Numbers from my instance, running for about a 1 year and with average ~2 MAU. According to some quick db queries there is currently 580 actively subscribed communities (it was probably a lot less before I used the subscribe bot to populate the All tab).

SELECT pg_size_pretty( pg_database_size('lemmy') ): 17 GB

Backblaze B2 (S3) reports average 22.5 GB stored. With everything capped to max 1 USD, I pay cents - no idea how backblaze does it but it’s really super cheap, except for some specific transactions done on the bucket afaik, which pictrs does not seem to do.

According to my zabbix monitoring, two months ago (I don’t keep longer stats) the DB had only about 14G of data, so with this much communities I am getting about 1.5G per month (it’s probably a bit more as I was recently prunning stuff from some dead instances).

Prometheus says whole lemmy service (I use traefik) is getting within about 5 req/s (1m average) though if I go lower it does spike a lot, up to 12 requests within a second then nothing for few.

Attach it to the VM

Is this possible only with the extra, bought storage boxes ? Or is this possible even with the free 100G backup boxes offered with each dedicated machine ? (Or is this just nfs mount?)

We have a dedicated machine in a project from Hetzner with big raided hard disks but the latency is starting creep up on us, moving some of the data off to the faster ssd/san boxes would be rather helpful.

Run your ip through ip abuse databases to make sure there is nothing wrong perceived from outside.