Hi there! I know just how crucial it is to have a comprehensive understanding of the inner workings of data centers. In today’s fast-paced tech-oriented world, data centers are the backbone of the internet, storing and managing the endless streams of data we produce on a daily basis.

One of the building blocks of a data center is the power distribution unit (PDU). If you’re not familiar with PDUs, you’re not alone – many people have only a basic understanding of their function. But fear not, because in this comprehensive guide, I’m going to take you on a deep dive into PDU types and break down everything you need to know, step by step.

This guide will provide you with a comprehensive overview of the different types of PDUs commonly used in data centers, including basic, metered, monitored, and switched PDUs. By the end of this guide, you’ll have a solid understanding of how PDUs work, their purpose, and how to choose the right one for your data center needs.

So, whether you’re an IT professional or someone who simply wants to better understand the workings of data centers, grab a cup of coffee, sit back, and let’s dive into the world of PDU types together.

What are PDU types?

Introduction: Understanding PDU Types

A Power Distribution Unit (PDU) is an essential component in a data center’s infrastructure. A PDU is used to distribute power from a main source to multiple devices such as servers, switches, and storage systems. It is important to understand the different types of PDU available in the market as they serve different purposes.

Rack Basic PDU: A Simple Overview

The Rack Basic PDU is the simplest version of a PDU available in the market. It provides basic power distribution capabilities, with multiple sockets to plug in devices. They are available in different form factors, depending on the number of sockets required. Common form factors are 1U, 2U, and 3U. Rack Basic PDU does not have any intelligence or built-in monitoring capabilities.

The Rack Basic PDU is a cost-effective solution for data centers with basic power requirements. It is suitable for non-critical applications where a power outage would not cause significant damage.

Rack Metered PDU: Monitoring Power Usage

A Rack Metered PDU is equipped with built-in digital meters that allow data center managers to monitor power usage. The metering feature displays real-time power consumption data allowing data center managers to measure the power usage of individual devices, groups of devices, or the entire rack.

The Rack Metered PDU allows data center managers to monitor power usage and identify inefficient devices, enabling them to take corrective action and optimize energy usage. Metered PDUs are available in different form factors and styles, including horizontal and vertical mounting options, and are suitable for small to medium data centers.

Rack Monitor PDU: Advanced Power Monitoring

A Rack Monitor PDU is a more advanced PDU that provides additional monitoring capabilities, like environmental sensors, humidity and temperature sensors, and door and motion sensors. The data from these sensors is sent to a central management system where data center managers can view and monitor environmental conditions, manage power usage, and troubleshoot problems.

Rack Monitor PDU can be hardwired to the central management system, networked with other PDUs, or even provide remote access capabilities. The additional monitoring capabilities make the Rack Monitor PDU a suitable solution for environments where downtime can cause significant financial losses like a medical facility.

Rack Switched PDU: Controlling Power Distribution

A Rack Switched PDU provides full control over power distribution to each outlet remotely. The Switched PDU has additional features like remote power switching, power sequencing, outlet-level monitoring, and alerts.

Data center managers can use these features to remotely power cycle specific outlets, turn on/off particular devices, or apply power sequencing to avoid overloading servers during startup. The Switched PDU is ideal for organizations that have critical systems and require granular control over power distribution.

Key Features of PDU Types

Rack Basic PDU