> But as it gets wider use fact is the vast majority of systems have a single device and don't want to cut available storage in half for copies=1. Setting copi

> But as it gets wider use fact is the vast majority of systems have a single device and don't want to cut available storage in half for copies=1. Setting copies=2 for the root filesystem, but segmenting stuff like caches, user downloads, etc into separate datasets with copies=1, is totally reasonable for this purpose. The base system in most distributions only takes a few GiB. 1 TiB SSDs are pretty common even on entry level laptops these days, and it's becoming increasingly difficult to find new machines without at least 512 GiB.