What Windows license is required for VDI?

Question

Windows

Читал в сети расчеты по стоимости VDI и увидел, что никто не считает лицензии на саму винду. Получается чтобы грузиться в виртуалку нужна только VDA лицензия или я не прав?
И что все-таки лучше PCoIP или ICA? Каждый свое болото хвалит раздирая горло, внятных мнений на эту тему вообще не видел. Первый привлекает большим ассортиментом нулевых клиентов и аппаратной обработкой протокола, насчет второго, то много мнений, что он лучше PCoIP.

Answer 1

What licenses are required to WORK MS VDI?
A little earlier I already asked this question.
Regarding the licenses for the guest systems themselves, for some reason, the answers differ: someone says that VDI guests do not need to be licensed separately, but someone says that it is. In any case, you won’t be able to use MAK keys (regular boxed Windows) in Pooled VDI - reactivations will run out very quickly - which means you should look towards deploying a KMS server. The best solution would be to contact your license provider with this question - now in such companies even the girls at the reception are better versed in aspects of licensing MS products than the average system administrator.
PCoIP/RDP/ICA is a matter of taste. Each protocol is good in its own way. Personally, I finally decided for myself that apart from MS and VMWare VDI does not exist, so the choice comes down to PCoIP or RDP. Not everything is clear here:
PCoIP, in my opinion, is definitely the best remote access protocol: less network load, less user lag, behaves much better when accessed via WAN, a huge number of extremely cheap zero clients on teradici pcoip processors. In addition to the fact that such zero clients are cheaper, they will also last longer: RDP tends to acquire such features every few years that kill backward compatibility (try to screw old thin clients like HP t5135 to pooled VDI from MS without using any thinstation - and you will understand what I mean).
С другой стороны, RDP в локальной сети ведет себя ну ни разу не хуже, чем PCoIP. Да, скроллинг чуть более прерывистый, и в игрушки по RDP играть нормально вряд ли получится. Но никакая экономия на тонких клиентах не покроет АДОВЫЕ затраты на лицензирование Horizon. К тому же он в любом случае требует виндовую инфраструктуру, так что виндовые лицензии сэкономить не получится.
Винда потому так любима на западе, что в ней половина фич условно бесплатные.

Answer 2

This question is also interesting. If windows server 2012r2 standart is used as a terminal (session), then the server itself has a license, an access license, and a license for terminals. And here with VDI it is not clear. 1) Here they use virtualization, so you need, for example, 50 minutes of VDI, then you need to do 50 virtual machines? So you need to buy a reaction data center (in 1 "standard" license there are only 2 virtual machines)? 2) Do you need more licenses than the server Windows itself, cal licenses, terminal access licenses for VDI?