vSphere 6.5 is now available and with every release VMware makes changes to the configuration maximums for vSphere. Since VMware never highlights what has changed between releases in their official Configuration Maximum 6.5 documentation, I thought I would compare the document with the 6.0 version and list the changes between the versions here.
Configuration vSphere 6.5 vSphere 6.0
Virtual Machine Maximums
RAM per VM 6128GB 4080GB
Virtual NVMe adapters per VM 4 N/A
Virtual NVMe targets per virtual SCSI adapter 15 N/A
Virtual NVMe targets per VM 60 N/A
Virtual RDMA Adapters per VM 1 N/A
Video memory per VM 2GB 512MB
ESXi Host Maximums
Logical CPUs per host 576 480
RAM per host 12TB 6TB *some exceptions
LUNs per server 512 256
Number of total paths on a server 2048 1024
FC LUNs per host 512 256
LUN ID 0 to 16383 0 to 1023
VMFS Volumes per host 512 256
FT virtual machines per cluster 128 98
vCenter Maximums
Hosts per vCenter Server 2000 1000
Powered-on VMs per vCenter Server 25000 10000
Registered VMs per vCenter Server 35000 15000
Number of host per datacenter 2000 500
Maximum mixed vSphere Client (HTML5) + vSphere Web
Client simultaneous connections per VC60 (30 Flex, 30 maximum HTML5) N/A
Maximum supported inventory for vSphere Client
(HTML5)10,000 VMs, 1,000 Hosts N/A
Host Profile Datastores 256 120
Host Profile Created 500 1200
Host Profile Attached 500 1000
Platform Services Controller Maximums
Maximum PSCs per vSphere Domain 10 8
vCenter Server Extensions Maximums
[VUM] VMware Tools upgrade per ESXi host 30 24
[VUM] Virtual machine hardware upgrade per host 30 24
[VUM] VMware Tools scan per VUM server 200 90
[VUM] VMware Tools upgrade per VUM server 200 75
[VUM] Virtual machine hardware scan per VUM server 200 90
[VUM] Virtual machine hardware upgrade per VUM server 200 75
[VUM] ESXi host scan per VUM server 232 75
[VUM] ESXi host patch remediation per VUM server 232 71
[VUM] ESXi host upgrade per VUM server 232 71
Virtual SAN Maximums
Virtual machines per cluster 6000 6400
Number of iSCSI LUNs per Cluster 1024 N/A
Number of iSCSI Targets per Cluster 128 N/A
Number of iSCSI LUNs per Target 256 N/A
Max iSCSI LUN size 62TB N/A
Number of iSCSI sessions per Node 1024 N/A
iSCSI IO queue depth per Node 4096 N/A
Number of outstanding writes per iSCSI LUN 128 N/A
Number of outstanding IOs per iSCSI LUN 256 N/A
Number of initiators who register PR key for a iSCSI LUN 64 N/A
Storage Policy Maximums
Maximum number of VM storage policies 1024 Not Published
Maximum number of VASA providers 1024 Not Published
Maximum number of rule sets in VM storage
policy16 N/A
Maximum capabilities in VM storage policy
rule set64 N/A
Maximum vSphere tags in virtual machine storage policy 128 Not Published
