>>106472968
>any HDD over 8TB has helium in it
wrong, picrel is a 8tb drive using air. they stopped making 8-10tb helium drives and they only make air ones, and they are the worst possible hdds to get. you might still find used 8-10tb helium drives though, but they'd be 5+ years by now.

helium drives starts from 12tb and above.

>helium leaks out through tiny pores in the casing.
no, they are sealed airtight, it's why they have a different physical design. you need to open them up like a sardine can for the helium to leak out.

I have 2 helium drives both clocking at 2.5 years and they both show 100% helium levels in the SMART table.