VMware updates vSphere 6.5 to 6.5 U1

vSphere 6.5 Update 1 has been released and it contains some great improvements, fixes and removal of a feature!


Several improvements to vCenter, I personally think the increases are for the up and coming VMware Cloud on AWS release.

  •  vSphere 6.0 Update 3 can now be to upgraded/migrated to vSphere 6.5 Update 1
  • vCenter Server scale has been greatly increased!
    • Maximum vCenter Servers per vSphere Domain: 15 (increased from 10)
    • Maximum ESXi Hosts per vSphere Domain: 5000 (increased from 4000)
    • Maximum Powered On VMs per vSphere Domain: 50,000 (increased from 30,000)
    • Maximum Registered VMs per vSphere Domain: 70,000 (increased from 50,000)
  • Full support for the vCenter Server Appliance installer on macOS Sierra (10.12)


vSAN 6.6.1 has been released bringing with it;

  • New capabilities involving Update Manager (VUM)
  • More sources for updates including firmware, drivers, and vSphere software


Important notice for anyone running 3rd party switches.

  • 3rd party switch support has been REMOVED, this means users using 3rd party switches such as the Cisco Nexus 1000V must migrate away before upgrading to 6.5 U1.
  • UPDATE – VMware has revised the notice about 3rd part switches explaining subsequent vSphere versions will have the third party vSwitch APIs completely removed and third party vSwitches will no longer work. Meaning vSphere 6.5 U1 is the last update to support 3rd party switches . More info here

Read more in VMware’s official blog post here

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