The document discusses virtualization and high availability. It introduces server virtualization concepts like running multiple virtual servers on one physical server. It then covers different server virtualization technologies like XenServer, VMware, and Hyper-V. The document goes on to explain the benefits of choosing Citrix XenServer for virtualization. It includes steps for installing XenServer and creating virtual machines. It also discusses using virtualization for high availability and potential future work and power savings through virtualization.

1. VIRTUALIZATION AND HIGH AVAILABILITY
5/21/2018
Presented by:
Titas Sarker
Founder (Tsoft IT)
MIT(JU),RHCE,MTCRE,MCSA,CCSP
1

2. 5/21/2018 2

3. Contents
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 Objectives
 Traditional server concept
 Virtual server concept
 Traditional VS virtual server
 Server virtualization technologies
 Reason for choose Citrix Xen server
 Installing Xen server
 Installing Xen client
 Creating virtual machine
 High availability
 Future work
 Conclusion

4. Objectives
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• To reduce hardware cost.
• To ensure reducing downtime.
• Easier to maintain virtual PC’s in one server.
• Hardware resource utilization using advanced virtual environment with virtual
networking.
• To select, install and setup open source virtualization and operating system
virtualization on commodity hardware.

5. Traditional Server Concept
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• Servers are often referred to by their function i.e. the Exchange server, the SQL
server, the File server etc.
• If the File server fills up or the Exchange server becomes overtaxed, then the
System Administrators must add in a new server.
• Unless there are multiple servers, if a service experiences a hardware failure,
then the service is down.

6. Virtual Server Concept
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• One host typically house many virtual servers (virtual machines or VMs).
Cloud
machine 2
CPU
Storage
Memory
Network
Cloud
machine 1
CPU
Storage
Memory
Network
Cloud
machine 4
CPU
Storage
Memory
Network
Cloud
machine 3
CPU
Storage
Memory
Network
Virtualization layer
Physical server
CPU Memory NetworkStorage

7. Virtual Server Concept
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• A virtual server can be serviced by one or more hosts e.g. storage, services etc.
• Virtual servers can still be referred by their functions i.e. email server, database
server etc.
• If the environment is built correctly, virtual servers will not be affected by the loss
of a host.
• Hosts may be removed and introduced to accommodate maintenance.

8. Traditional VS Virtual Server
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Cloud
machine 2
CPU
Storage
Memory
Network
Cloud
machine 1
CPU
Storage
Memory
Network
Cloud
machine 4
CPU
Storage
Memory
Network
Cloud
machine 3
CPU
Storage
Memory
Network
Virtualization layer
Physical server
CPU Memory NetworkStorage

9. Server Virtualization Technologies
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Features KVM VMware Microsoft Hyper-V Xen Server Proxmox VE
High availability   Requires Microsoft Failover
clustering, limited guest OS
support
 
Flexible authentication     
Single-view for Management
(centralized control)
 Yes, but requires dedicated
management server (or VM)
Yes, but requires dedicated
management server (or VM)
 
Virtual machine live migration     
Resource control     
Disk encryption     
Bare metal type 1 hypervisor     

10. Citrix Xen is a free hypervisor, high performance clouds.
 Monitors average CPU and memory utilization across all active hosts in the pool
 Monitors change in a pool and shared storage configuration.
 Monitors VM migrations.
 Easily configure Xen desktop and Xen app virtualization.
Reason For Choose Citrix Xen
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.

11. Installing Xen Server
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12. Installing Xen Server
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13. Installing Xen Server
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14. Installing Xen Server
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15. Installing Xen Server
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16. Installing Xen Server
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17. Installing Xen Server
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18. Installing Xen Server
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19. Installing Xen Server
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20. Installing Xen Server
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21. Installing Xen Client
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• Unless

22. Creating Virtual Machine
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• Unless

23. High Availability
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24. High Availability
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25. High Availability
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26. High Availability
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27. High Availability
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28. Experiment Data
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USER DEMAND
Users : 1500
Memory : 2 GB/VD
Space : 60 GB/VD
Processor : 1 Vcpu/VD
REQUIREMENT
Memory : 3000 GB
Space : 90 TB

29. Server Specs
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For 1500 users we need five High end server host and can use storage.
Server
Example: HP ProLiant DL380p Gen8 Server
Storage
Example: EMC

30. Power Savings
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You can significantly reduce your power cost by using virtual environment.
How ?

31. Power Comparison
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32. Future work
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 Virtualized desktop environment will be increased.
 Also deploying server virtualization, network virtualization,
storage virtualization and application virtualization.
 Data security issues will be fixed easily by storing the data
on the virtual servers.

33. Conclusion
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To sum up, virtualization has many benefits to provide
engineering. It is a form of abstraction used to simplify
the use of a computer's resources. Through this abstraction, resources become
represented into simpler or different forms.
The benefits of using virtualization include portability, security, performance and
reliability.
Productivity of the organization will be increased.

34. Thank You For Coming.
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