Virtualization

Agenda

  • Introduction
  • It Infrastructures
  • Cloud
  • Azure
Tue Hellstern

Trends in computer hardware

  • Mobile digital platforms
  • BYOD, Bring Your Own Device
  • Quantum Computing
  • Virtualization
  • Cloud Computing
  • Edge Computing
  • Green Computing
  • High-Performance and Power-Saving Processors
  • VR and AR
  • IoT

Trends in software platforms

  • Open-Source Software
  • Software for the Web: Java, HTML, and HTML5
  • Web Services and Service-Oriented Architecture - SOA
  • Outsourcing and Cloud Services
  • Data Science - AI and ML
  • VR and AR

Cloud

What is Cloud computing?

The cloud is sold through services

  • Referring to some IT technology
  • Sold as a product
  • Provided by a Service Provider
  • Bounded by a SLA (Service Level Agreement)
  • Abstract - independent from the hardware
  • Scalable - easy to expand or reduce (amount of users, storage, etc.)
  • Accessed via a browser or an API

Advantages

Low Cost

  • Cheap - on demand, pay-per-use formula
  • No need of expertise in security, clusters, networks, etc.
  • Accessibility
  • Multiplatform
  • No worries about updates, upgrades, new licenses
  • Easy to use / integrate

Disadvantages

Lack of control

  • Once you go cloud, you cannot come back – at least it is very difficult
  • Cannot easily switch cloud technologies
  • Legal issues: data policy, storing private data…

Who has ownership of the data?

Assignment - Oracle’s Top 10 Cloud Predictions

Oracle have released their Top 10 : Oracle Cloud Computing prediction 2020.
Read it, and discuss, in groups - The impact you think it will have on:

Business

  • The way we do business
  • Business models
  • Core competencies

People

  • Needed skills
  • Kinds of jobs
  • Types of employment
  • Lifelong education

Oracle’s Top 10 Cloud Predictions

Oracle’s Top 10 Cloud Predictions

Module 4.2

  • Prediction 1 & 5 - Automated tasks
  • Prediction 2 & 9 - Security - Cybersecurity
  • Prediction 3 & 4 & 5 & 7 & 8 - Data science - AI - ML
  • Prediction 6 & 10 - NoSQL

AWS

Amazon Web Services - what-is-cloud-computing

YoyTube video
https://www.youtube.com/embed/dH0yz-Osy54

https://aws.amazon.com/what-is-cloud-computing/

header: Cloud types

IntegrantSoftware - Cloud types

https://www.youtube.com/embed/KgL3BfAc9Cs

IaaS - Infrastructure as a Service

  • It offers everything, including the server - Network/Storage/Containers(Docker)
  • Remember - That you don’t get to own a server, but an instance of it (virtual machine)
  • Constraints - The VM cannot offer more capabilities than the physical HW

You think you have the whole server, but actually your VM can travel across servers and run where it wants

PaaS - Platform as a Service

  • Offers a runtime environment
  • The client has it’s own web applications and wants to host them (i.e. a website)
  • Container orchestration (Docker)

SaaS - Software as a Service

  • The applications are hosted in the cloud and offer a WEB interface
  • The client accesses the applications through the browser
Microsoft Azure
Different ways to manage the stack

Types of Cloud – types of implementation

Public cloud (Amazon, IBM, Googl, Microsoft Azure)

  • The client and the service provider are different organizations
  • The client doesn’t necessarily know where the servers are
  • Cheap: no investment, no HW maintenance, pay-per-use

Private

  • The company owns the data-center
  • More expensive: same as not having the cloud
  • Still using virtualization

Hybrid

  • Companies that own servers and also uses some cloud services
  • Most common solutions for companies with data centers
    • I.e. your monitoring solution is in the cloud but you own the data center
Microsoft Azure

E-conomic

  • Accounting software in the cloud
  • Design your own invoices
  • Free support
  • Safe and with backups of everything
  • API

E-conomic Developer
E-conomic DK

https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-145.pdf

Google server centers

Tour with BBC
https://www.youtube.com/embed/PBx7rgqeGG8

Google server centers

More on Data Security
https://www.youtube.com/embed/4IDD8BP2EmU

Virtualization

Virtualization basics

Virtualization is the practice of breaking down the physical infrastructure of computing and networking resources into smaller, reusable and more flexible software units.

Reasons why you should use virtualization

  • Server consolidation – Virtualization can reduce capital investments. In traditional environments it is common to dedicate each server to a single application. Virtualization enables you to consolidate all the workloads on one server, which reduces the number of physical machines
  • Virtual labs – Run a virtual machine to try out application
  • Security purposes – Uae Virtual machines for specific purposes
  • Faster server provisioning – With a virtual machine, you can quickly clone an image, master template, or existing virtual machine to get a server up and running within a few minutes
  • Cost saving – On the physical server hardware, power and cooling of the servers. Time used to administer physical servers

What is a Hypervisor?

What is a Bare-Metal Hypervisor?

What is VirtualBox?

What is Docker?

What is JupyterLab

Hypervisor

A hypervisor is a program for creating and running virtual machines.

  1. Native - Bare metal hypervisors that run guest virtual machines directly on a system's hardware, essentially behaving as an operating system - Microsoft Hyper-V, Oracle VM server
  2. Hosted hypervisors behave like traditional applications that can be started and stopped like a normal program - Microsoft Virtual PC, Oracle VirtualBox
Virtualized deployment

Links

LinkedIN Learning - Cloud

Learning Cloud Computing: Core Concepts