Built when Netflix first took away password sharing. Thanks for the heads up Netflix! Would not want to start this project now 😂
Edit: adding temp and specs
I9 11900k Z590I Vision D ITX mobo 64gb memory The 16x lane is bifurcated to run: Intel a310 & Lsi 9305 16e into a hp dl380
Drives are 10x 14 tb wdd in raidz1, 6 256gb sata ssds in a pair of 3 wide mirrors for special vdev metadata, a 512gb nvme for read cache, and a 64gb optane for slog
I am guessing the egg-shell foamed enclosure is for the sound, but you probably have a bunch of sound coming from the fan port, nessisary for ventilation. You can cut a lot of the sound but maintain the airflow by cutting an s-shaped ducting spanning the width of the enclosure. The shape will drop the sound, while then ducting keeps the air flowing. I would not recommend any sorts of filters to block the sound because they are a bit too restrictive for an enclosure in your style.
I get about the same affect by placing a layer of the foam on the wall behind the fans. But you’re totally right. Without that lil bit the fan noise from the intake and exhaust was a lil noticeable