Guillaume Tyrant (Citrix) the virtualisation nest not a technology miracle

Opinion D `expert – Source of profits in matire dadministration, continuit dactivit and rduction of the cots dinfrastructure, the virtualisation nest however not an investment short term prvient Guillaume Tyrant de Citrix.

the virtualisation gnre it rellement a profit conomic? If so, how do you valuez it?
the first profit S `obtains by the consolidation of the waiters. Naturally, this conomy dpend of the number of machines consolidate. The concentration on a number of physical waiters more rduit will have an impact on the dpenses in hbergement – hiring D `space in a datacenter -, on the purchases of waiters and consumption D `nergie.
# In addition to these bnfices direct, there exist secondary profits or cachs which dcoulent not of the consolidation, but of the use of the virtualisation. Dploiement D `a waiter is thus acclr and simplifi in terms D `administration.
# In matire of safeguard and restoration, the virtualisation opens the door. Crous de Crteil has adopt thus the virtualisation for rduire its park of waiters. But grce this technology, it also lays out dsormais D `a solution for the recovery D `activit.
# Which conditions do you put the accs these bnfices?
I see three limitations. The premire relates to the infrastructure of which owes tre of good invoice. If undertaken it N `does not have which it, it will need the crer. The manufacturers of storage solutions made voluer their products for intgrer the virtualisation.
# the deuxime not relates to the matrielle platform associates with the virtual machines, and in particular the type of processor. A virtual machine east compiles for a type of processor. Lorsqu `it will be dplace, it is ncessaire that the processor either quivalent.
# Jusqu `yesterday, the virtualisation ncessitait an infrastructure waiter homogne to allow dplacement D `a physical machine another. The founders since set up solutions for grer them. On the other hand, I do not know if a migration D `an Intel processor towards another D `AMD is possible.
# Another point relates to the rseaux charts of which the number owes tre sufficiently important. Moreover, if a virtual machine has two physical rseaux charts, one needs qu `it finds at least an identical number of it if it east migrates towards another waiter.
# Except this questioning on the infrastructure, which good practices is necessary it to conform in the use of the virtualisation?
What begins apparatre, C `is the ncessit D `to tablir rgles of qualit of service. Formerly, the computer rooms were caractrisaient by the prolifration of the pizza pie-boxes, of the waiters 1U empils. Dsormais, the companies pile up virtual machines.
# the multiplication of these virtual machines must S `accompany D `a rflexion on the qualit by service by the virtual environments. That will pass in particular by the respect of rgles in terms of resource sharing, of dplacement automatic of the virtual authorities and rservation in order to guarantee a contrle on the infrastructure.
# So in prproduction, this concern is less, in production the mentalits owe voluer for rpondre this proccupation.
# waitings the gard of are the virtualisation sometimes phantasms?
the companies are confront the ncessit rduire the number of their waiters. Nanmoins, virtualisation N `is not a technology miracle. One needs in apprhender the spc …