Not OP but I run a Timescale instance with the same order of magnitude inserts/sec and have been running it for about 2 years now. The database is closing in on 1 TB on disk. We don't use Timescale Cloud, we just host it on a VM in Google cloud with 8 CPU's and 32 gigs of ram, which seems adequate for now. We do WAL backup using the WAL-G tool which backs the db up to google storage.
Thanks so much for this. 2 years at that insert speed only being about 1TB of data is fantastic.
I've also had many discussions on backups (Barman, backrest, Wal-E/G) etc and always feel like I have to look it up afresh every time to get myself back up to speed on which one I should be using.
Ya the backup solutions are complicated. I don't even remember the differences between those different tools. All I remember is that I spent about a day researching the tools and determined that Wal-G was the best one to use for our use case.