What Issues Should Be Noted in Winter Data Center Operation And Maintenance

In winter, indoor temperature drops and equipment is susceptible to the influence of cold air. Therefore, it is necessary to ensure the normal operation of the constant temperature and humidity equipment in the computer room, maintain appropriate temperature and humidity, adjust the operating parameters of the precision air conditioning according to environmental and temperature changes, save energy, and ensure the smooth operation of the IT equipment in the computer room.

Next is the air conditioning system, which needs to focus on outdoor equipment. Low temperatures can freeze the facilities outside the data center, especially in some severe cold areas in the north, including outdoor units, supply and return pipes, valves, cooling towers, cold storage tanks, water pumps, etc. Although corresponding insulation protection measures have been taken, there is still a possibility of failure. Therefore, we need to focus on monitoring the actual situation of these devices to ensure the normal operation of the data center during winter. Most data centers switch to natural cooling sources for cooling in winter, such as plate heat exchangers. While using natural cooling methods, we also need to pay attention to our mechanical cooling, such as chillers, to ensure that they are in normal condition at all times. In case of emergency, they can be switched at any time to achieve uninterrupted cooling.

In addition, severe weather such as cold, rain, and snow also have a certain impact on the power supply of data centers, especially in harsh winter weather. The reliability of mains power supply is reduced, and the repair time for mains power interruption will far exceed the normal time period, leading to a sudden increase in operation and maintenance risks. Therefore, we need to take preventive measures, conduct a comprehensive inspection and maintenance of the uninterruptible power supply system (UPS) before winter, troubleshoot batteries, and replace faulty batteries in a timely manner; In addition, key maintenance should also be carried out on diesel generators, including the coolant heating system, supply and return oil pipelines, especially outdoor supply and return oil pipelines and oil pumps. Additional protective measures should be taken to avoid interruption of supply and return oil due to the decrease in winter temperature. Finally, confirm the fuel supply agreement with nearby gas stations to ensure fuel supply in extreme situations and ensure power supply sustainability.

In addition to technical support, the most crucial thing is to start with people. In the cold winter environment, the operations team needs to conduct a comprehensive inspection and maintenance of the data center. This includes a detailed inspection of all pipelines, channels, and large equipment to confirm and eliminate potential hazards in advance, ensuring that they can operate normally during winter. Prepare various standard documents, including SOP, EOP, MOP, etc., and prepare emergency plans suitable for winter. Also pay attention to the weather conditions, and delay or suspend maintenance work in severe weather conditions; Based on the unique climate conditions, develop corresponding inspection plans, including indoor and outdoor equipment, to ensure that the remote monitoring panel is opened normally and to facilitate response measures.

Conduct emergency drills in advance, based on past experience and actual situations, to address potential emergency situations in winter data center operation and maintenance, including equipment failures, power outages, water supply interruptions, safety incidents, fire emergencies, etc., before the arrival of winter. Simulate extreme faults and emergency environments as much as possible to ensure that personnel have the ability to handle emergencies.

Finally, operation and maintenance personnel should also take certain cold prevention measures and pay attention to keeping warm, such as thick coats, gloves, cotton hats, etc. We should also strengthen the safety awareness of operation and maintenance personnel, provide safety training, and avoid personal safety accidents caused by winter operation and maintenance. When carrying out maintenance work outdoors, wear safety protective equipment and pay attention to the slippery ground caused by winter icing, especially in areas with heavy snowfall. Snow has a significant impact on operation and maintenance. While completing operation and maintenance work, we should first ensure the safety and health of personnel.