Tag Archives: 6.7

vCenter Service Appliance 6.7 Tips and Tricks

VMware is moving their vCenter Server from Windows to the Linux based Photon OS. The following tips and tricks might come handy when working with the vCenter Service Appliance 6.7:

  • Enable SSH
  • File Transfer with SCP/SFTP
  • Public Key Authentication
  • Disable or Increase Shell Session Timeout
  • Password expiration
  • Reset vCenter Server Appliance 6.7 root password
  • Create a Backup Job
  • Certificate Warning

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Free ESXi 6.7 - How to Download and get License Keys

vSphere 6.7 has been released and as known from previous versions, VMware provides a free version of their Hypervisor ESXi for everyone again. The license key can be created for free at VMware's website. It has no expiration date. The binaries you will receive as "Free Hypervisor" are 100% identical to the paid version but with some software limitations.

Tech Specs and Limitations

  • No commercial support (But great community support)
  • Free ESXi cannot be added to a vCenter Server
  • Some API functionality is missing
  • No physical CPU limitation
  • Number of logical CPUs per host: 480
  • Maximum vCPUs per virtual machine: 8

Other limitations like the 32GB Memory or 2 CPU Socket limit are no longer in place.

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VMware ESXi 6.7 - Hardware not yet certified for upgrade

Double check your vendor support when updating ESXi hosts from to vSphere 6.7. Some systems have not been certified by their vendor yet. The following servers were supported in vSphere 6.5 but are according to VMware's HCL not yet supported in vSphere 6.7.

Your server is listed and you want to upgrade?

  • Usually, the list gets smaller a couple of weeks after a new vSphere version has been released. I will update this post when I notice changes.
  • Not supported does not say that it does not work.
  • Servers get certified by their vendor, not VMware. If you want a server to get certified, ask your vendor.
  • Vendor support matrices sometimes differ from VMware HCL. Please ask your vendor or VMware whether you are allowed to upgrade.
  • The list has been created with the help of my HCL in JSON Format.
  • Follow the comments to get notified of updates.
  • Did I miss something? Please comment.

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VMware vSphere 6.7 Configuration Maximums Changes

VMware vSphere 6.7 offers increased scalability. You can see a comparison against all previous versions at my ESX and vCenter Configuration Maximums page. Changes in VMware vSphere 6.7 are:

Virtual Machine Maximums

vSphere 6.7 vSphere 6.5 vSphere 6.0 
NVDIMM controllers 1 N/A N/A
Non-volatile Memory 1 TB N/A N/A
Virtual SCSI targets per virtual SCSI adapter 64 15 15
Virtual SCSI targets per Virtual Machine 256 64 64
Virtual RDMA Adapters per Virtual Machine 1 N/A N/A

ESXi Host Maximums

vSphere 6.7 vSphere 6.5 vSphere 6.0 
Maximum Non-volatile memory per host 1 TB N/A N/A
Logical CPUs per host 768 576 480
Maximum RAM per host 16 TB 12 TB 12 TB
Number of total paths on a server 4096 2048 1024
LUNs per server 1024 512 256
Volumes per host 1024 512 256

Fault Tolerance Maximums

vSphere 6.7 vSphere 6.5 vSphere 6.0 
Virtual CPUs per virtual machine 8 4 4
Virtual Memory per virtual machine 128 GB 64 GB 64 GB


vCenter Server Maximums

vSphere 6.7 vSphere 6.5 vSphere 6.0 
Hosts in linked vCenter Servers 5000 4000 4000
Powered on virtual machines in linked vCenter 50000 30000 30000
Registered virtual machines in linked vCenter 70000 50000 50000

Homelab - Will ESXi 6.7 run on Intel NUC?

esxi-on-5th-gen-NUC5i3MYHEVMware vSphere ESXi 6.7 is here and while you might want to wait before you upgrade your production, it's time to explore the new features in your Homelab. I've received a few questions on whether it is safe to upgrade.

Short answer
ESXi 6.7 will run on 5th, 6th and 6th Gen NUCs just as ESXi 6.5

Long answer...

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ESXi 6.7 - ESXCLI Command Mindmap

In vSphere 6.7 the command line interface esxcli has 62 new commands. Esxcli is a complete set of commands that you can use for troubleshooting, configuration or kickstart files. I have created and printed a mindmap to navigate through the namespaces more quickly. This post covers only basic namespaces, available on all ESXi 6.7 hosts. If you've installed additional software you might see more namespaces. I've also created mindmaps for ESXi 5.1ESXi 5.5ESXi 6.0 and ESXi 6.5.

ESXCLI in version 6.7 has 15 namespaces: Read more »

VMware ESXi 3.5 - 6.7 Hypervisor Size Comparison

The VMware bare-metal hypervisor ESXi is in the market for over 10 years now. During that time it has been continuously refined and added with new features. Since vSphere 5.0, the hypervisor size is very constant and has not increased severely. In this post, I am going to have a look at how much the hypervisor footprint has been changed from ESXi 3.5 to ESXi 6.7.

  • ESXi 3.5 - 46,01 MB
  • ESXi 4.0 - 59,99 MB
  • ESXi 4.1 - 85,19 MB
  • ESXi 5.0 - 132,75 MB
  • ESXi 5.1 - 125,85 MB
  • ESXi 5.5 - 151,98 MB
  • ESXi 6.0 - 154,90 MB
  • ESXi 6.5 - 135,39 MB
  • ESXi 6.7 - 129,51 MB

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VMware ESXi 6.7 - ESXCLI Command Reference

ESXCLI is a powerful command line tool on an ESXi host. You may need it for troubleshooting, configuration or for automated ESXi installations by using a kickstart file. I'm having an esxcli command line reference on my desktop since vSphere 5.x and I am using it quite often. Here is the command line reference for the latest release of vSphere ESXi 6.7.

Download: esxi67-esxcli-command-reference.txt Read more »

New ESXCLI Commands in vSphere 6.7

esxcli-65In vSphere 6.7 the command line interface esxcli has been extended with new features. This post introduces the new and extended namespaces.

Quick Summary
62 new ESXCLI commands including:

  • 3 Device
  • 6 Hardware
  • 1 iSCSI
  • 14 Network
  • 14 NVMe
  • 2 RDMA
  • 9 Storage
  • 6 System
  • 7 vSAN

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VMware vSphere 6.7 introduces Skylake EVC Mode

To simplify vMotion across CPU generations VMware has introduced Enhanced vMotion Compatibility (EVC). EVC automatically configures server CPUs with Intel FlexMigration or AMD-V Extended Migration technologies to be compatible with older servers. In vSphere 6.7 a now EVC mode has been introduced.

Intel Skylake Generation
Compared to Intel "Broadwell " EVC mode, the Skylake EVC mode exposes additional CPU features:

  • Advanced Vector Extensions 512
  • Persistent Memory Support Instructions
  • Protection Key Rights
  • Save Processor Extended States with Compaction
  • Save Processor Extended States Supervisor

For more information about EVC Modes see Intel CPU EVC Matrix