I live in a part of the world where powercuts are pretty frequent. 1 per day is normal. They last between 1 and 8 hours. A day without powercuts feels like a special occasion.
My machine is powered by a desktop ups which is terrible. It is only supposed to power everything for a few minutes to shutdown safely. But it is cheap and I don’t know much about other affordable alternatives.
How do you folks who self host at home deal with powercuts? Any recommendations? 8 hours of uptime from a ups sounds almost impossible or totally unaffordable to me.
I rarely get power outages so I just use a filesystem that can take the abuse (ei btrfs or zfs)
Any journaled filesystem is mostly fine (e.g. good old ext4).
Same as you, if power goes down for a long time I have bigger problems than not being able to access my home server. Guess I could still hook it up to my car battery and DC->AC converter if I really wanted to, and use my phone as 4G modem/backup internet access.
Ext4 can get corrupted in some cases. Its very rare but there is no way of knowing since ext4 doesn’t have file checksums.