US Patent 10976942 Versioning a configuration of data storage equipment

A technique versions a configuration of data storage equipment. The technique involves receiving, while the data storage equipment operates in accordance with a first version of the configuration of the data storage equipment, a configuration change command to change the configuration of the data storage equipment. The technique further involves changing the first version of the configuration of the data storage equipment to a second version of the configuration of the data storage equipment in response to the configuration change command. The technique further involves, while the data storage equipment operates in accordance with the second version of the configuration of the data storage equipment, concurrently maintaining access to the first version of the configuration of the data storage equipment and the second version of the configuration of the data storage equipment.