@pj I am not quite sure how that relates to my problem? I already have a VPN with root access and fast (limited) SSD storage. I know about slow and cheap storage clouds (wasabi, Backblaze). I was asking how to get them play nicely together with a photo archiving / sharing / sorting online application.
@fuxoft well, with WordPress for example, you could "mount" the extra storage to the "uploads" directory and then the WP media library would have all your photos on the bigger mounted drive... Also, VPN & VPS are different, I think you mean VPS.
@pj Oh, yes, sorry, I means VPS. Your proposed solution would only work if the "slow" online storage was accessed infrequently, only when absolutely necessary. I am not sure if any of the open photo management projects support this. I will have to do some experimenting.
@fuxoft I think you want in-house storage (same data center) that will "mount" onto the VPS. 3rd party services may not integrate as well, bc separate data centers = slow performance (longer distance & latency.)
@pj Of course that would be easiest from the technical point of view but that would cost much more than 6 Euro/1000 GB of photos per month I get from Wasabi.com. I think it SHOULD be possible to have the photos in cheap "cold storage" and access them only as neccessary, while having 10 GB of local cache. All searching / indexing could be done locally in that cache. I am currently looking if someone already tried to implement that.
@fuxoft But you have to read the fine print, because often the storage addons are restricted to certain datacenter regions.