Upgrade of licensed capacity on computer entity

摘要

A headless computer entity is provided with a base license key data stored on a raw disk sector separate from a system disk and a data disk. The license key data is used to control the available data storage capacity within the headless computer entity, and protect the computer entity from unauthorized upgrade to a higher product specification. Upgrades in capacity of the computer entity can be achieved without replacement of data disk, by altering an upgrade license key data to allow use of spare data storage capacity on the data disk.