Containment: Using either long curtains or rigid plastic to maintain a physical barrier between a hot and cold aisle. In this all-inclusive guide, learn how to improve data center energy efficiency through methods such as maximizing server efficiency and . Power: Electric power is defined as the rate at which electrical energy is transferred by an electric circuit.
Cisco Nexus 9000 and 3000 Series NX-OS Smart Licensing Using Policy A data center's design is based on a network of computing and storage resources that enable the delivery of shared applications and data. Water Efficiency. Sensible Heat Ratio: The ratio between an air conditioner's sensible heat removal capacity and its total heat removal capacity. It includes NVIDIA Ethernet Spectrum switches, LinkX Layer 1 products and most-common data center topologies. An arcing fault can release tremendous amounts of concentrated radiant energy at the point of the arcing in a small fraction of a second resulting in extremely high temperatures, a tremendous pressure blast, and shrapnel hurling at high velocity. In a data center this is a bulk term that refers to the total load in a particular space divided by the total area of that space.
The data center terminology you should know | Optcore Typically the customer maintains full control over the server excluding maintenance. Ground: A conducting connection, whether intentional or accidental by which an electric circuit, or equipment, is connected to the earth or some conducting body that serves in place of the earth. Tier I: A Tier 1 data center is a basic server room implementing the general guidelines for computer system installations. CTs are typically used to transform large voltages to much smaller voltages so that standard metering equipment can be used on a variety of circuits by measuring the secondary voltage rather than the large primary voltage. Depending on the operating conditions, this may be less than the air conditioner rating because some of the air conditioner cooling capacity may be used up dehumidifying the air. The General Data Protection Regulation (GDPR) introduces new rules for organizations that offer goods and services to people in the European Union (EU), or that collect and analyze data for EU residents no matter where you or your enterprise are located. See also: Microsoft Azure and Amazon Web Services - Definitions of Azure services and their AWS counterparts. NEBS: Network Equipment-Building System design guidelines applied to telecommunications equipment. A fan or set of fans draws air through the coil creating a heat transfer between the media and the air. W: Watt, a unit of power, commonly used in electrical discussion, watts are the product of potential (volts, see V) and current (amps, see A). It describes a practice in which many different companies or "tenants" share a data center building for economic efficiencies, as well as to digitally interconnect with other companies within the same facility or campus. Voltage: Electrical force or potential, a technical synonym for voltage is emf or "electromotive force." Calculations of MTBF assume that a system is fixed, after each failure, and then returned to service immediately after failure. Accessible from two sides, main distribution frames feature termination blocks arranged horizontally at the front of rack shelves. The following list describes acronyms and definitions for terms used throughout this . EFC: Equivalent Full Cabinets, the number of full cabinets that would exist if all the equipment in the data center were concentrated in full cabinets. This loop is cooled by dry coolers or cooling towers. Specifically, electrical service is the wiring from the street, through the meter and up to the panelboard, but no farther. N+1 safeguards against lost productivity if one component fails. Energy is given up by the water during condensation. Condenser: A device or unit used to condense vapor into liquid with access to outside air for heat dissipation. Turning Vane: An air management device installed in many floor stands to assist in redirecting the flow of cooling air from vertical to horizontal as it exits the computer room air conditioner or air handler. Keeping warm exhaust air away from the intake of the server racks is a crucial part of making any data center more efficient. Distribution Panel: A wiring board that provides a patch panel function, and mounts either in a rack or on a wall. Condensate Piping: Water that results as a by-product of dehumidification. ESI Ethernet segment identifier. RTU: Rooftop Unit, an air handler designed for outdoor use mounted on a rooftop. Bonding: The permanent joining of metallic parts to form an electrically conductive path that will ensure electrical continuity and the capacity to conduct any current to be present in a safe manner. Also includes colocation, a subset of data centers. Infrared Scanning: Thermographic testing is used to locate defects and potential failures in electrical equipment by scanning for abnormal hot spots and heating patterns. In the days of large, centralized IT operations, this department and all the systems resided in one physical place, hence the name data center. Public Cloud: Cloud infrastructure is available to the general public and is owned by a large provider of cloud services. Hot Aisle: An aisle where rack backs face into the aisle. Control of the servers is handled externally, either from another room in the complex or from a remote location. Humidification: Humidity is introduced to help control electrostatic discharge ESD. Net Rental Rate: A rental rate that excludes certain expenses that a tenant could incur in occupying office space. Typically caused by poor control of airflow due to missing blanking panels, gaps in rows, insufficient air supply, etc. Green Data Center: Data Centers being built considering energy efficiency, environmental impact, and sustainability. In this blueprint architecture . Refrigerant: The working fluid used in the refrigeration cycle is known as the refrigerant. Altoona Data Center. The on-line type of UPS, in addition to providing protection against complete failure of the utility supply, provides protection against all common power problems, and for this reason it is also known as a power conditioner and a line conditioner. Thermoelectric Cooling: Thermoelectric cooling is a way to remove thermal energy from a medium, device or component by applying a voltage of constant polarity to a junction between dissimilar electrical conductors or semiconductors. A chilled water air conditioner can be thought of as similar to a car radiator with a fan, with hot air being cooled by being blown through a cool radiator. If the water is then later evaporated (such as from a drip tray), the amount of energy used to evaporate the water is the same as the amount of energy given up by the water vapor to the cooling equipment when it was condensed. The Microsoft Azure glossary is a short dictionary of cloud terminology for the Azure platform. Pole Position: A power receptacle on a pole. One example is vCenter Server. OCP: Overcurrent Protection, overcurrent exists when current exceeds the rating of equipment or the ampacity of a conductor. Click here to download free data center resources, checklists, cloud buyer's guides, case studies, RFP templates and disaster recovery plans. Critical Load: Computer equipment whose uptime is critical, typically supported by a UPS. The remaining water (now cooler) is collected at the bottom of the cooling tower. . Maximum Temperature Rate of Change: An ASHRAE standard established to ensure stable air temperatures. Tier II: A Tier 2 data center Includes all requirements of Tier 1, plus a guarantee of 99.741 percent availability with redundant site infrastructure capacity components. A data center is a physical server facility that securely houses critical applications, data and other digital assets. Unified Computing System: A unified computing system (UCS) is a data center architecture that integrates computing, networking and storage resources to increase efficiency and enable centralized management. CRAC: CRAC stands for computer room air conditioning. CRAC can refer to any system that controls air temperature, humidity levels and the distribution of air within data center equipment. A data center is the facility that houses the computing and networking equipment that stores data. Direct Space: Space that is being offered for lease directly from the landlord or owner of a building, as opposed to space being offered in a building by another tenant (or broker of a tenant) trying to sublet a space that has already been leased.
PDF Keysight: Design, Emulate, and Test to Accelerate Innovation UPS Power:Uninterrupted Power Supply, a critical data center component that cleans incoming dirty power from the commercial utility power and provides instantaneous back-up power when a main power source fails. For the best experience on our site, be sure to turn on Javascript in your browser. Commonly used in the analysis of airflow in data centers for optimal air conditioning design. Floor Drains: A fixture that provides an opening in a floor that drains water into a plumbing system. Most common are three-phase and single-phase. Almost all computers, including handheld computers, desktop computers, supercomputers, and even video game consoles, use an operating system of some type. May become a single-tenant property or colocation. This lesson will provide an overview of the terminology commonly referenced when describing. In a glycol system the air conditioner absorbs heat from the air and removes it from the room in the form of heated liquid water/glycol solution. There are various levels of service and various kinds of hosting offered (e.g. Within seconds of a utility outage an automatic transfer switch senses the power loss, commands the generator to start, and then transfers the electrical load to the generator. It is expected to suit the 10GBASE-T (10Gigabit Ethernet) standard, although with limitations on length if unshielded Cat 6 cable is used. MCB: Main Circuit Breaker MDF: Used in telecommunications, an MDF is commonly a steel rack that allows for the connection of networks within a plant or facility to outside cables and other equipment.
Common Datacenter Terminology - SolveForce Load Balancing: A methodology to distribute workload across multiple computers or a computer cluster, network links, center processing units, disk drives, or other resources, to achieve optimal resource utilization, maximize throughput, minimize response time, and avoid overload. WUE is calculated by dividing annual water usage by the energy consumption of the IT computing equipment. Latent Cooling: The process of condensing water out of air, then evaporating the water later. This is usually a result of the system failing to function because of an unplanned event, or because of routine maintenance. Unintended bypass airflow can occur by escaping through cable cut-outs, holes under cabinets, misplaced perforated tiles or holes in the computer room perimeter walls.
Data Centers | Meta For racks and servers this is the cooled air entering the equipment. Biometric Access: A technique used in computer and facility security to authenticate an operator using physical characteristics, i.e., facial recognition, fingerprint scans, retinal scans, iris recognition and hand geometry. The media (water or refrigerant) is run through a coil. Discharge Rate: The rate, in Amperes or Watts, at which current is delivered by a battery. In AC circuits, the magnitude of the voltage across a circuit times the current through the circuit is the apparent power. Cooling Tower: A heat rejection method that transfers heat energy from a data center or IT room to the outside atmosphere via the evaporation of water. Glossary. Emergency Power System: When regular power systems fail, a system that may include generators and other apparatus will provide backup power and lighting during an outage. Economizer: A mechanical device used to reduce energy consumption. Some of the oldest models may however use an embedded operating system that may be contained on a compact disk or other data storage device. Configura-tion and change manage-ment tools from vendors as diverse as SolarWinds and IBM give fewer admins con-trol over a greater number Data Sanitization Terminology. Lights out, refers to the fact that lights are kept off within the room. Ideally, this ratio is 1, meaning the entire air conditioner capacity is available to cool the load. It is about automating workflows, con-figuration changes, patches and updates. Reliability: Reliability is classically defined as the probability that some item will perform satisfactorily for a specified period of time under a stated set of conditions. Harmonics are often the result of the non-linear loading of the power distribution system due to the nature of solid state power supplies. In other words, power factor is the percentage of energy used compared to the energy flowing through the wires. Power Factor: The ratio of energy consumed (watts) versus the product of input voltage (volts) times input current (amps).