Difference between ESX 3.5 and ESX 4.0
Here is the post with the Difference between ESX 3.5 & ESX 4.
Features
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ESX 3.5
|
ESX 4
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Linked Mode
|
No Linked Mode Support
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Linked Mode Supportis introduced in vSphere 4.0
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Host Profiles
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No Host Profiles
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Host Profiles is Introduced in vSphere 4.0
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Centralized License
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Require dedicated License server
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License can be managed within vCenter server
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Performance chart
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Yes
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Lot More enhancements
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Events and Alarms
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Yes
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Lot More enhancements
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Fault tolerance
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Not Available
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Available from vSphere 4.0
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Storage VMotion
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SVMotion available only with CLI
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SVMotion available in GUI
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VMotion
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Yes
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Yes
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Virtual CPUs per host
|
192
|
512
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Virtual Machines per host
|
170
|
320
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Logical processors per host
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32
|
64
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RAM per host
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256 GB
|
1 TB
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Maximum Service console Memory
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800 MB
|
800 MB
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DRS
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Yes
|
Yes
|
VMware Data Recovery
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Backup using VCB (VMware Consolidated backup)
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VMware Data Recovery and VCB support
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Enhanced VMotion Compatibility (EVC)
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No EVC
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EVC is introduced in vSphere 4.0
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VMware HA Admission Control
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Yes but without options to reserve failover capacity
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Admission Control is improved to provide more flexible configuration options to reserve failover capacity.
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High Availability Clustering with Windows Server 2000, 2003, 2008
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Not Available
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Available in vSphere 4.0
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Serial Attached SCSI (SAS)
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Not Available
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Available to support MSCS on win 2008
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Hosts per storage volume
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32
|
64
|
Fiber Channel paths to LUN
|
32
|
16
|
NFS Datastores
|
32
|
64
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Hardware iSCSI initiators per host
|
2
|
4
|
Virtual Machine Hot Add Support
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NO
|
Yes
|
Number of virtual CPUs per virtual machine
|
4
|
8
|
Virtual Hardware version
|
4
|
7
|
RAM per virtual machine
|
64 GB
|
255 GB
|
virtual machine swap file Size
|
65532MB
|
255GB
|
VMDirectPath for Virtual Machines
|
NO
|
Yes
|
Vmkernel
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32 Bit
|
64 bit
|
Service Console
|
32 Bit
|
64 bit
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Concurrent remote console sessions
|
10
|
40
|
Virtual Disk Thin Provisioning
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No Thin Provisioning
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Thin Provisioning introduced in vSphere 4.0
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VMware Paravirtualized SCSI (PVSCSI
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Not available
|
High-performance storage adapters that offer greater throughput and lower CPU utilization for virtual machines
|
Hot Extend for Virtual Disks
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Only Via VCLI using vmkfstools
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Available via GUI
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Hot plug support for virtual devices
|
No
|
Yes
|
VMXNET Generation 3
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Not Available
|
Yes
|
vNetwork Distributed Switch
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Not Available
|
Available from vSphere with Enterprise Plus License
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Private VLAN Support
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Not Available
|
Available with DVSwitch
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Network Vmotion
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Not Available
|
Available with DVSwitch
|
3rd Party Distributed Switch Support
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Not Available
|
We can use Cisco Nexus 1000v with DVSwitch
|
IPv6 Support
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Yes
|
Yes
|
NICs per VM
|
4
|
10
|
Standard vSwitches per host
|
127
|
248
|
Virtual NICs per standard vSwitch
|
1016
|
4088
|
8 way SMP
|
No Only 4 way
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Yes
|
Update Manager
|
Yes
|
Yes
|
DPM
|
Experimental
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Fully supported with PMI and iLO Remote Power On
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License Types
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VMware Infrastructure Foundation VMware Infrastructure Standard VMware Infrastructure Enterprise
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vSphere Essentials vSphere Essentials Plus vSphere Standard vSphere Advanced vSphere Enterprise vSphere Enterprise Plus
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