Hi Guys,

A really interesting topic .. For which i was searched a lot . And ofcourse this is the most favourire question now a days in vmware interviewer and terror for candidates.. So i bring some points here .. Which will surely help you…

Features
vSphere 4.1
vSphere 5.0
Hypervisor
ESX & ESXi
Only ESXi
VMA
Yes VMA 4.1
Yes VMA 5
HA Agent
AAM
Automatic Availability
Manager
FDM
Fault Domain Manager
HA Host Approach
Primary & Secondary
Master & Slave
HA Failure Detection
Management N/W
Management N/W and Storage
communication
HA Log File
/etc/opt/vmware/AAM
/etc/opt/vmware/FDM
DNS Dependent on DNS
Yes
NO
Host UEFI boot support
NO
boot systems from hard drives, CD/DVD drives, or USB media
Storage DRS
Not Available
Yes
VM Affinity & Anti-Affinity
Available
Available
VMDK  Affinity &
Anti-Affinity
Not Available
Available
Profile driven storage
Not Available
Available
VMFS version
VMFS-3
VMFS-5
VSphere Storage Appliance
Not Available
Available
Iscsi  Port Binding
Can be only done via Cli
using ESXCLI
 Configure dependent
hardware iSCSI and software
iSCSI adapters along with the
network configurations and
port binding in a single dialog
 box using the vSphere Client.
Storage I/O control for
NFS
Fiber Channel
Fiber Channel & NFS
Storage Vmotion Snapshot
support
VM with Snapshot cannot be migrated using Storage vMotion
VM with Snapshot can be migrated using Storage vMotion
Swap to SSD
NO
Yes
Network I/O control
Yes
Yes with enhancement
ESXi firewall
Not Available
Yes
vCenter Linux Support
Not Available
vCenter Virtual Appliance
vSphere Full Client
Yes
Yes
vSphere Web Client
Yes
yes with lot of improvements
VM Hardware Version
7
8
Virtual CPU per VM
8 vCpu
32 vCpu
Virtual Machine RAM
255 GB
1 TB of vRAM
VM Swapfile size
255 GB
1 TB
Support for Client
connected USB
Not Available
Yes
Non Hardware
Accelerated
3D grpahics support
Not Available
Yes
UEFI Virtual BIOS
Not Available
Yes
VMware Tools Version
4.1
5
Mutlicore vCpu
Not Available
Yes  configure at VM setting
MAC OS Guest Support
Not Available
Apple Mac OS X Server 10.6
Smart card reader support
for VM
Not Available
Yes
Auto Deploy
Not Available
Yes
Image Builder
Not Available
Yes
VM’s per host
320
512
Max Logical Cpu per Host
160
160
RAM per Host
1 TB
2 TB
MAX RAM for Service
Console
800 MB
Not Applicable (NO SC)
LUNS per Server
256
256
Metro Vmotion
Round-trip latencies of up to
5 milliseconds.
Round-trip latencies of up to
10 milliseconds. This provides better performance over
long latency networks
Storage Vmotion
Moving VM Files using moving to using dirty block tracking
Moving VM Files using I/O
mirroring with better enhancements
Virtual Distributed
Switch
Yes
Yes with more enhancements
like deeper view into virtual machine traffic through Netflow and enhances
monitoring and troubleshooting capabilities through SPAN and LLDP
USB 3.0 Support
NO
Yes
Host Per vCenter
1000
1000
Powered on virtual
machines
 per vCenter Server
10000
10000
Vmkernel
64-bit
64-bit
Service Console
64-bit
Not Applicable (NO SC)

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