> just curious, are you associated with them, as these are very obscure youtube videos :D

Unassociated, but tech-y videos are often recommended to me, and these videos got pushed to me. (I have viewed other, unrelated Tech Day videos, so probably why I got that short. Also an old Solaris admin, so aware of Cantril, especially his rants.)

> Love it though, even the reduction in fan noise is amazing. I wonder why nobody had thought of it before, it seems so simple.

Depends on the size of the server: can't really expand fans with 1U or even 2U pizza boxes. And for general purpose servers, I'm not sure how many 4U+ systems are purchased—perhaps some more now that perhaps GPUs cards may be a popular add-on.

For a while chassis systems (e.g., HP c7000) were popular, but I'm not sure how they are nowadays.

> I'm not sure how many 4U+ systems are purchased—perhaps some more now that perhaps GPUs cards may be a popular add-on.

Going from what i see at eCycle places, 4U dried up years ago. Everything is either 1 or 2U or massive blade receptacles (10+ U).

We (the home-lab on a budget people) may see a return to 4U now that GPUs are in vogue but i'd bet that the hyper scalers are going to drive that back down to something that'll be 3U with water cooling or so over the longer term.

We may also see similar with storage systems too; it's only a matter of time before SSD gets "close enough" to spinning rust on the $/gig/unit-volume metrics.