ESXi hosts limits remain mostly the same from version 6.0 but, of course, new hardware and new devices are now supported. Scalability remains quite similar compared with version 6.0, as summarized in the following table :
|
vSphere 4.0 |
vSphere 4.1 |
vSphere 5.0 |
vSphere 5.1 |
vSphere 5.5 |
vSphere 6.0 |
vSphere 6.5 |
|
|
Logical CPU |
64 |
160 |
160 |
160 |
320 |
480 |
576 |
|
Physical RAM |
1 TB |
1 TB |
2 TB |
2 TB |
4 TB |
12 TB |
12 TB |
|
NUMA nodes |
NA | NA |
8 nodes |
8 nodes |
16 nodes |
16 nodes |
16 nodes |
|
Virtual CPU |
512 |
512 |
2048 |
2048 |
4096 |
4096 |
4096 |
|
VMs |
320 |
320 |
512 |
512 |
512 |
1024 |
1024 |
|
LUNs (iSCSI/FC) |
256 |
256 |
256 |
256 |
256 |
256 |
512* |
|
NFS mounts |
64 |
64 |
256 |
256 |
256 |
256 |
256 |
|
LUN size |
64 TB |
64 TB |
64 TB |
64 TB |
64 TB |
64 TB |
64 TB |
* The official document reports 512, but the Disk.MaxLUN advanced settings report 1024 on a ESXi 6.5 host.
In most cases, there is 2x increase from vSphere 5.5.