With the release of vSphere 5.5 many new features were introduced. Also there are lot of changes in the configuration maximum. I have summarized those changes in a tabular form below

Maximum Type vSphere 5.1 vSphere 5.5
Virtual disk size VM 2TB minus 512 bytes 62TB
Virtual SATA adapters per VM VM NA 4
Virtual SATA devices per virtual SATA adapter VM NA 30
xHCI USB controllers VM 1 NA
Logical CPUs per host Host 160 320
NUMA Nodes per host Host 8 16
Virtual CPUs per host Host 2048 4096
Virtual CPUs per core Host 25 32
RAM per host Host 2TB 4TB
Swap file size Host 1TB NA
VMFS5 – Raw Device Mapping size (virtual compatibility) Host 2TB minus 512 bytes 62TB
VMFS5 – File size Host 2TB minus 512 bytes 62TB
e1000 1Gb Ethernet ports (Intel PCI‐x) Host 32 NA
forcedeth 1Gb Ethernet ports (NVIDIA) Host 2 NA
Combination of 10Gb and 1Gb Ethernet ports Host Six 10Gb and Four 1Gb ports Eight 10Gb and Four 1Gb ports
mlx4_en 40GB Ethernet Ports (Mellanox) Host NA 4
SR-IOV Number of virtual functions Host 32 64
SR-IOV Number of 10G pNICs Host 4 8
Maximum active ports per host (VDS and VSS) Host 1050 1016
Port groups per standard switch Host 256 512
Static/Dynamic port groups per distributed switch Host NA 6500
Ports per distributed switch Host NA 60000
Ephemeral port groups per vCenter Host 256 1016
Distributed switches per host Host NA 16
VSS portgroups per host Host NA 1000
LACP – LAGs per host Host NA 64
LACP – uplink ports per LAG (Team) Host 4 32
Hosts per distributed switch Host 500 1000
NIOC resource pools per vDS Host NA 64
Link aggregation groups per vDS Host 1 64
Concurrent vSphere Web Clients connections to vCenter Server vCenter NA 180
Hosts (with embedded vPostgres database) vCenter Appliance 5 100
Virtual machines (with embedded vPostgres database) vCenter Appliance 50 3000
Hosts (with Oracle database) vCenter Appliance NA 1000
Virtual machines (with Oracle database) vCenter Appliance NA 10000
Registered virtual machines vCloud Director 30000 50000
Powered-On virtual machines vCloud Director 10000 30000
vApps per organization vCloud Director 3000 5000
Hosts vCloud Director 2000 3000
vCenter Servers vCloud Director 25 20
Users vCloud Director 10000 25000
Posted in: Vmware.
Last Modified: October 5, 2014

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