Summary: Virtual Data Center

Read the summary and the most important questions on Virtual Data Center

• 1 Week 1: Introductie

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• What are the different virtual resources?

  • Virtual disks (SCSI, NFS)
    
  • Virtual Ethernet
  • Virtual Serial adapter (USB)
  • Virtual graphic card
  • Virtual Printer

• What are the goals of virtualization?

  • Add a layer of abstraction between the applications and the hardware
    
  • Enable a reduction in costs and complexity
  • Provide the isolation of computer resources for improved reliability and security
  • Improve service levels and the quality of service
  • Better align IT processes with business goals (more flexible)
  • Eliminate redundancy in, and maximize the utilization of IT infrastructures

• What are the two types of virtualization?

  1. Bare Metal / native (Type I)
  

  • Directly on the hardware

  2. Hosted (Type II)
  
  

  • Within an operating system

• What is the hypervisor footprint?

  • ESXi 3.5   - 46.01 MB
    
  • ESXi 4.0  - 59.99 MB
    
  • ESXi 4.1   - 85.19 MB
    
  • ESXi 5.0  - 132.75 MB
    
  • ESXi 5.1   - 125.85 MB
    
  • ESXi 5.5  - 151.98  MB
    
  • ESXi 6.0  - 154.90 MB
    
  • ESXi 6.5  - 135.39 MB
    

• What are the performance features?

  • Benchmarking
    
  • Methods
  • Metrics
  • Processing time
  • Scheduler
  • Memory usage
  • Networking efficiency
  • Storage efficiency
  • Pass-through

• What are the compatibility features?

  • Hardware
    
  • CPU architecture (x86, x64, itanium)
  • AMD-V vs. Intel VT
  • Backward compatible
  • Utilities
  • Guides
  • Community support (HW & SW)
  • Supported Guest and Host OS

• What are the license costs?

  Related to:
  

  • Hosts (per socket)
  • VM (license concurrent VM's)
  • Volume license (MS)
  • License models (VMWare: Std, E, E+)
  • Management
  • Calculators

• What are the different design components?

  • Server
    
  • Network
  • Backup
  • Security

• What is the requirement of Tier differentiation?

  Tier 1: Mission-critical applications
  Tier 2: Business-critical applications
  Tier 3: Business-support applications  
  

• What are the infrastructure requirements of Tier 1 (Mission-critical applications)?

  • Continuous availability
    
  • Service level management
  • Server/storage management