31 мая 2014 года, для улучшении качество образовании и вдохновении студентов школы МаСуД, было организованно мастер-класс с участием сертифицированного специалиста международного уровня по программе Linux Professional Institute Сухроба Монфарида на тему "Виртуализация серверов". Сухроб рассказал студентам МаСуДа, какие преимущества в использовании виртуальных серверов для управления бизнесом или нескольким проектом одновременно.

1. Virtualization
Sohrab Monfared
Linux Professional Institute Certified
IT Administrator, Security Consultant, Instructor
@CentreICT

2. What is it?
●
At its simplest level, virtualization allows you,
virtually and cost-effectively, to have two or
more virtual computing environments, running
different operating systems and applications on
one piece of hardware.
●
Virtualization is also designed to enable a
generation of more energy-efficient computing.

3. What Does Virtualization
Deliver?
●
Consolidate workloads to reduce hardware,
power, and space requirements.
●
Run multiple operating systems simultaneously
as an enterprise upgrade path, or to leverage
the advantages of specific operating systems,
or for whatever reason you can imagine.

4. What Does Virtualization
Deliver?
●
Run legacy software on newer, more reliable,
and more power-efficient hardware.
●
Dynamically migrate workloads to provide fault
tolerance.
●
Provide redundancy to support disaster
recovery.

5. Why Virtualization ?
●
Reduce the Total Cost of Ownership (TCO).
●
Lowering the Operating Expenses (OPEX),
such as energy costs.
●
Save on capital expenditures for new server
equipment.
●
Provision new systems faster by building
standard server operating system images.

6. Consolidation: A real-world example
●
Replacing 100 Sun Fire V880 systems running
Oracle Solaris 8 with 17 Sun SPARC Enterprise
T5240s systems running Oracle Solaris 10:
– Reduced space: 100 V880s require 50 data center
racks, whereas 17 T5240s can fit in a single rack.
– Approximately 660,000 BTUs of heat generation
would be removed from the data center.
– Approximately $200,000 would be saved in electricity
costs per year (ignoring the cost of cooling).

7. Goal or Destination
None of them!
●
Virtualization isnot a goalby itself.
●
Virtualization is a means to the strategic goal
of enabling services-based IT in the enterprise
It is a journey —not a destination.

8. Hypervisor – Host - Guest
●
A hypervisor or Virtual Machine Monitor (VMM)
is a piece of computer software, firmware or
hardware that creates and runs virtual
machines.
●
A computer on which a hypervisor is running
one or more virtual machines is defined as a
host machine. Each virtual machine is called a
guest machine.

9. Type vs Type
●
Type 1 (or native, bare metal) hypervisors run directly
on the host's hardware to control the hardware and to
manage guest operating systems. A guest operating-
system thus runs on another level above the
hypervisor.
●
Type 2 (or hosted) hypervisors run within a
conventional operating-system environment. With the
hypervisor layer as a distinct second software level,
guest operating-systems run at the third level above
the hardware.

10. Types explained

11. That's all ?
Technically no !
It's Q/A Time !