Hyper-V Generation 1 ve Generation 2 Farkları

Hyper-V üzerinde sanal makine oluştururken bizden seçmemiz istenen 2 nesil arasındaki farklar nelerdir bundan bahsedeceğim.

32-bit ve 64-bit işletim sistemlerini destekler ve Hyper-V’nin önceki sürümlerinin hepsinde kullanabilir olan sanal donanımları sağlar.

Daha yeni sanallaştırma özelliklerini destekler. UEFI tabanlı yazılım mevcut ve sadece 64-bit işletim sistemlerinde çalışır.

Hangi İşletim Sistemleri Destekleniyor?

Operating system versions	Generation 1	Generation 2
RHEL/CentOS 7.x series	✔	✔
RHEL/CentOS 6.x series	✔	✔ Not: Sadece Windows Server 2016 ve üzeri.
RHEL/CentOS 5.x series	✔	✖

Red Hat Compatible Kernel Series versions	Generation 1	Generation 2
Oracle Linux 7.x series	✔	✔
Oracle Linux 6.x series	✔	✖

Operating system versions	Generation 1	Generation 2
SUSE Linux Enterprise Server 12 series	✔	✔
SUSE Linux Enterprise Server 11 series	✔	✖
Open SUSE 12.3	✔	✖

Boot method	Generation 1	Generation 2
PXE boot by using a standard network adapter	✖	✔
PXE boot by using a legacy network adapter	✔	✖
Boot from a SCSI virtual hard disk (.VHDX) or virtual DVD (.ISO)	✖	✔
Boot from IDE Controller virtual hard disk (.VHD) or virtual DVD (.ISO)	✔	✖
Boot from floppy (.VFD)	✔	✖

Secure Boot
Secure boot desteği. Generation 2 makinelerde varsayılan olarak etkin gelmektedir.
Larger boot volume
Daha büyük disk boyutu. Generation 2 makineler için disk boyutu 64TB’dir. VHDX formatı için maksimum disk boyutudur. Generation 1 makineler de VHDX için maksimum disk boyutu 2TB’dir.

Generation 1 Device	Generation 2 Replacement	Generation 2 Enhancements
IDE controller	Virtual SCSI controller	Boot from .vhdx (64 TB maximum size, and online resize capability)
IDE CD-ROM	Virtual SCSI CD-ROM	Support for up to 64 SCSI DVD devices per SCSI controller.
Legacy BIOS	UEFI firmware	Secure Boot
Legacy network adapter	Synthetic network adapter	Network boot with IPv4 and IPv6
Floppy controller and DMA controller	No floppy controller support	N/A
Universal asynchronous receiver/transmitter (UART) for COM ports	Optional UART for debugging	Faster and more reliable
i8042 keyboard controller	Software-based input	Uses fewer resources because there is no emulation. Also reduces the attack surface from the guest operating system.
PS/2 keyboard	Software-based keyboard	Uses fewer resources because there is no emulation. Also reduces the attack surface from the guest operating system.
PS/2 mouse	Software-based mouse	Uses fewer resources because there is no emulation. Also reduces the attack surface from the guest operating system.
S3 video	Software-based video	Uses fewer resources because there is no emulation. Also reduces the attack surface from the guest operating system.
PCI bus	No longer required	N/A
Programmable interrupt controller (PIC)	No longer required	N/A
Programmable interval timer (PIT)	No longer required	N/A
Super I/O device	No longer required	N/A