I've got a use scenario where I would like to have an expandable volume to handle a growing set of files. Mostly original images + thumbnails. They'll get written once, but read many times. So say the file size varies between 40kb and 20mb.
There will be a 3rd party CDN in front of the nginx server tier that will be reading the files from the volume. I plan to host this in a cloud environment, AWS is a possibility, but I would like to investigate Digitalocean's block storage as well. Each node can have 7 BS disks attached, each disk up to 1.6tb in size. I gather from my reading that glusterfs and other technologies (ceph, etc) work best on bare metal, not in a virtualized environment. Some people have anecdotally stated "don't do POSIX shared filesystems in the cloud", ie I'm asking for trouble. Is this feasible with glusterfs? If not, what else should I look at? If it is feasible, is libgfapi better connection strategy to architect around vs the POSIX/fuse interface? Am I asking the right questions here? Thanks.
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