Related Links: Forrester Research Report Forrester Research Inc. has released a report and an associated analysis tool that offers a methodology for comparing the cost of in-house file storage to the cost of storing files in a public cloud. The report illuminates many variables beyond simple dollars-per-gigabyte base-cost comparisons.The report runs a sample set of data using mid-range values for numerous variables involved in storing 100 terabytes of data for four years. In that example, compared to local hosting, the cloud reduces the cost by 74%. However, if the cost includes a cloud storage gateway service—comprising a client-side server and
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.