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Tudor Damian
IT Solutions Specialist

     tudy
despre webcast
deși în ultima vreme, cloud computing e
     mai căutat decât virtualizarea...




                                virtualization
                            cloud computing
nici virtualizarea, nici cloud computing,
    nu-l pot depăși pe mickey mouse




                                 mickey mouse
                                  virtualization
                              cloud computing
însă noi vom vorbi despre
  virtualizare ca parte a
  mediului IT enterprise
când lucrăm cu virtualizarea, ajungem
   să auzim câțiva termeni uzuali...
virtualizare
    mașină virtuală
      hypervisor
    paravirtualizare
      microkernel
   kernel monolitic
synthetic device drivers
    parent partition
începem cu câteva explicații
de la soluțiile de virtualizare,
toată lumea așteaptă automat la:

        izolare eficientă
           securitate
          performanță
    ușurință în administrare
tehnic, virtualizarea se poate
 realiza în mai multe moduri
full virtualization

guest nemodificat, migrare ușoară
      spre medii virtualizate
paravirtualizare

 guest modificat pentru a elimina
  nevoia de ”binary translation”

  oferă avantaje de performanță în
anumite circumstanțe, însă e nevoie
 de o versiune modificată de kernel
          instalată pe guest
virtualizare asistată hardware

       AMD-V, Intel VT

prima generație include doar
 virtualizare CPU, generațiile
 următoare vin cu suport de
virtualizare pe memorie și I/O
hosted virtualization (Type 2)

Microsoft Virtual Server / Virtual PC
      VMWare Workstation
            VirtualBox
OS virtualization

Virtuozzo / OpenVZ
să discutăm puțin despre

Hyper-V / Xen și VMWare
arhitectura Hyper-V
    Parent Partition                            Child Partitions
                                                                              Provided by:
Virtualization Stack
                                                                                 Windows
                                                 Applications
 WMI Provider                                                                    Windows
                        VM Worker                                                Virtualization
 VM                     Processes
                                                                                 ISV
 Service
                                                                User Mode
                                                                                 OEM

                                           Virtualization
                                           Service              Windows
Server Core          Virtualization                             Kernel
                                           Clients
                           Service         (VSCs)
 Windows                 Providers
 Kernel         IHV
                Drivers     (VSPs)      VMBus               Enlightenments

                                                                Kernel Mode

                                 Windows hypervisor

                       “Designed for Windows” Server Hardware
iar cerințele nu sunt exagerate...

               x64
               DEP
        Intel VT / AMD-V
la VMWare,
lucrurile stau puțin diferit
Hyper-V – microkernelized kernel

  VMWare – monolithic kernel
Hyper-V hypervisor – 260KB

VMWare hypervisor – 32MB
Hyper-V – ”synthetic” drivers

VMWare – emulated drivers
Virtuozzo / OpenVZ
față de arhitectura bazată pe hypervisor...
VZ / OpenVZ oferă virtualizare asistată-OS
SCVMM 2008 R2
facilități noi:

        live migration
   storage hot add/remove
Virtual Machine Queue (VMQ)
         TCP Chimney
medii de stocare:

   Clustered Shared Volumes (CSV)
SAN migration in/out of clustered hosts
  Expanded Support for iSCSI SANs
          Storage Migration
      Support for third party CFS
 Support for Veritas Volume Manager
alte îmbunătățiri:

   Maintenance Mode
    Disjoint domains
Queuing of Live migrations
Host compatibility checks
http://www.microsoft.com/systemcenter/virtualmachinemanager/en/us/r2.aspx
DEMO
întrebări
mulțumesc.
Tudor Damian
IT Solutions Specialist

     tudy

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