VM cannot power on due to “insufficient reservation.”

• Scenario / Problem Statement: VM fails to start with reservation-related error.

• Diagnosis:

  1. Check VM resource settings (CPU/memory).

  2. Verify cluster free resources.

  3. Inspect DRS/HA admission control.

• Likely Cause: Excessive resource reservation request.

• Resolution: Reduce reservation values, free up cluster resources, or adjust HA admission control.