A different set of features and capabilities is defined after applying the appropriate license. After installing ESXi, a full-featured 60 day evaluation period is started.
You can use all features available for the Enterprise Plus edition during the day evaluation period. If you apply your license before the evaluation period expires, you can only use features allowed by your license. If 60 days have passed and no license was applied, then all advanced features are locked, running VMs continue to run but you cannot start powered off VMs.
ESXi hosts connected to vCenter Server are disconnected in this case. You'll need to apply a license free or paid to make your ESXi server work again. Where can you get a free license key? When you have downloaded the installer and received ESXi free license key, you can install the ESXi server according to the process described in this blog post. Enter root as the user name and the password you specified during ESXi installation to log in.
As you can see in the screenshot above, a host is running in the evaluation mode. In the current example ESXi was installed on the 18 th of January and the expiration date is the 19 th of March. A full list of features available for the day evaluation period is displayed on this page in the features section. The license key is displayed as 25 zeros in this case. Click Assign License and enter your key 25 symbols. Click the Check License button, and if your license key is valid, click Assign license.
The expiration date is changed to Never. The first visual difference you may notice is displayed in the screenshots above. If you want to see more detailed licensing info, use a console. Enter the following command to view your license and available features:. In the screenshot below you can see the output of this command for ESXi running in the free mode and for ESXi running in the evaluation mode.
A list of available features is much longer for the ESXi server that is running in the evaluation mode. Depending on your environment, some restrictions may be unnoticeable for you while others can be critical:.
You can ask the VMware community for support, and with any luck, you can find a solution for resolving your issue. While commercial VMware technical support works 24x7 and usually provides answers in short order, help in resolving issues by the VMware community may take somewhat more time. VMware commercial support also provides software upgrades. The 8 vCPU restriction may not cause significant disadvantages, unlike the following two restrictions. The free version of an ESXi server cannot be managed with vCenter — a centralized server for managing hosts and virtual machines.
It works in a different way depending on the resource. On CPU the reservation is a guarantee for clock cycles. They are defined in MHz. If these reosurces are not used, they will be given to another one. With virtual memory, the same thing happens. The total amount of a virtual machine memory is equal to the sum of the reservation and the swap file. Shares : Shares determine how much access you will get compared to something else. By default, each VM has shares.
In other words, where VMs compete for the resources. For the purpose of this demonstration a lab deploying 2 virtual ESXi hosts 6. To begin with, a virtual machine with Windows Server R2 and VMware tools installed will be used. After enabling Fault tolerance, the VM settings cannot be modified, so shares and reservations will be set before powering it on. At the moment of enabling Fault Tolerance, a wizard that will guide us through the process of resource allocation will be prompted.
For practicity purposes, I will place it in the same datastore as the original one.
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