[sgarland]

Setting up HA is approximately the same cost as with anything else: N x $cost. Web servers? Run two with HAProxy fronting them. Want HA HAproxy? Run two with a virtual IP. Etc. Not hard to calculate, not hard to set up. These are all extremely solved problems with tons of documentation available.

I mentioned monitoring being required and having a wide variety of options and price points.

If your DB runs out of space in a VM that’s on you for not having adequate monitoring and alerting. If you don’t have networked storage available and somehow fail to see the predicted eventual out of disk, again, that’s on you.