Sorry, should have been clearer here; the only application I'm worried about is jellyfin; I also run a fileshare, domain controller, a git instance, and like to have a lab environment to build and tear down servers. I'll edit the original comment to clear that up.
databender
joined 1 year ago
The Conan books by Robert E. Howard; I know they're not RPG books but hear me out.
Robert Howard can fit a huge Conan adventure into the smallest space possible. Opening one story is like looking in the Tardis - Conan will seduce a queen, she'll get kidnapped, he'll ride vast distances, fight barbarians, then fight wizards, save her, then fight more barbarians and it's all in under 300 pages. The man was a genius when it comes to pacing which is a hefty problem for me and a lot if DMs I know.
Also Dungeoncraft on youtube.
I have a friend in a neighboring state that I visit regularly - we're setting up disparate SANs, one at his location, the other at mine. We each get half the storage space; we back up to the half onsite and overnight the onsite SAN data gets backed up to the offsite. This has nothing to do with mail, but if you can host a mail server on something as inexpensive as a pi then you could have one at multiple locations for redundancy purposes.