this post was submitted on 17 Dec 2024
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Just a reminder: These massive drives are really more a "budget" version of a proper tape backup system. The fundamental physics of a spinning disc mean that these aren't a good solution for rapid seeking of specific sectors to read and write and so forth.
So a decent choice for the big machine you backup all your VMs to in a corporate environment. Not a great solution for all the anime you totally legally obtained on Yahoo.
Not sure if the general advice has changed, but you are still looking for a sweet spot in the 8-12 TB range for a home NAS where you expect to regularly access and update a large number of small files rather than a few massive ones.
HDD read rates are way faster than media playback rates, and seek times are just about irrelevant in that use case. Spinning rust is fine for media storage. It's boot drives, VM/container storage, etc, that you would want to have on an SSD instead of the big HDD.
And oftentimes some or all of the metadata that helps the filesystem find the files on the drive is stored in memory (zfs is famous for its automatic memory caching) so seek times are further irrelevant in the context of media playback