Virtualization_IoT_Cloud_Presentation_ .pptx

It's about virtualization in iot

1. Virtualization in IoT and Cloud Computing Transforming Digital Systems

2. Introduction Virtualization enables running multiple systems on a single hardware. It shifts from rigid one-to-one hardware-software relationships to flexible, efficient systems. Foundation for both Cloud and IoT. Drives efficiency by resource sharing. Key enabler for scalability.

3. Aim Explain virtualization in cloud computing and IoT, its benefits and challenges, and why it is a cornerstone of digital transformation.

4. Scope - Core concept of virtualization and the hypervisor - Role in cloud computing (types of virtualization) - Use cases in IoT and edge - Benefits and challenges - Future trends Helps organizations optimize resources. Supports diverse applications simultaneously.

5. What is Virtualization? Virtualization abstracts physical resources into virtual versions. The hypervisor manages VMs by allocating CPU, memory, and network resources. The hypervisor sits between the physical hardware and the virtual machines (VMs), managing and allocating the physical resources like CPU cycles, memory, and network bandwidth to each VM. Type 1: Bare-metal hypervisors (VMware ESXi , Hyper-V). This hypervisor runs directly on the host's physical hardware. It acts as a lightweight operating system itself, with direct access to the hardware.

6. Type 2: Hosted hypervisors ( VirtualBox , VMware Workstation). Hypervisors are the backbone of virtualization. Provide isolation, security, and flexibility. This hypervisor runs as an application on top of an existing host operating system (like Windows or macOS ). It's typically used for desktop virtualization, development, and testing

7. Virtualization in Cloud Computing Server Virtualization: Partition physical servers into VMs. Network Virtualization: Create software-defined networks. Storage Virtualization: Pool storage into a single resource. Desktop & App Virtualization: Run desktops/apps on centralized servers. Cloud wouldn’t exist without virtualization. Different layers abstract compute, network, and storage .

8. Cloud computing is a service delivery model, but virtualization is the enabling technology that makes it work. A cloud provider's data center is a massive collection of physical servers, but what you rent are virtual machines. The key types of virtualization are categorized by the resource being virtualized.

9. Server Virtualization This is the most common form of virtualization. It involves partitioning a single physical server into multiple isolated virtual servers, known as virtual machines (VMs).

10. Each VM operates as an independent server with its own operating system (OS) and applications, even though they all share the same underlying hardware. A hypervisor (a software layer) is what makes this possible by managing and allocating the physical resources to each VM.

11. Example : A company has one powerful physical server. Instead of dedicating it to a single application, they use a hypervisor like VMware ESXi or Microsoft Hyper-V to create five VMs. One VM runs a web server on Linux, another runs a database on Windows Server, and the remaining three are used for application testing. This increases the server's utilization from maybe 15% to over 80%.

12. Network Virtualization

13. Network virtualization abstracts the physical network infrastructure, such as switches, routers, and firewalls, into a software-defined layer. This creates Software-Defined Networking (SDN), allowing administrators to manage and configure network resources and traffic flow using software. This provides greater flexibility and control than traditional, physical networks

14. Example: A large corporation with multiple offices needs to create a secure, isolated network for its finance department. Instead of buying and configuring new physical routers and firewalls, an administrator uses network virtualization to create a Virtual Local Area Network (VLAN). This VLAN logically segments the finance department's traffic from the rest of the company's network on the same physical hardware, ensuring security and compliance. Public cloud providers like Amazon Web Services (AWS ) and Microsoft Azure heavily use this to create isolated virtual networks for their customers.

15. Storage Virtualization

16. This technology pools physical storage from multiple devices into a single, unified virtual storage resource. It separates the logical view of storage from the physical devices. This makes it easier to manage storage capacity, allocate space to servers as needed, and perform data management tasks like backups and disaster recovery.

17. Example: A data center has several different storage arrays from various vendors. By implementing storage virtualization, an administrator can combine all the available storage into a single storage pool . When a new VM needs 1 TB of storage, the administrator can simply allocate it from this pool without worrying about which specific physical disk or array the data resides on. This simplifies management and improves storage utilization.

18. De sktop and Application Virtualization

19. This type of virtualization separates a desktop environment or a specific application from the physical device used to access it. The desktop or application runs on a centralized server, and the user's device (like a laptop or a thin client) acts as a display, streaming the interface to them

20. Example : Desktop Virtualization : A call center provides its employees with thin client devices. These devices don't have a hard drive or a powerful processor. Instead, they connect to a centralized server farm running a Virtual Desktop Infrastructure (VDI). Each employee accesses their own secure, personalized desktop environment hosted on the server.

21. Example: Application Virtualization : A company needs to run an old legacy application that is only compatible with Windows XP. Instead of maintaining an outdated operating system, they use a tool like VMware ThinApp to package the application with its dependencies into a single executable file. This virtualized application can then run on a modern Windows 10 or 11 machine without any installation, as it's isolated from the host OS. This is different from a VM because it only virtualizes the application, not the entire operating system.

22. Aspect Server Virtualization Network Virtualization Storage Virtualization Desktop Virtualization Application Virtualization Definition Divides one physical server into multiple virtual servers Combines/splits networks into multiple virtual networks Pools physical storage into a single virtual resource Runs virtual desktops separate from physical device Runs apps in isolated, virtualized environments Layer of Operation Hardware/Hypervisor Network layer Storage subsystem Desktop OS Application runtime Primary Goal Improve server utilization Improve network efficiency & flexibility Simplify storage management Provide remote desktop environments Deliver apps without full installation Key Technology Hypervisors (VMware ESXi, Hyper-V) VLANs, SDN, NFV SAN, NAS, Virtual Volumes VDI (Citrix, VMware Horizon) App layering, containers Resources Virtualized CPU, RAM, server OS Switches, routers, bandwidth Disks, arrays, storage pools OS, user desktop Application binaries, runtimes Example Use Case Running multiple OS on one server Multi-tenant networks in cloud Unified storage for databases Cloud-based remote desktops Running MS Word without full install End Users IT admins, data centers Network engineers, cloud providers Storage admins Employees, remote workers End users needing apps only

23. Security VM isolation Virtual firewalls, segmentation Data redundancy, encryption Centralized control Sandboxing apps Scalability Easy to scale VMs Highly scalable (cloud-native) Highly scalable (storage pools) Scales with users Scales with app demand Dependency Server hardware Network hardware/software Storage hardware Client-server setup Host OS/application server Benefits Cost savings, flexibility Security, agility, efficiency Simplified management, scalability Centralized control, flexibility Easy app delivery, reduced conflicts Limitations Needs powerful servers High complexity Storage bottlenecks possible Needs network connectivity Limited to supported apps Aspect Server Virtualization Network Virtualization Storage Virtualization Desktop Virtualization Application Virtualization

24. Virtualization in IoT - Edge virtualization enables low-latency processing. - Manages diverse IoT devices through abstraction. - Maximizes resource use with containers. Examples: Smart factories, smart cities. Edge computing relies heavily on virtualization. Containers make IoT resource use highly efficient.

25. Benefits - Cost efficiency by reducing physical hardware. - Improved resource utilization. - Agility: Quick provisioning and scaling. - Enhanced security with VM isolation. Cost savings apply to CAPEX and OPEX. Improves time-to-market for businesses.

26. Challenges - Performance overhead in high-demand workloads. - Complexity in managing large environments. - Hypervisor security vulnerabilities. - Vendor lock-in risks. Security risks increase with scale. Operational overhead requires trained staff.

27. Solutions to Challenges - Hardware-assisted virtualization & paravirtualization. - Centralized management & automation. - Hypervisor hardening & micro-segmentation. - Plan exit strategies to avoid vendor lock-in.

28. Future Trends - Containers (Docker, Kubernetes). - Unikernels for lightweight computing. - AI-driven resource management. - Hardware-accelerated virtualization. Edge adoption pushing unikernels and micro-VMs. AI-driven optimizations improving real-time workload balancing.

29. Conclusion Virtualization underpins cloud and IoT by enabling scalable, flexible, and cost-efficient systems. It drives the shift to software-defined, interconnected infrastructures. Virtualization is no longer optional; it’s essential. Future-ready businesses are embracing it at all levels.