I'm not a customer of hostmysite yet, but i have a question, I have been reading about that fiber cut by a construction company to one of hostmysites data centers and have been impressed with the reponse of hostmysite's staff.

However, why was there not redundant network connections so in the event of a fiber cut, the other backbone would take over?

There actually are multiple backbones (5 at last count I believe) however the fiber pipe was actually cut, i.e. the spot where all the backbones enter the business complex where that data center is located.

During the course of the next 18 months or so (I believe) we will be migrating all of our sites to our 2nd datacenter, which actually has multiple points of entry to address this problem. All new sites/servers are setup at the new data center as well, so this is only a problem for clients with existing accounts older than a year or two.

Yeah, from what my uninformed self observed, the cut pretty much literally happened in our parking lot, between themain junction box and us. There are multiple backbone providers, but something like that.....let's just say it's something you think has a one in a billion chance of happening. But, you can always learn from everything. The odds of that happening a 2nd time have to now be about 1 in 10 billion, but I'm sure we'll be prepared this time.