Actually, the reason why rbd and rgw was prioritised was because of them being in popular demand. There were also a lot of cash and movement behind them too. I'

Actually, the reason why rbd and rgw was prioritised was because of them being in popular demand. There were also a lot of cash and movement behind them too. I'm not saying it is an easy problem, just that their focus has been on other stuff along the way. So I think it's a question of the correct development focus in the correct order. The goal is to have a single CephFS across the globe, with the current pace they will get there, eventually!