CRAC vs CRAH, what is Air-Side Economizer, What is chillers, What is cooling tower, what is CRAC, What is CRAH, what is the importance of cooling in data center, what is Water Side Economizer,
One of our most popular webinar presentations on data center cooling: 2007 Data Center Cooling Study: Comparing Conventional Raised Floors with Close Coupled Cooling Technology.
If you're looking for a solution, it's simple physics: Water is 3,500 times more effective at cooling than air. But, liquid cooling carries a large stigma particularly because of the large price tag. And, if you're like other Data Center Managers, the words of Jerry McGuire may be ringing in your head "Show me the money!"
To view the recorded webinar presentation, please visit http://www.42u.com/data-center-liquid-cooling-webinar.htm
When developing data center energy-use estimations, engineers must account for all sources of energy use in the facility. Most energy consumption is obvious: computers, cooling plant and related equipment, lighting, and other miscellaneous electrical loads. Designing efficient and effective data centers is a top priority for consulting engineers. Cooling is a large portion of data center energy use, second only to the IT load. Although there are several options to help maximize HVAC efficiency and minimize energy consumption, data centers come in many shapes, sizes, and configurations. By developing a deep understanding of their client’s data center HVAC requirements, consulting engineers can help maintain the necessary availability level of mission critical applications while reducing energy consumption.
Cooling Optimization 101: A Beginner's Guide to Data Center CoolingUpsite Technologies
As new personnel enter the industry, they are often bombarded with a slew of buzz words and marketing messages that would lead them to believe that data centers almost run themselves. And while monitoring and DCIM solutions are improving the management of power and cooling, an understanding of the fundamental science is crucial to both see through the hype and get the most out of management systems. More so, as the veterans in our industry start to retire, much of the basic knowledge around power and cooling is often overlooked when training their successors. This session will provide that basic knowledge and give a fundamental understanding of the power and cooling infrastructure in a data center, with an emphasis on cooling optimization. In this session, you’ll learn how to recover stranded cooling capacity, reduce operating costs, improve IT equipment reliability, and prolong the life and capacity of the data center.
4 steps to quickly improve pue through airflow managementUpsite Technologies
It’s well known that cooling typically accounts for around half of a data center's total power consumption. Given this, it's imperative that cooling is optimized to achieve a low Power Usage Effectiveness (PUE). While this too may be common knowledge, the question still remains, how can this be done quickly, with all possible benefits realized, and with the fastest return on investment?
Implementing Hot and Cold Air Containment in Existing Data CentersSchneider Electric
Containment solutions can eliminate hot spots and provide energy savings over traditional uncontained data center designs. The best containment solution for an existing facility will depend on the constraints of the facility. While ducted hot aisle containment is preferred for highest efficiency, cold aisle containment tends to be easier and more cost effective for facilities with existing raised floor air distribution. This presentation investigates the constraints, reviews all available containment methods, and provides recommendations for determining the best containment approach.
sehubungan dengan kebutuhan Internet of things (IoT) di segala bidang, maka diperlukan data center yang memenuhi standar, salah satu bagian vital pada data center yaitu bagian HVACnya, berikut saya lampirkan PPT pemaparan singkat mengenai HVAC pada data center, mohon maaf PPTnya masih acak-acak2an :D
semogaa bermanfaat
One of our most popular webinar presentations on data center cooling: 2007 Data Center Cooling Study: Comparing Conventional Raised Floors with Close Coupled Cooling Technology.
If you're looking for a solution, it's simple physics: Water is 3,500 times more effective at cooling than air. But, liquid cooling carries a large stigma particularly because of the large price tag. And, if you're like other Data Center Managers, the words of Jerry McGuire may be ringing in your head "Show me the money!"
To view the recorded webinar presentation, please visit http://www.42u.com/data-center-liquid-cooling-webinar.htm
When developing data center energy-use estimations, engineers must account for all sources of energy use in the facility. Most energy consumption is obvious: computers, cooling plant and related equipment, lighting, and other miscellaneous electrical loads. Designing efficient and effective data centers is a top priority for consulting engineers. Cooling is a large portion of data center energy use, second only to the IT load. Although there are several options to help maximize HVAC efficiency and minimize energy consumption, data centers come in many shapes, sizes, and configurations. By developing a deep understanding of their client’s data center HVAC requirements, consulting engineers can help maintain the necessary availability level of mission critical applications while reducing energy consumption.
Cooling Optimization 101: A Beginner's Guide to Data Center CoolingUpsite Technologies
As new personnel enter the industry, they are often bombarded with a slew of buzz words and marketing messages that would lead them to believe that data centers almost run themselves. And while monitoring and DCIM solutions are improving the management of power and cooling, an understanding of the fundamental science is crucial to both see through the hype and get the most out of management systems. More so, as the veterans in our industry start to retire, much of the basic knowledge around power and cooling is often overlooked when training their successors. This session will provide that basic knowledge and give a fundamental understanding of the power and cooling infrastructure in a data center, with an emphasis on cooling optimization. In this session, you’ll learn how to recover stranded cooling capacity, reduce operating costs, improve IT equipment reliability, and prolong the life and capacity of the data center.
4 steps to quickly improve pue through airflow managementUpsite Technologies
It’s well known that cooling typically accounts for around half of a data center's total power consumption. Given this, it's imperative that cooling is optimized to achieve a low Power Usage Effectiveness (PUE). While this too may be common knowledge, the question still remains, how can this be done quickly, with all possible benefits realized, and with the fastest return on investment?
Implementing Hot and Cold Air Containment in Existing Data CentersSchneider Electric
Containment solutions can eliminate hot spots and provide energy savings over traditional uncontained data center designs. The best containment solution for an existing facility will depend on the constraints of the facility. While ducted hot aisle containment is preferred for highest efficiency, cold aisle containment tends to be easier and more cost effective for facilities with existing raised floor air distribution. This presentation investigates the constraints, reviews all available containment methods, and provides recommendations for determining the best containment approach.
sehubungan dengan kebutuhan Internet of things (IoT) di segala bidang, maka diperlukan data center yang memenuhi standar, salah satu bagian vital pada data center yaitu bagian HVACnya, berikut saya lampirkan PPT pemaparan singkat mengenai HVAC pada data center, mohon maaf PPTnya masih acak-acak2an :D
semogaa bermanfaat
Data Center Cooling Efficiency: Understanding the Science of the 4 Delta T'sUpsite Technologies
While the term Delta T may be commonly used in the industry, there is much misunderstanding about where and why temperatures are changing in computer rooms. While two ΔT’s are commonly known, there are actually four different ΔT’s which contribute to the health of the data center. Understanding the sources of these differences and measuring them in your site provides insight about how to further improve the efficiency and capacity of computer room cooling.
Presented by:
Lars Strong, P.E., Senior Engineer, Upsite Technologies
Describes the basic building blocks to high availability, high density datacenter design. My team at Sun specialized in HPC datacenter design, build. We also specialized in what went into that datacenter (compute, storage, network).
The segmentation of data centers into alternating hot and cold aisles is an established best practice. A number of manufacturers are taking this premise of airflow separation a step further by marketing "containment" solutions. By containing the hot or cold aisle, the air paths have little chance to mix, presenting data center operators with both reliability and efficiency gains.
To view the recording of the webinar presentation, please visit http://www.42u.com/webinars/Aisle-Containment-Webinar/playback.htm
Determining your data center strategy is critical in this expanding world of big data, cloud and mobility. Should you build your own data center, consider a wholesale arrangement, colocate with another carrier or transfer your critical information to the cloud? Or, does some combination of these options best suit your needs? Where do you even begin when planning these large enterprise decisions?
Join Randy Ortiz, VP of Data Center Design and Engineering, from Internap as he breaks down the steps you need to take to achieve a successful outcome for your data center initiatives.
Key topics include:
*Important decision-making considerations
*Why flexibility matters
*Top trends to watch today
Gaining Data Center Cooling Efficiency Through Airflow ManagementUpsite Technologies
This presentation highlights research from Upsite Technologies regarding the latest best in data center airflow management and cooling, including steps to improvement. Originally delivered by Upsite President John Thornell at the AFCOM Boston-New England Chapter meeting.
Data Center Cooling Design - Datacenter-serverroommarlisaclark
Keep your data center cool and healthy with our smart Data Center Cooling Design which makes sure your data centers never get exhausted and work efficiently. Visit: http://www.datacenter-serverroom.com/rack-row-room-data-center-cooling
In a typical building base-load analysis will identify the server room, if one is present, at the top of the list of “out of hours” consumption. In recent years server rooms have been built nearly always with mechanical cooling. In many cases we find that the cooling plant is consuming as much energy as the servers.
David Green, Head of Workshops at the University of Cambridge, will present the Department of Engineering server room journey. He has transformed one of his large server rooms by using free cooling and cold aisle warm aisle containment and learnt a lot along the way.
Este é um documento disponibilzado pela Ashrae na internet para consultas sobre TC 9.9 para operação em Data Centers no mundo todo, esse guia fala sobre as classes e os seus limites operacionais mínimos e máximos
Data Center Floor Design - Your Layout Can Save of Kill Your PUE & Cooling Ef...Maria Demitras
Implementing data center best practices and using CFD models allowed Great Lakes to suggest a data center layout that would improve PUE and efficiency. Jason Hallenbeck, DCDC, explains the concepts behind how data center floor design can save or kill your PUE and cooling efficiency—as found in this proposal. Find Jason presenting at the BICSI Fall Conference on September 14th at 1:30 pm.
The data center market has expanded dramatically in the past few years, and it doesn’t show signs of slowing down. Many clients and building owners are requesting modular data centers, which can be placed anywhere data capacity is needed. Modular data centers can help cash-strapped building owners add a new data center (or more capacity) to their site, and can assist facilities with unplanned outages, such as disruptions due to storms. Owners look to modular data centers to accelerate the “floor ready” date as compared to a traditional brick and mortar.
Clarifying ASHRAE's Recommended Vs. Allowable Temperature Envelopes and How t...Upsite Technologies
The topic of raising temperatures in data centers used to be met with much criticism in the industry, but in recent years has become more accepted. A big driver for this acceptance has been ASHRAE’s expanded envelope for recommended and allowable server inlet temperatures. However, while this has eased the discussion, there are still some questions that have been left unanswered. What’s the difference between recommended and allowable? Which one is best to use? What steps must be taken to safely raise set points? How do you ensure servers are still adequately cooled? What if you have different server types (A1, A2, A3, A4)? This presentation will examine these questions to give a clearer understanding of ASHRAE’s recommended and allowable guidelines. Also covered will be an explanation on how, in some cases, it is possible to raise cooling control set points without raising server inlet temperatures.
This Slide's will help those guys who are looking for to study the Data Center Design . In these Slide's, you can understand the concept of raised floor, importance of raised floor, why raised floor is needed in a Data Center, and many more concepts ..
Hope it will gave you the good understanding to related topic.
The purpose of this presentation is to discuss the underlying science behind data center airflow management and how applying best practices can make the greatest impact on the computer room, both in terms of energy savings and capacity.
Presented by:
Lars Strong, P.E., Senior Engineer, Upsite Technologies
Mark Seymour, Director, Future Facilities.
Close Control Unit Or Precision Air conditioner #closecontrolunit #...serverroomCtrltech
Close Control Unit Or Precision Air conditioner
#closecontrolunit #coolingsolution
#Serverroomairconditioner
https://www.datacenter-serverroom.com/close-control-unit-ccu-precision-air-crac-airedale-liebert
Close control air conditioner or Computer room air conditioner (CRAC) or Server room air conditioner. Close control unit not only maintains temperature but also humidity together to precise set level. Data center Cooling is most important factor for its operations. Selecting right type of cooling system is most critical decision in data center designing. Reliability of close control unit will directly related uptime of datacenter. To make cooling system more reliable, addition standby units can be install.
Close control air conditioner ,Cooling Solution, Precision air conditioning system, Server room air,Computer room air conditioner, Server room air conditioner, Close Control Unit.
using different refrigerants as working fluid,the variation in the dimensional parameters of evaporator ,compressor,condenser and expansion device are shown.
Data Center Cooling Efficiency: Understanding the Science of the 4 Delta T'sUpsite Technologies
While the term Delta T may be commonly used in the industry, there is much misunderstanding about where and why temperatures are changing in computer rooms. While two ΔT’s are commonly known, there are actually four different ΔT’s which contribute to the health of the data center. Understanding the sources of these differences and measuring them in your site provides insight about how to further improve the efficiency and capacity of computer room cooling.
Presented by:
Lars Strong, P.E., Senior Engineer, Upsite Technologies
Describes the basic building blocks to high availability, high density datacenter design. My team at Sun specialized in HPC datacenter design, build. We also specialized in what went into that datacenter (compute, storage, network).
The segmentation of data centers into alternating hot and cold aisles is an established best practice. A number of manufacturers are taking this premise of airflow separation a step further by marketing "containment" solutions. By containing the hot or cold aisle, the air paths have little chance to mix, presenting data center operators with both reliability and efficiency gains.
To view the recording of the webinar presentation, please visit http://www.42u.com/webinars/Aisle-Containment-Webinar/playback.htm
Determining your data center strategy is critical in this expanding world of big data, cloud and mobility. Should you build your own data center, consider a wholesale arrangement, colocate with another carrier or transfer your critical information to the cloud? Or, does some combination of these options best suit your needs? Where do you even begin when planning these large enterprise decisions?
Join Randy Ortiz, VP of Data Center Design and Engineering, from Internap as he breaks down the steps you need to take to achieve a successful outcome for your data center initiatives.
Key topics include:
*Important decision-making considerations
*Why flexibility matters
*Top trends to watch today
Gaining Data Center Cooling Efficiency Through Airflow ManagementUpsite Technologies
This presentation highlights research from Upsite Technologies regarding the latest best in data center airflow management and cooling, including steps to improvement. Originally delivered by Upsite President John Thornell at the AFCOM Boston-New England Chapter meeting.
Data Center Cooling Design - Datacenter-serverroommarlisaclark
Keep your data center cool and healthy with our smart Data Center Cooling Design which makes sure your data centers never get exhausted and work efficiently. Visit: http://www.datacenter-serverroom.com/rack-row-room-data-center-cooling
In a typical building base-load analysis will identify the server room, if one is present, at the top of the list of “out of hours” consumption. In recent years server rooms have been built nearly always with mechanical cooling. In many cases we find that the cooling plant is consuming as much energy as the servers.
David Green, Head of Workshops at the University of Cambridge, will present the Department of Engineering server room journey. He has transformed one of his large server rooms by using free cooling and cold aisle warm aisle containment and learnt a lot along the way.
Este é um documento disponibilzado pela Ashrae na internet para consultas sobre TC 9.9 para operação em Data Centers no mundo todo, esse guia fala sobre as classes e os seus limites operacionais mínimos e máximos
Data Center Floor Design - Your Layout Can Save of Kill Your PUE & Cooling Ef...Maria Demitras
Implementing data center best practices and using CFD models allowed Great Lakes to suggest a data center layout that would improve PUE and efficiency. Jason Hallenbeck, DCDC, explains the concepts behind how data center floor design can save or kill your PUE and cooling efficiency—as found in this proposal. Find Jason presenting at the BICSI Fall Conference on September 14th at 1:30 pm.
The data center market has expanded dramatically in the past few years, and it doesn’t show signs of slowing down. Many clients and building owners are requesting modular data centers, which can be placed anywhere data capacity is needed. Modular data centers can help cash-strapped building owners add a new data center (or more capacity) to their site, and can assist facilities with unplanned outages, such as disruptions due to storms. Owners look to modular data centers to accelerate the “floor ready” date as compared to a traditional brick and mortar.
Clarifying ASHRAE's Recommended Vs. Allowable Temperature Envelopes and How t...Upsite Technologies
The topic of raising temperatures in data centers used to be met with much criticism in the industry, but in recent years has become more accepted. A big driver for this acceptance has been ASHRAE’s expanded envelope for recommended and allowable server inlet temperatures. However, while this has eased the discussion, there are still some questions that have been left unanswered. What’s the difference between recommended and allowable? Which one is best to use? What steps must be taken to safely raise set points? How do you ensure servers are still adequately cooled? What if you have different server types (A1, A2, A3, A4)? This presentation will examine these questions to give a clearer understanding of ASHRAE’s recommended and allowable guidelines. Also covered will be an explanation on how, in some cases, it is possible to raise cooling control set points without raising server inlet temperatures.
This Slide's will help those guys who are looking for to study the Data Center Design . In these Slide's, you can understand the concept of raised floor, importance of raised floor, why raised floor is needed in a Data Center, and many more concepts ..
Hope it will gave you the good understanding to related topic.
The purpose of this presentation is to discuss the underlying science behind data center airflow management and how applying best practices can make the greatest impact on the computer room, both in terms of energy savings and capacity.
Presented by:
Lars Strong, P.E., Senior Engineer, Upsite Technologies
Mark Seymour, Director, Future Facilities.
Close Control Unit Or Precision Air conditioner #closecontrolunit #...serverroomCtrltech
Close Control Unit Or Precision Air conditioner
#closecontrolunit #coolingsolution
#Serverroomairconditioner
https://www.datacenter-serverroom.com/close-control-unit-ccu-precision-air-crac-airedale-liebert
Close control air conditioner or Computer room air conditioner (CRAC) or Server room air conditioner. Close control unit not only maintains temperature but also humidity together to precise set level. Data center Cooling is most important factor for its operations. Selecting right type of cooling system is most critical decision in data center designing. Reliability of close control unit will directly related uptime of datacenter. To make cooling system more reliable, addition standby units can be install.
Close control air conditioner ,Cooling Solution, Precision air conditioning system, Server room air,Computer room air conditioner, Server room air conditioner, Close Control Unit.
using different refrigerants as working fluid,the variation in the dimensional parameters of evaporator ,compressor,condenser and expansion device are shown.
ENERGY AUDIT presentationin power system .pptxReshevSharma
An energy audit is a systematic process of evaluating and analyzing energy usage in a building, facility, or industrial process to identify opportunities for energy efficiency improvements, cost savings, and environmental sustainability. The goal of an energy audit is to assess energy consumption patterns, identify areas of inefficiency or waste, and recommend measures to optimize energy usage and reduce overall energy consumption.
Here's an overview of the typical steps involved in conducting an energy audit:
1. **Pre-Audit Planning:**
Define the scope and objectives of the energy audit, including the areas or systems to be evaluated, the level of detail required, and the desired outcomes. Identify key stakeholders, establish audit goals, and gather relevant documentation, such as utility bills, building plans, and equipment specifications.
2. **Data Collection and Analysis:**
Collect comprehensive data on energy consumption, including utility bills, meter readings, and operational data
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Vapor compression refrigeration cycle, Refrigerants,
Coefficient of performance, Capacity, Factors affecting Refrigeration and Air conditioning
system performance and savings opportunities.
Vapor absorption refrigeration system: Working principle, Types and comparison with
vapor compression system, Saving potential
Data Center Power Infrastructure, Data Center Power Infrastructure explained, how is power distributed in the data center, what is the use of the generator in the data center
Compliance policies and procedures followed in data centersLivin Jose
compliance for data center, Compliance policies and procedures followed in data centers, policies and procedures in data center, standards in data center, data center standard policies
What are cloud service models, advantage of IAAS, advantages of PAAS, advantage of SAAS, What are cloud service models, What is IAAS, What is PAAS, what is SAAS
Community Cloud, Hybrid Cloud, Multi Cloud, Private cloud, Public cloud, What are the types of cloud computing, what is multi cloud, what is hybrid cloud, what is the difference between multi cloud and hybrid cloud
Data center power availability provisioningLivin Jose
Data center power availability provisioning, Power provision - Concurrently maintainable, Power provision - Fault tolerant, Power provision - Single Path, Power provision - Single path with resilience
What is data center availability modes slideLivin Jose
What is data center availability modes slide, types of data center availability modes, What is uptime institute data center certificates, What is data center availability modes slide,EN 50600 Availability classes (1-4), TIA 942-B Ratings (1-4), 10 Syska Hennessy Criticality Levels, ANSI/BICSI Classes (F0-F4), N, N+1, 2N, 2(N+1) for data centers
Understanding the Different Types of Data Center, What are the types of data center, What is Enterprise data centre, what is Managed hosting data center, what is Colocation data centre, what is Cloud hosting data centre
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Search and Society: Reimagining Information Access for Radical FuturesBhaskar Mitra
The field of Information retrieval (IR) is currently undergoing a transformative shift, at least partly due to the emerging applications of generative AI to information access. In this talk, we will deliberate on the sociotechnical implications of generative AI for information access. We will argue that there is both a critical necessity and an exciting opportunity for the IR community to re-center our research agendas on societal needs while dismantling the artificial separation between the work on fairness, accountability, transparency, and ethics in IR and the rest of IR research. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as democratic theory and critical theory, and should be co-developed with social science scholars, legal scholars, civil rights and social justice activists, and artists, among others.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Key Trends Shaping the Future of Infrastructure.pdf
Data center cooling infrastructure slide
1. Data center Cooling Infrastructure
The high-density deployments of modern data centers have intensive power
demands, but much of that power doesn’t actually go to the servers and computing
equipment itself. Instead, it goes to the cooling equipment that prevents those
systems from overheating. Data center cooling refers to a collective equipment,
tools, techniques and process that ensures an idle operating temperature within a
data center facility. In general, temperatures should not fall below 50°F or rise above
82°F in a server room(10°C - 27.7°C) whereas optimal temperatures range between
68° and 71° Fahrenheit(20°C - 21.6°C). To ensure reliable operation and the longest
possible life from components you need to ensure that the temperature stays within
that band. Even a few degrees too hot can blow a server chip. The cost of a
catastrophic server failure can be considerable. Think how much money you would
lose if your servers went down. There is the cost of replacement, but think also of
lost e-commerce business, lost customer details, wasted staff time, and all the other
associated costs.
IT equipment consumes electricity and leaves behind heat as its “waste product”. On
my previous article we have seen that power is the biggest part in a data center. Do
you know that your cooling infrastructure is the biggest consumer of this power. This
may take up to 40 percent of all the power going into your data center and you know
the heat generated by servers in data centers is currently ten times greater than the
heat generated by them 10 years ago. So it’s huge , you can imagine, right.
The simplest way to define cold is nothing the absence of heat. Generally there are
two types of heat removal methods used in a data center environment,
• Air Cooling
• Liquid Cooling(typically water or some form of refrigerant)
Air cooling is a standard method of system cooling used to method of dissipate heat.
The object being cooled will have a flow of air moving over its surface. Most air
cooling systems use a combination of fans and heat sinks, which exchanges heat with
air.
Liquid Cooling is the first method within liquid-based cooling which is “water-cooled
racks.” This method uses water to cool along the hot side of the cabinet bringing the
temperature down. The water is confined within basins and flows from tower pumps
through pipes alongside the servers, but does not touch the components of the
servers. The water-cooled racks system works very well, but still has the dangerous
2. possibilities of leaks. We can say that this is not a largely adopted solution for cooling
do you know why?
The answer is pretty simple: Water + Electricity = Disaster.
However this is being used on some industry level and we will look into those details
in next article.
Immersion Cooling
The last method we will go over is “liquid immersion cooling” system. It is the
practice of submerging computer components (or full servers) in a thermally, but not
electrically, conductive liquid (dielectric coolant). Green revolution cooling(GRC) has
patented this method of cooling technology.
Before proceeding further I want you to understand some of the fundamental
principles of cooling which are as below,
Compression
• Gases are compressible - liquids are not
• Gases get hot when compressed
Heat flow
• Heat flows from high temperature to low
• When a liquid is heated it vaporizes into a gas
• When a gas is cooled it condenses into a liquid
• Lowering the pressure above a liquid reduces its boiling point, and increasing
the pressure raises it
Fluid flow
• Fluids flow from high pressure to low
Cooling System Components in a data center
As you know the output from a machine is heat and we need to supply cold as the
input for these machines. Let us see and understand the equipment used in a chiller
based cooling systems and understand the flow.
3. The Chiller
Chillers are the cooling machines used to lower the temperature of equipment in
data centre environments (uses the basic refrigerant cycle operation). The function
of a chiller is to produce chilled water (water refrigerated to about 8 -15°C [46 -
59°F]). Chilled water is pumped in pipes from the chiller to the Computer Room Air
Handlers (CRAH) units located in the IT environment.
4. Chillers use either a vapor-compression or absorption refrigerant cycle to cool a fluid
for heat transfer. The working principles are relying on three basic principles:
I. First - When a liquid is heated, it vaporizes into a gas, and when a gas is
cooled, it condenses into a liquid
II. Second - Lowering the pressure above a liquid reduces its boiling point and
increasing the pressure raises it
III. Third - Heat always flows from hot to cold
There are three main types of chillers distinguished by their use of water or air to
reject heat:
• Water-cooled chillers – This model is have a cooling tower, thus they feature
higher efficiency than air-cooled chillers. Water-cooled chillers are more
efficient because they condense depending on the ambient temperature bulb
temperature, which is lower than the ambient dry bulb temperature. The
lower a chiller condenses, the more efficient it is.
• Glycol-cooled chillers - Glycol chillers are industrial refrigeration systems that
use a type of antifreeze called glycol, mixed with water, to lower the freezing
point in the application of the chilling system.
• Air-cooled chillers - Air cooled and water cooled and chillers work in a rather
similar manner. They both have an evaporator, compressor, condenser and an
expansion valve. The main difference is that one uses air to fuel condenser
cooling and the other uses water.
If anyone interested to understand more in this concept please review the article by
Carrier
Cooling tower
A cooling tower is a heat rejection device that rejects waste heat to the atmosphere
through the cooling of a water stream to a lower temperature(atmosphere). Cooling
tower heat rejection process is termed “evaporative cooling”. Cooling towers
minimize the thermal pollution of natural water heat sinks and allow the reuse of
circulating water. The heat from the water stream transferred to the air stream
raises the air's temperature and it relative humidity to 100%: this air is then
discharged to the atmosphere.
Cooling towers minimize the thermal pollution of natural water heat sinks and allow
the reuse of circulating water. A cooling tower extracts waste heat from the
condenser water loop to the atmosphere through the cooling of a water stream to a
lower temperature.
5. The cooler water at the bottom of the tower is collected and sent back into the
condenser water loop via a pump package. Evaporative heat rejection devices such
as cooling towers are commonly used to provide significantly lower water
temperatures than achievable with "air cooled" or "dry" heat rejection devices,
thereby achieving more cost-effective and energy efficient system operation.
Computer room air conditioning (CRAC)
A computer room air conditioning (CRAC) unit is a device that monitors and
maintains the temperature, air distribution and humidity in a network room or data
center. CRAC is also known as Precision Air Conditioner or Close Control Air
Conditioner or Close Control Unit (CCU) or server room air conditioner. A CRAC unit
is exactly like the air conditioner at your home. It has direct expansion(DX)
refrigeration cycle built into the unit. This means that the compressors required to
power the refrigeration cycle are also located within the unit. The temperature of
the coil is maintained with the help of a refrigerant. A CRAC is often thought of as
having an internal compressor, thus not needing the support of a centralized chilled
water system.
6. There are a variety of ways that the CRAC units can be situated. One CRAC setup that
has been successful is the process of cooling air and having it dispensed through an
elevated floor. The air rises through the perforated sections, forming cold aisles. The
cold air flows through the racks where it picks up heat before exiting from the rear of
the racks. The warm exit air forms hot aisles behind the racks, and the hot air returns
to the CRAC intakes, which are positioned above the floor.
Computer room air handler(CRAH)
A computer room air handler (CRAH) is a device used frequently in data centers to
deal with the heat produced by equipment. Unlike a computer room air conditioning
(CRAC) unit that uses mechanical refrigeration to cool the air introduced to a data
center, a CRAH uses fans, cooling coils and a water-chiller system to remove heat. A
CRAH is similar to a chilled water air handling unit found in most of these high rise
commercial office buildings. Here, the cooling is accomplished by blowing air over
the cooling coil filled with the chilled water. These chilled water in turn, are supplied
to the CRAHs by a chilled water plant, otherwise called as, the chiller. These CRAHs
can have VFDs that modulate fan speed to maintain a set static pressure either under
floor or in the overhead ducts.
7. Now that we understand how air circulates in the data center, we must understand
the difference between air handling and air conditioning. Anyone who pays their
power-bill at home knows that the cost of cooling/heating a home is one of the
highest costs associated with power. The same holds true for data centers. Cooling a
data center, which houses equipment that generates substantial heat, is very
expensive. Because of this, data centers have turned to what is call air-side
economization. What that means is that when the ambient outside temperature is
within a certain threshold, the air is then ‘handled’ and pulled into the facility and
pushed down in the pressurized sub-floor. The handled air flows through the data
center as traditional air conditioned air would. However, in this scenario, the
facilities with CRAH units are actually using ‘free’ air and the cost to cool the facility
significantly drops.
The efficiency of this method obviously depends on climate, In many Europe and US
market we can use this technology about 60% of the year(during the winter months).
This saves immense power cost, which in turn lowers PUE and drives the cost per
kilowatt down for you. Overall, the utilization of air-handling and air-side
economization rather than traditional air-conditioning is an all-around innovation
win for the industry and its clients.
Water Side Economizer
Using this economizer, there are no noticeable changes on the data center floor. The
same collection of air handlers, raised floors, and fans move air as they normally
would. The change occurs behind the scenes in the production of the chilled air and
the removal of waste heat. Users with an existing chilled water infrastructure can
8. accomplish “free-cooling” via a supplemental heat exchanger called a Water-Side
Economizer.
For data centers with water- or air-cooled chilled water plants, a water-side
economizer uses the evaporative cooling capacity of a cooling tower to produce
chilled water and can be used instead of the chiller during the winter months. (A
chiller is a machine that removes heat from a liquid via a vapor-compression or
absorption refrigeration cycle. This liquid can then be circulated through a heat
exchanger to cool air or equipment as required.) Water-side economizer operation
depends on ambient conditions. The outside air must sufficiently cool the condenser
water to allow for proper heat exchange between the two loops.
Water-side economizers can be integrated with the chiller or non-integrated.
Integrated water-side economizers are the better option because they can pre-cool
water before it reaches the chiller. Non-integrated water-side economizers run in
place of the chiller when conditions allow. Water-side economizers offer cooling
redundancy because they can provide chilled water in the event that a chiller goes
offline. This can reduce the risk of data center down time. During water-side
economizer operation, costs of a chilled water plant are reduced by up to 70%.
9. Air-Side Economizer
An air-side economizer(see below picture) brings outside air into a building and
distributes it to the servers. Instead of being re-circulated and cooled, the exhaust air
from the servers is simply directed outside. If the outside air is particularly cold, the
economizer may mix it with the exhaust air so its temperature and humidity fall
within the desired range for the equipment. The air-side economizer is integrated
into a central air handling system with ducting for both intake and exhaust; its filters
reduce the amount of particulate matter, or contaminants, that are brought into the
data center.
Because data centers must be cooled 24/7, 365 days per year, air-side economizers
may even make sense in hot climates, where they can take advantage of cooler
evening or winter air temperatures. For various regions of the United States, Figure
14 shows the number of hours per year with ideal conditions for an air-side
economizer.
Intel IT conducted a proof-of-concept test that used an air-side economizer to cool
servers with 100% outside air at temperatures of up to 90°F. Intel estimates that a
500kW facility will save $144,000 annually and that a 10MW facility will save $2.87
million annually. Also, the company found no significant difference between failure
rates using outside air and an HVAC system. Some of the things has to be considered
10. is control systems are very important to the operation of the air-side economizer and
must be properly maintained. Excessive humidity control can cut into the savings
achieved by the economizer. In certain geographic locations, for example, air can be
very cool but very dry, and the system may spend excessive energy humidifying the
air. Users will need to consider ASHRAE's recommendations, studies of their ambient
climate, and their humidity preferences before considering implementation. If
desired humidity ranges are too restrictive, net energy savings from an economizer
can be limited. Proper management and controls are imperative to ensure that
correct air volume, temperature and humidity are introduced.
Air-side and water-side economizers offer the potential for significant energy savings
by using the ambient environment to augment or replace mechanical air
conditioning. Depending on your location, environment, data center design and
existing infrastructure, implementing a “free cooling” strategy can be extremely
challenging. And the objective of economization is to run those less or run those with
less load.
By this we have covered all critical mechanical equipment’s that are involved in a
data center cooling infrastructure.
Credits : www.energystar.gov and www.42u.com
11. Have a comment or points to be reviewed? Let us grow together. Feel free to
comment.