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How to Select the Best PDU for Your Server Rack

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Raju Kumar

Guide to buying PDUs: The best PDU for your server rack power requirements varies from data centre to data centre based on whether all-in-one power solutions or basic power solutions are available. 

 

When selecting the best Power Distribution Unit for a server rack, it's normal to feel overwhelmed by the options. The requirement for a high-quality product, power monitoring, the number of power socket outlets, and other factors follow. For businesses that require both basic and smart PDU solutions., these power distribution units (PDUs) are not only devices with multiple outlets made to distribute power to computers, servers, and network switches in a rack, but they also come in a variety of capacities and have various capabilities, such as remote power management solutions. As a result, the question of whether the selection criteria will guarantee that a particular PDU is suitable for an IT server rack or network closet naturally arises. 

 

Guidelines for prospective PDU purchasers: The initial guidelines that follow can assist a business or individual in developing a fundamental understanding of how PDUs operate in a data centre setting. 

• Identify the PDU's most important features. 

• Before selecting the PDU, inquire in depth about it. 

• Compare the PDU options available. 

• Select the PDU according to the applications. 

 

Let us now consider the specifics of what can increase the likelihood of selecting the appropriate and intelligent PDU—horizontal or vertical PDUs: One can install a horizontal or vertical PDU, depending on the amount of rack space and required outlets. 

 

Horizontal PDUs typically have few outlets and can be installed in one or two rack spaces. Vertical PDUs, on the other hand, can be installed on the back or side of the rack enclosure, providing more outlets. 

 

Variations in power and voltage: The PDU must have a surge suppressor in order to mitigate the negative effects of voltage fluctuations and ensure the safety of IT equipment. 

 

Types and the number of locations: Few PDUs provide a variety of outlet types, providing a practical answer to the IT power issue. Additionally, selecting an option with additional outlets guarantees support for the data centre’s subsequent upscaling. 

 

 Production capacity: The PDU's maximum load (in kVA) capacity should not be exceeded by the total power needed by the equipment and connected devices. In a perfect world, it should not go over 80% of its capacity.  Consequently, prior to selecting a PDU, it is essential to estimate the required power. 

 

Additional characteristics: Remote management features that guarantee unit restoration on time, backup, and proper operation are only found in a small number of PDU solutions. Additionally, certain auto-identifying features are able to detect and automatically address issues with network connectivity, ensuring a prompt reboot and cost-effective setup. However, environmental sensors to detect changes in temperature, humidity, water leakage, and smoke are only found in a small number of monitoring devices. Etc. 

 

Offering server rack PDU solutions:  Because any downtime of the PDU can have a direct impact on the operation of mission-critical equipment, selecting the appropriate PDU is an essential step in designing a data centre’s power protection plan and server rack load management.  

 

Famous PDU manufacturers like Elcom know how important the unit is, so they make smart PDU products with certified electrical parts and 100% dependability. 


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Raju Kumar
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