I’m looking to get a new internal hard drive for a specific use case:
- it’s for a desktop, meaning I can fit either
- i need 2TB, no more and no less, also meaning I can get either
- it’s for my media collection, mostly movies
- it’s not gonna be read-only, but I wouldn’t write too often (I would torrent, but all the program’s metadata would be on another drive)
- most likely gonna be formatted with btrfs (subject to change, open to suggestion)
Should I get the 2.5 inch or the 3.5 one?
Thanks in advance.

I’ve read that larger cache size can be an indicator of SMR drives. Other than that, I don’t really care about it.
To confirm your uncertainties, I can indeed use the external caching mechanisms on btrfs.
How much would the RPM affect things? I’d think the lower RPM would be less problematic, at least where longetivity and noise is concerned.
Also, what’s your reasoning for the extent size?
Sorry, I realize now that I actually don’t know this much about HDDs. I dont know about SMR, or how rpm affects longevity.
The extent size was suggested by ZFS docs: https://openzfs.github.io/openzfs-docs/Performance and Tuning/Workload Tuning.html#bit-torrent
(I made a mistake. They’re recommended record size is 16k)