for some curious reasons, I am ending up with a system that contains 6 SATA powered disks (slow), including one SSD and 6 HDDs, + 2 NVMe SSDs (fast). I can use their storage capacity well.
I am currently approaching a fresh install of Fedora.
After some reading around, I am getting the sense that it would make sense to use one or both of the NVMe SSDs as a bcache for the much slower HDDs. I have difficulties finding advice on how to configure that.
I do find some mentions of bcache around Fedora 20 but nothing current, let alone in relation to btrfs.
Well, my question/topic is not yet well formed, as my understanding is not yet well formed.
So, at this point I would welcome very much suggestions on what to read that might help me better understand.