We are in the process of building a new secure web application for our company, and are looking at options for ensuring redundancy in our data center. We don't have a lot of money, but have relatively high bandwidth requirements, so have considered a 50/20 FiOS Business connection with a T1 backup, which would cost ~$600/month total. In comparison, a 15Mbps partial T3 costs $2500/month in our area.
If we were to go with this set up, is there a way for someone typing in our address to automatically be redirected to the other line if the FiOS is down? Since it's an SSL connection, we'd need to ensure that the certificate would work either way as well.
Update - to those suggesting an outside data center solution, we have relatively high internal user bandwidth requirements (~80Mbps). Purchasing an 80Mbps pipe to a colocation facility, to which we'd also have to pay high monthly fees, isn't really financially feasible. In our area, such a setup would cost around $10,000/month.