: A common pitfall is attempting to use a vSphere 6.x key on an ESXi 5.5 host. Licensing is version-specific; a key for "vSphere 5 Enterprise Plus" will work on 5.5, but a "vSphere 6" key will not. How to Apply an ESXi 5.5 License Key

ESXi is free to download and use in a "free edition" mode. However, this free mode has limitations—most notably, it lacks backup API support (VADP) and includes a hard virtual RAM limit. To unlock unlimited RAM and advanced features like vMotion, High Availability (HA), and Distributed Resource Scheduler (DRS), a paid license key is required.

Have a legacy VM stuck on ESXi 5.5? Comment below—the community can help you plan a migration path.

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Github: Esxi 5.5 License Key

: A common pitfall is attempting to use a vSphere 6.x key on an ESXi 5.5 host. Licensing is version-specific; a key for "vSphere 5 Enterprise Plus" will work on 5.5, but a "vSphere 6" key will not. How to Apply an ESXi 5.5 License Key

ESXi is free to download and use in a "free edition" mode. However, this free mode has limitations—most notably, it lacks backup API support (VADP) and includes a hard virtual RAM limit. To unlock unlimited RAM and advanced features like vMotion, High Availability (HA), and Distributed Resource Scheduler (DRS), a paid license key is required.

Have a legacy VM stuck on ESXi 5.5? Comment below—the community can help you plan a migration path.

✕

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