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Monitoring power usage within a server room helps to plan for capacity and prevent potential overloads and nuisance breaker tripping. Power can be monitored at the branch circuit level, power sockets (wall) or power outlets (PDUs) and within server racks and cabinets. Critical power components including uninterruptible power supplies, generators, batteries and energy storage systems can also be monitored. Each of the sensors, detectors and converters listed have to be connected to an monitoring base unit as part of an environment monitoring system.
The path within a data centre from the building incomer to the IT loads is referred to as the critical power path. It is important to be able to monitor power consumption and energy efficiency along the critical power path to ensure that the data centre is operating within its specification in terms of power usage (kW) and energy efficiency. Data centre power monitoring also helps with capacity planning as the number of server cabinets, servers and IT devices are increased.
Hardware solutions within the critical power path include LV switchboards, uninterruptible power supplies and power distribution units. Each of these solutions will have some form of built-in power monitoring. Information may be available locally via built-in displays and meters, and remotely via SNMP and communications interfaces. When there is a power outage, alarms may also be generated and reported remotely.
Monitoring power quality can also help to extend the working life of servers and IT devices installed within a data centre environment. Installing some form of power protection from spikes, sags, surges, brownouts, and harmonics which can all place electrical stress on power supplies will typically help to extend their working life. Typical examples include surge suppression devices, voltage stabilisers, isolation transformers and UPS systems.
Server room power monitoring solutions can be installed to monitor power usage within the room, server rack or at the power distribution unit outlet level. By monitoring power usage, overloads can be avoided, and additional capacity safely added to an existing section of the critical power path.
A server room provides a managed and secure environment in which an organisation houses and operates its critical IT servers. Monitoring power usage helps to improve uptime, capacity planning and energy efficiency. The main benefits of server room power monitoring include:
For an alternative power and energy monitoring solution see our range of Smart Power Devices including in-line energy meters that can be monitored over WiFi and Cloud connections, smart PDUs and power strips.