“Google File System v2, part 1″
“Google File System v2, part 2″

To my regret these articulate, salient posts went unanswered.
This tells me that the level of “Storage Problem Solving” is still an
art and may never be a science.

The original problem of “Access Density” was tied specifically to disk drives.
Your two posts highlight where the coming “Access Density” problem
will be joined.
When I started looking at bandwidth needs for “End-to-End Information
on Demand (E2EIoD)” there were many other areas (bottlenecks, hot spots) for
restricting or impeding the flow of Information. I tried to identify the most important ones with the “Speed Limit of the Information Universe” concept.

To deal with the problem of the “fire fighting” IT mentality for bottlenecks and hotspots with $pounds and $pounds of $cure, an ounce of prevention would be cheaper and work better. The ounce of prevention would be to have Infrastructure Bandwidth costs added as a line item in the IT budget.
Two options:
1) How much bandwidth do you need? How much can you afford?
2) How much can you afford? How much do you need?