What vendors are offering DR services today?
I think SunGard is probably the leader in the open-systems environment. And, IBM is certainly the leader in mainframe environments. Those are the biggest names, but there are many lower profile co-location providers. They tend to be lower profile because they are very local. And that raises the question: How local can your colo provider be in a disaster situation? A disaster site should as far away from the main site as possible. The SEC suggests that 250 miles away is good. The challenge is that synchronous replication has a limit of 60 to 70 miles.
