In a 7U rack (1U = 48.26cm), one can have a blade chassis with a huge compute capability of 14 servers. The basic norm is to have zero PD between earth and neutral into the load, failing which there may be noise with a probability to boot the system as mentioned earlier.ĭeployment of blade architecture reduces the footprint. The power distribution unit (PDU) should be kept close to the IT load, preferably attached to the rack to reduce their physical footprint. Place UPS systems away from the server room to protect it from the electromagnetic field. Arrange the data center equipment appropriately. Lastly, a Power Quality Audit is vital to ensure quality of the incoming power.Ĥ. CAPEX entails what equipment you will install in your data center, leaving room for flexibility if future power needs scale-up while OPEX is directly linked to the operational efficiency of the data center. Improving on the total cost of ownership is critical. The systems should be reliable and available 99.999% of the time. The vendors providing the facilities need to consider these options in order to enhance the IT power infrastructure: What is the current status of the power infrastructure? Is it a green field venture or a legacy system build-up, or if from a small setup you are looking to migrate or graduate into a larger kind of a setup?Īn adaptive architecture design depends on flexibility and scalability without having incremental losses by virtue of legacy power systems. Last layer is the IT infrastructure which has servers, storage, and the networking, power and cooling equipment. The topmost business layer has the applications or the ERP running on it followed by the service layer which includes the mail services, print services, RDBMS services. Adaptive architecture has three layers: business, services, and IT infrastructure. Here is where adaptive architecture comes into play. The stronger the base, the more robust is the setup for the eco-system. While designing the IT power infrastructure, look at it in a holistic manner. Make certain there is zero water leakage in the datacenter as water is a PCB spoiler. The cleaning should be done with high efficiency particle arrester (HEPPA filters) vacuum filters, as blowers are harmful. On the other hand, energy optimizers built into the UPS will stack 80% of the load in only one UPS and keep the other three in idle position thus increasing the efficiency to 96%.Īn absolute dust and water-free environment is needed to maintain the IT power infrastructure in the data center, including under the raised floor. For example, if the load is equally shared among four UPSes, then efficiency will be lower by almost 92%. The lower the loads, the lower will be the efficiency of the product. This creates an intelligent integrated infrastructure (III) that senses the load, and changes dynamically to improve the overall efficacy and efficiency. Ideally, opt for energy optimizers in the UPS. Server arrangements help to distribute the power and load by reconfiguring the load arrangements to work in tandem with power and cooling requirements. The IT power infrastructure setup depends on the IT workload, that is, the power factor consisting of IT servers, storage, and networking equipment. Voltage fluctuation may have disastrous effects on the server and collaterally on the IT power infrastructure. The transformer inbuilt into the UPS should be located 75 feet from the load, failing which it creates a harmonic PD in voltage, resulting in noise. In case of tier-3 and tier-4 setups, there needs to be zero power distribution (PD) and no difference between earth and neutral. (2+1 is the fault tolerant and n+1 is the redundant UPS which is concurrently maintainable). In addition to redundancy that is on the supply front, right from the first point of upstream you need to have two sets of input power: two DGs, four UPSes. Tier-4: This setup has four UPSes to assure concurrent maintainability and fault tolerance. It requires at least n+1 redundancy, that is, when one path is running, the other is redundant. Tier-3:This setup has three UPSes to help the organization ensure redundancy and concurrent maintainability. So if one fails, the other takes over through a bypass. Tier-2: A tier-2 data center setup has two UPSes (uninterruptible power supply) that run in parallel to ensure redundancy. The IT power infrastructure should be designed as per the following specifications: Allocate adequate level of backup power – Power backup is a critical component needed to ensure 100% availability of the data center.
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