Well he brought down his entire storage system. Twice.
I believe one time he had to bring in Wendell Wilson from Wendell Wilson Consulting, but more likely know to the Internet-at-large as the primary figure on Level1Techs YouTube channel.
I have no desire, nor inclination to dig through the thousands of videos LMG has produced on YouTube, but it's still up to my knowledge, and watching him fumble about with absolutely no clue is not only painful, but pathetic. Linus suffers from the same affliction many of my Ph.D.-holding friends have, which is that he believes because he knows a lot about putting together computers and electronics that he could handle building a large-scale data storage system.
These systems are complex, and to be well-built and maintained, they require domain-specific knowledge - no different than an OS programmer needs deep knowledge of C and C++, and increasing now, Rust.
It's a series of videos of someone way in over his head who should have brought in an actual expert - like Wendell from Level1Techs, or Patrick from ServeTheHome, from the get-go, instead of trying to do it himself.