The unsung hero is the Power Distribution Unit (PDU) when it comes to supplying power to data centres, server rooms, or network closets. A server rack PDU offers stability and systematized power to all your important IT implementations and is, therefore, a crutch of effective infrastructure control. In this article, we are going to discover what server rack PDUs are, what types of them exist, what is their important characteristics are, and what should be done to select the necessary one.

What is a Server Rack PDU?

A PDU is a device fitted in a server rack that supplies electrical power to servers, switches, routers, and other IT equipment. It behaves as an intelligent power strip but is built particularly to perform in high-density mission-critical situations.

Why Server Rack PDU Power Matters

Power distribution is not only about keeping the equipment running but also about maximizing uptimes, minimizing energy wastage, and ensuring safety within challenging surroundings. Mishandling of power may result in:

Overloads and outages

Outage and equipment failure

Increased energy costs

Difficult troubleshooting and a cable mess

Types of Server Rack PDUs

Here are the main types of PDUs commonly used in server racks:

1. Basic PDUs

No monitoring, non-switching, simple entry.

It is suitable for small environments or non-critical systems.

2. Metered PDUs

Show visual displays of loads to avoid overload.

Assist in monitoring power consumption on a rudimentary level.

3. Monitored PDUs

Provide network-based remote power surveillance.

Suitable for huge data centres that need knowledge of the use of energy.

4. Switched PDUs

Ensure offshore/on/off-cycle capacities.

Perfect to reboot devices or to do load balancing remotely.

5. Intelligent (Smart) PDUs

Integrate sensors on environmental and switching as well and monitoring.

Aid in performance optimization, trend tracking, and assist energy efficiency.

Key Features to Consider

These are the key features of the server rack PDU that you should consider:

Amperage/Volts: It has to meet the requirements of the power of your equipment.

Form Factor: Vertical (0U) or horizontal (1U, 2U) based on rack space.

Outlet Type and Amount: There are C13, C19 match plugs that should match your equipment.

Redundancy Support: A/B feed system redundancy through dual power input.

Remote Monitoring and Control: To have a better view and control.

Environmental Sensors: Measure temperature, humidity, and airflow.

Hot-Swappable Network Cards: To maintain easy maintenance without having to shut the network down.

Choosing the Right Server Rack PDU

Each data center or server room requires special needs. This is a checklist that will assist you in making your choice:

Know Your Load: The total load watts and draw of your gadgets.

Know Who You Will Grow: Select scalable PDUs to grow in the future.

Evaluation of remote requirements: In case of controlling numerous locations, intelligent PDUs are a necessity.

UPS (Universal Power Supplies) Compatibility: PDUs must also interact well with your UPS to offer redundancy solutions.

Safety and Compliance: Safety precautions should be sought by having the UL or CE approval.

Final Thoughts

Server rack PDU is not a power strip but a purposeful device that minimizes downtime, enhances the use of energy, and provides command and control over the IT environment. Regardless of the size of your server room or data center, you could bring yourself a world by investing in the appropriate PDU.

Confused about which PDU to go with in your data center? We will steer you to the most appropriate solution depending on your power needs and expansion strategies.