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2. Objectives Describe different technologies that can be used to deliver virtualization services Understand the range of tasks performed by virtualization services Describe the advantages and disadvantages of virtual platforms 2.5 Virtualization Services 155

3. Multiple operating systems can be installed and run simultaneously on a single computer Computer platform (host) Hypervisor virtualization software Guest operating system(s) Virtualization Basics 2.5 Virtualization Services 155

4. Hypervisor Emulation Guest OS support Resource management Networking / data sharing Security 2.5 Virtualization Services 156

5. Receive any alerts or alarms generated by the VMs or hypervisors Allow the configuration and starting or stopping of VMs remotely Provide tools for managing the virtual network Deploy new VM images or move VMs between physical servers Deploy security patches and updates to hypervisors and VMs Set up disaster recovery plans and failover / redundant services and resources Monitor and optimize performance Management Interface 2.5 Virtualization Services 157

6. CPU o Symmetric Multiprocessing (SMP) o Multi-core o HyperThreading System memory Disk space o Disk images o Snapshots Video Resource Allocation 2.5 Virtualization Services 157

7. Host versus Bare Metal Hypervisors Guest OS / host-based o “Type 2” o Hypervisor software installed onto host OS Bare metal o “Type 1” o Directly installed on host PC o Directly manages hardware resources 2.5 Virtualization Services 158

8. Resource Requirements CPU compatibility support o VT / AMD-V o Second Level Address Translations (SLAT) − Intel Extended Page Table (EPT) − AMD Rapid Virtualization Indexing (RVI) System RAM Disk space 2.5 Virtualization Services 160

9. Virtual Networks NIC emulation Network types o VM-only network o Integration with host network Virtual switch Hyper-V switch types o External o Internal o Private 2.5 Virtualization Services 161

10. Guest OS platforms o Virtual labs o Legacy software support o Software development o Training Server consolidation Virtual Desktop Infrastructure (VDI) Application virtualization Terminal services Purposes of Virtual Machines 2.5 Virtualization Services 163

11. OS passes control of physically locating data on disks to a virtualized layer Data de-duplication Energy efficient storage hierarchies o Online o Nearline o Offline o MAID / power-managed RAID Storage Virtualization 2.5 Virtualization Services 165

12. Running costs o Server consolidation o Thin clients Centralized administration Deployment Disaster recovery Virtualization “Pros” 2.5 Virtualization Services 165

13. Performance and host elasticity o Overutilization of host and / or network infrastructure Host security and availability o Single Point of Failure o Denial of Service Virtualization “Cons” 2.5 Virtualization Services 166

14. Review Describe different technologies that can be used to deliver virtualization services Understand the range of tasks performed by virtualization services Describe the advantages and disadvantages of virtual platforms 2.5 Virtualization Services 168

15. Labs Lab 5 / Installing a Linux VM 2.5 Virtualization Services