Where to read / watch video courses on modern servers?

Question

Server equipment

Video courses for a beginner: -
what are the servers
- blades, blade.
-optimal solutions
Advise where to learn.

Answer 1

If English is good, then Youtube has a lot of material, you can just google it, the main companies that offer blades are Cisco UCS, Fujitsu BX, HP Proliant, IBM (Lenovo), Dell, etc.
Optimal solutions can only be given for a specific problem; there is no universal solution for all problems.