Bare metal cloud is based on the idea of allocating servers for building cloud infrastructure.
Bare metal resources are provided to customers to build their own virtual infrastructure. Therefore, Bare metal cloud is often called "bare iron" or "pure iron".
Bare metal servers do not contain a hypervisor, they are not virtualized, and previously similar servers for storing information had to be rented for a long time, unlike cloud resources with a monthly payment. Bare metal cloud - the best of the worlds of cloud and iron!