VirtualizationWhat is it?What is it good for?What is it not so good for?
ServerA physical computer, usually with hardwaredesigned for high performance and availability.Web ServerEmail ServerData...
Operating SystemSoftware platform upon which applications “run”and which enables and controls access tohardware.ExamplesW...
MemoryCPUNetworkingStorageTraditional Server(Logical Representation)
ServiceA program that allows clients (users or otherservices) to do work.Apache – serves web pages to clientsMySQL – sto...
Virtualization Layer(hypervisor)Software that runs between physical server(host) and virtual machines (guests).
Virtual Machine(Virtual Server)A computer (CPU, memory, networking, storage)created and running entirely in software.
SAN(Storage Area Network)A pile of big, fast hard drives and a system toshare them across a very fast network.
Why Virtualize?Efficiency – reduced costsHardware (servers, network infrastructure, storage, etc.)Real estate (rack space...
Typical Server Workload
Why Virtualize?Efficiency – reduced costsPortability
Why Virtualize?Efficiency – reduced costsPortabilityAvailability
Why Virtualize?Efficiency – reduced costsPortabilityAvailabilityManageabilityFaster deployment
What dark side?
Server “sprawl”Performance issuesStorageCPUSecurity
CPAP.com Introduction to Virtualization and Storage Area Networks
CPAP.com Introduction to Virtualization and Storage Area Networks
CPAP.com Introduction to Virtualization and Storage Area Networks
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CPAP.com Introduction to Virtualization and Storage Area Networks

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A talk by John Nelson.

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CPAP.com Introduction to Virtualization and Storage Area Networks

  1. 1. VirtualizationWhat is it?What is it good for?What is it not so good for?
  2. 2. ServerA physical computer, usually with hardwaredesigned for high performance and availability.Web ServerEmail ServerDatabase Server
  3. 3. Operating SystemSoftware platform upon which applications “run”and which enables and controls access tohardware.ExamplesWindows (XP, Vista, 7, 8)OS XLinuxCP/M
  4. 4. MemoryCPUNetworkingStorageTraditional Server(Logical Representation)
  5. 5. ServiceA program that allows clients (users or otherservices) to do work.Apache – serves web pages to clientsMySQL – stores data and answers queriesSendmail – receives and delivers email
  6. 6. Virtualization Layer(hypervisor)Software that runs between physical server(host) and virtual machines (guests).
  7. 7. Virtual Machine(Virtual Server)A computer (CPU, memory, networking, storage)created and running entirely in software.
  8. 8. SAN(Storage Area Network)A pile of big, fast hard drives and a system toshare them across a very fast network.
  9. 9. Why Virtualize?Efficiency – reduced costsHardware (servers, network infrastructure, storage, etc.)Real estate (rack space)Power and cooling
  10. 10. Typical Server Workload
  11. 11. Why Virtualize?Efficiency – reduced costsPortability
  12. 12. Why Virtualize?Efficiency – reduced costsPortabilityAvailability
  13. 13. Why Virtualize?Efficiency – reduced costsPortabilityAvailabilityManageabilityFaster deployment
  14. 14. What dark side?
  15. 15. Server “sprawl”Performance issuesStorageCPUSecurity

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