows for easy expansion and customization based on the specific needs of a data center. This scalability means that as a facility grows or changes, the cooling system can be modified without the need for extensive renovations or replacements. The MCS can be installed in various configurations, further enhancing its versatility.

The technology behind the HP MCS includes advanced cooling methods such as direct evaporative cooling and chilled water cooling. Direct evaporative cooling utilizes the principles of evaporative heat exchange to cool air without excessive energy consumption, making it an eco-friendly choice. In contrast, chilled water cooling uses a network of pipes filled with chilled water to remove heat from the server environment efficiently. This combination allows the MCS to adapt to various heat loads and ambient conditions.

Another notable characteristic of the HP Modular Cooling System is its intelligent controls and sensors. These components continually monitor temperature and humidity levels within the data center, automatically adjusting cooling output to maintain optimal conditions. This proactive approach helps to prevent overheating, reduces energy usage, and ensures the longevity of IT equipment.

Energy efficiency is further enhanced through the MCS's integration with HP's monitoring and management software. This software analyzes cooling performance trends, providing actionable insights for facility managers, enabling them to make informed decisions regarding cooling strategies. Additionally, the system is designed with environmentally sustainable practices in mind, aligning with global initiatives to reduce carbon footprints and promote green technology.

The HP Modular Cooling System stands out for its combination of innovative technologies, flexibility, and a commitment to energy efficiency. As data centers continue to evolve, the MCS remains a crucial asset in the pursuit of optimized performance and sustainability, providing a reliable solution to meet the demanding cooling needs of modern IT infrastructure.
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